Friday, December 16, 2016

The Gender Gap in Autism: Where are the Girls?

The Gender Gap in Autism: Where are the Girls?

There has been a dramatic increase in reported cases of autism over the past decade. Prevalence rates have risen steadily, from one in 150, to one in 110, and now to one in every 59 children (or 16.8 per 1,000 8-year-olds). According to the CDC's Autism and Developmental Disabilities Monitoring (ADDM) Network, autism is 4 times more common among boys (1 in 37) than among girls (1 in 151). Statistics also indicate that referrals for evaluation of boys are nearly ten times higher than for girls. Moreover, girls are diagnosed with autism at later ages compared to boys. This gender “gap” raises serious questions because many female students with ASD are being overlooked and will not receive the appropriate educational supports and services. 
Why are fewer girls being identified?  Why do parents of girls experience a delay in receiving a diagnosis?  Are there gender differences in the expression of the disorder? Answers to these questions have practical implications in that gender specific variations may have a significant impact on identification practices and the provision of clinical and educational services. Although few studies have examined gender differences in the expression of autism spectrum disorders, we do have several tentative explanations for the underdiagnosis and late identification of girls with ASD. They include the following. 
  • Social communication and pragmatic deficits may not be readily apparent in girls because of a non-externalizing behavioral profile, passivity, and lack of initiative. Girls who have difficulty making sustained eye contact and appear socially withdrawn may also be perceived as “shy,” “naive,” or “sweet” rather than   having the social impairment associated with an autism spectrum disorder.
  • The diagnosis of another disorder often diverts attention from autism-related symptomatology. In many cases, girls tend to receive unspecified diagnoses such as a learning disability, processing problem, or internalizing disorder. A recent survey of women with Asperger syndrome indicated that most received a diagnosis of anxiety or mood disorder prior being identified with an autism spectrum disorder.
  • The perseverative and circumscribed interests of girls with autism spectrum disorders may appear to be age-typical. Girls who are not successful in social relationships and developing friendships might create imaginary friends and elaborate doll play that superficially resembles the neurotypical girl.
  • Although Students with ASD are more likely to be the target of bullying than typical peers, this may not be recognized in girls due to gender differences in preferred modes of aggression. For example, girls may use covert verbal, social, and psychological forms of aggression while boys tend to rely on confrontational and direct modes of bullying. As a result, the more subtle nature of relational and indirect aggression (social exclusion and rejection) used by girls may be taken less seriously than the more obvious, direct aggression exhibited by boys.
  • Although girls may appear less symptomatic than boys, the genders do share similar profiles. Research suggests that when IQ is controlled, the main gender difference is a higher frequency of idiosyncratic and unusual visual interests and lower levels of appropriate play in males compared to females. As a result, the behavior and educational needs of boys are much more difficult to ignore and are frequently seen by teachers and parents as being more urgent, further contributing to a referral bias.
  • Over reliance on the male model with regard to diagnostic criteria might contribute to a gender “bias” and underdiagnosis of girls. Clinical instruments also tend to exclude symptoms and behaviors that may be more typical of females with ASD. For example, assessment instruments such as the Autism Spectrum Rating Scales (ASRS) and Social Responsiveness Scale (SRS) have generally reported higher mean scores for boys than girls. The lower symptom scores for girls may reflect gender differences and expression of the phenotype. Recent research suggests that certain single test items may be more typical of girls than of boys with ASD, and examining symptom gender differences at the individual level might lead to a better understanding of the gender difference in ASD.
  • Apart from biases in reporting or diagnosis, there is significant evidence to suggest that multiple biological factors contribute to the sex differences seen in autism. These include genetic and hormonal differences between males and females that may provide a “protective” mechanism for girls and lead to differences in symptoms and vulnerability to the disorder.
If girls do process language and social information differently than boys, then clinical and educational interventions based largely on research with boys may be inappropriate. As a result, girls may receive less than optimal academic and behavioral interventions. If gender specific variations do exist, then the predictive validity of the diagnosis and developmental course may well differ between the sexes. Unfortunately, the consequences of a missed or late diagnosis can result in social isolation, peer rejection, lowered grades, and a greater risk for mental health and behavioral distress such as anxiety and depression during adolescence and adulthood. As a result, there is an urgent need for research to compare girls with ASD to typical boys and girls to more fully comprehend the implications of being a girl on the autism spectrum. 

Best practice recommends that when a girl presents with a combination of social immaturity, restricted interests, limited eye gaze, repetitive behaviors, social isolation, and is viewed as “unusual” or “different” by parents, teachers and peers, the possibility of an ASD should be given consideration. Clinicians and school-based professionals might also question the presence of ASD in girls referred for internalizing disorders such as anxiety or depression. 

Best practice assessment and intervention guidelines are available from: A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd ed.) and Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. 
Adapted from Wilkinson, L. A. (2016). A best practice guide to assessment and intervention for autism spectrum disorder in schools. London and Philadelphia: Jessica Kingsley Publishers.

Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, chartered psychologist, registered psychologist, and certified cognitive-behavioral therapist. He is also a university educator and trainer, and has published widely on the topic of autism spectrum disorders both in the US and internationally. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series, Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition)

Wednesday, December 7, 2016

Assessment Tools for ASD: Sensitivity Matters


Evidence-based assessment requires using instruments with strong reliability and validity for the accurate identification of children’s problems and disorders, for ongoing monitoring of children’s response to interventions, and for evaluation of the outcomes of intervention. These procedures must also have demonstrated effectiveness in diagnosis, clinical formulation, intervention planning, and outcome assessment. 

Professionals should have an understanding of the basic psychometrics properties that underlie test use and development when assessing children and youth for autism spectrum disorder (ASD). For example, diagnostic validity is an especially important psychometric characteristic to consider when evaluating the quality and usefulness of a screening instrument or more comprehensive measure. It refers to a test’s accuracy in predicting group membership (e.g., ASD versus non-ASD) and can be expressed through metrics such as sensitivity and specificity, and positive predictive value (PPV) and negative predictive value (NPV). 

Sensitivity and specificity are measures of a test's ability to correctly identify someone as having a given disorder or not having the disorder. Sensitivity refers to the percentage of cases with a disorder that screens positive. A highly sensitive test means that there are few false negative results (individuals with a disorder who screen negative), and thus fewer cases of the disorder are missed. Specificity is the percentage of cases without a disorder that screens negative. A highly specific test means that there are few false positive results (e.g., individuals without a disorder who screen positive). False negatives decrease sensitivity, whereas false positives decrease specificity. An efficient screening tool should minimize false negatives, as these are individuals with a likely disorder who remain unidentified. Sensitivity and specificity levels of .80 or higher are generally recommended.  

Positive Predictive Value (PPV) and Negative Predictive Value (NPV) are also important validity statistics that describe how well a screening tool or test performs. The probability of having a given disorder, given the results of a test, is called the predictive value. PPV is interpreted as the percentage of all positive cases that truly have the disorder. PPV is a critical measure of the performance of a diagnostic or screening measure, as it reflects the probability that a positive test or screen identifies the disorder for which the individual is being evaluated or screened. NPV is the percentage of all cases screened negative that are truly without the disorder. The higher the PPV and NPV values, the more efficient the instrument at correctly identifying cases. It is important to recognize that PPV is influenced by the sensitivity and specificity of the test as well as the prevalence of the disorder in the sample under study. For example, an ASD-specific screening measure may be expected to have a higher PPV when utilized with a known group of high-risk children who exhibit signs or symptoms of developmental delay, social skills deficits, or language impairment. In fact, for any diagnostic test, when the prevalence of the disorder is low, the positive PPV will also be low, even using a test with high sensitivity and specificity.
© Lee A. Wilkinson, PhD
Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He provides consultation services and best practice guidance to school systems, agencies, advocacy groups, and professionals on a wide variety of topics related to children and youth with autism spectrum disorders. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series,  Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).

Savant Skills and the Autism Spectrum


What are savant skills?
There is a long history of reports of individuals who despite having severe intellectual impairments, demonstrate remarkable skills in a particular area. The term “savant” has been variously defined as those individuals who show (a) normatively superior performance in an area and (b) a discrepancy between their performance in that area and their general level of functioning. Some researchers have differentiated “prodigious” savants (e.g., individuals possessing an exceptional ability in relation to both their overall level of functioning and the general population) from “talented” savants (e.g., individuals showing an outstanding skill in comparison with their overall level of functioning). 

Savant skills have been reported much more frequently in males than in females and have been identified in a wide range of neurological and neurodevelopmental disorders. The most commonly reported savant skills are mathematical skills (calendrical calculations, rapid arithmetic and prime number calculations), music (especially the ability to replay complex sequences after only one exposure), art (complex scenes with accurate perspective either created or replicated following a single brief viewing) and memory for dates, places, routes or facts. Less frequently reported are “pseudo-verbal” skills (hyperlexia or facility with foreign languages), coordination skills and mechanical aptitude.
Research
Research in the past 10 years has generated some controversy about the actual incidence of savant syndrome in autism. Once thought to be rare in people with autism, found in no more than 1 out of 10 individuals, research over the past few years suggests savant skills may be more common than previous estimates. Although there have been many single case or small group studies of individuals with autism who possess savant abilities or exceptional cognitive skills, there have been few systematic, large-scale investigations in this area. Inconsistencies in definition and wide variation in diagnostic criteria, ages and ability levels of the cases reported are problematic, as is a paucity of valid information on rates of savant skills in ASD. The objective of this research study was to investigate the nature and frequency of savant skills in a large sample of individuals with autism who had been initially diagnosed as children.
The total sample was comprised 137 individuals, first diagnosed with autism as children, who were subsequently involved in an ongoing, longitudinal follow-up study. Cognitive assessments (Wechsler Scales) were completed for all participants (100 males and 37 females) between the ages of 11 and 48 years (mean age of 24). Parental report data on savant skills were obtained approximately 10 years later at a subsequent follow-up.  Cognitive ability ranged from severe intellectual impairment to superior functioning. Savant skills were judged from parental reports and specified as “an outstanding skill/knowledge clearly above participant’s general level of ability and above the population norm.”
Results
Of the 93 individuals for whom parental questionnaire and cognitive data were available, 16 (17.2%) met criteria for a parent-rated skill, 15 (16.8%) had an exceptional cognitive skill and 8 (8.6%) met criteria for both. There were 14 calendrical calculators (one also showed exceptional memory and another also showed skill in computation and music). There were four others with computational skills (in one case combined with memory and in another case with music). Visuospatial skills (e.g., directions or highly accurate drawing) were reported in three individuals. One individual had a musical talent, one an exceptional memory skill and one had skills in both memory and art. The subtest on which participants were most likely to meet the specified criteria for an area of unusual cognitive skill was block design followed by digit span, object assembly and arithmetic.
There was a sex difference (albeit statistically non-significant) in the prevalence of savant skills. Almost one-third (32%) of males showed some form of savant or special cognitive skill compared with 19 percent of females. No individual with a non-verbal IQ below 50 met criteria for a savant skill and contrary to some earlier hypotheses; there was no indication that individuals with higher rates of stereotyped behaviors/interests were more likely to demonstrate savant skills.
Discussion
In total, 39 participants (28.5%) met criteria for a savant skill. Cognitively, 23 individuals (17% of total sample) met criteria for one or more exceptional area of skill on the Wechsler Scales. Combining the two, 37 per cent of the sample showed either savant skills or unusual cognitive skills or both, a far higher proportion than previously reported. These results suggest that the rates of savant skills in autism are significant, particularly among males, and although these estimates are higher than reported by other researchers, the findings parallel those of previous studies. Based on these findings, it appears likely that at least a third of individuals with autism show unusual skills or talents that are both above population norms and above their own overall level of cognitive functioning. It should be noted that these data offer no support to claims that savant skills occur most frequently in individuals with autism who are intellectually challenged or that individuals with higher rates of stereotyped behaviors/interests are more likely to demonstrate savant skills.
Apart from the need for further research examining the underlying basis of savant skills and why certain individuals go on to develop any area of exceptional skill and why these skills encompass such different areas, there is a more practical and pressing question; “how can these innate talents be developed to form the basis of truly ‘functional’ skills?” In the present study, only five individuals with exceptional abilities (four related to math and one related to visuospatial ability) had succeeded in using these skills to find permanent employment. For the majority, the isolated skill remained just that, leading neither to employment nor greater social integration. As the authors conclude, “The practical challenge now is to determine how individuals with special skills can be assisted, from childhood onward, to develop their talents in ways that are of direct practical value (in terms of educational and occupational achievements), thereby enhancing their opportunities for social inclusion as adults.”
Key References

Howlin, P., Goode, S., Hutton, J., & Rutter, M. (2009). Savant skills in autism: Psychometric approaches and parental reportsPhilosophical Transactions of the Royal Society B: Biological Sciences, 364, 1359–1367. doi:10.1098/rstb.2008.0328 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2677586/

Marsa, L. (2016). Extraordinary minds: The link between savantism and autism. https://spectrumnews.org/features/deep-dive/extraordinary-minds-the-link-between-savantism-and-autism/

Treffert D. (2000). Extraordinary people: Understanding savant syndrome. Ballantine Books: New York, NY.

Treffert, D. (2009). The Savant Syndrome: An Extraordinary Condition. A Synopsis: Past, Present, Future. Philosophical Transactions of the Royal Society B: Biological Sciences, 364, 1351–1358.

Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He provides consultation services and best practice guidance to school systems, agencies, advocacy groups, and professionals on a wide variety of topics related to children and youth with autism spectrum disorder. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series,  Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).




Monday, November 21, 2016

Best Practice Guidelines for Assessment of Autism Spectrum Disorder (ASD) in Schools


Best Practice Guidelines for Assessment of Autism Spectrum Disorder

The number of children identified with autism has more than doubled over the last decade. School-based and mental health professionals are now being asked to participate in the screening, assessment, and educational planning for children and youth on the spectrum more than at any other time in the recent past. Moreover, the call for greater use of evidence-based practice has increased demands that professionals be prepared to recognize the presence of risk factors, engage in case finding, and be knowledgeable about “best practice” guidelines in assessment and intervention for autism spectrum disorder (ASD) to ensure that students are being identified and provided with the appropriate programs and services.

Best practice guidelines are developed using the best available research evidence in order to provide professionals with evidence-informed recommendations that support practice and guide practitioner decisions regarding assessment and intervention. Best practice requires the integration of professional expertise, each student’s unique strengths and needs, family values and preferences, and the best research evidence (rigorous peer-review) into the delivery of services. Professionals and families collaborate and work together as partners to prioritize domains of functioning for assessment and intervention planning. Best practices for school-based practitioners are best practices for students and their families.    
    
Comprehensive Developmental Assessment

The primary goals of conducting an autism spectrum assessment are to determine the presence and severity of an autism spectrum disorder (ASD), develop interventions for intervention/treatment planning, and collect data that will help with progress monitoring. Professionals must also determine whether an ASD has been overlooked or misclassified, describe co-occurring (comorbid) disorders, or identify an alternative classification. There are several important considerations that should inform the assessment process. First, a developmental perspective is critically important. While the core symptoms of are present during early childhood, ASD is a lifelong disability that affects the individual’s adaptive functioning from childhood through adulthood. Utilizing a developmental assessment framework provides a yardstick for understanding the severity and quality of delays or atypicality. Because ASD affects multiple developmental domains, the use of an interdisciplinary team constitutes best practice for assessment and diagnosis of ASD. A team approach is essential for establishing a developmental and psychosocial profile of the child in order to guide intervention planning. The following principles should guide the assessment process.
  • Children who screen positive for ASD should be referred for a comprehensive assessment.  Although screening tools have utility in broadly identifying children who are at-risk for an autism spectrum condition, they are not recommended as stand alone diagnostic instruments or as a substitute for a more inclusive assessment.
  • Assessment should involve careful attention to the signs and symptoms consistent with ASD as well as other coexisting childhood disorders.
  • When a student is suspected of having an ASD, a review of his or her developmental history in areas such as speech, communication, social and play skills is an important first step in the assessment process.
  • A family medical history and review of psychosocial factors that may play a role in the child’s development is a significant component of the assessment process. 
  • The integration of information from multiple sources will strengthen the reliability of the assessment results.
  • Evaluation of academic achievement should be included in assessment and intervention planning to address learning and behavioral concerns in the child’s overall school functioning.
  • Assessment procedures should be designed to assist in the development of  instructional objectives and intervention strategies based on the student’s unique pattern of strengths and weaknesses.
  • Because impairment in communication and social reciprocity are core features of ASD, a comprehensive developmental assessment should include both domains
  • Restricted, repetitive patterns of behavior, interests, or activities (RRB) are a defining feature of ASD and should be a focus of assessment.
A comprehensive developmental assessment approach requires the use of multiple measures including, but not limited to, verbal reports, direct observation, direct interaction and evaluation, and third-party reports. Assessment is a continuous process, rather than a series of separate actions, and procedures may overlap and take place in tandem. While specific activities of the assessment process will vary and depend on the child’s age, history, referral questions, and any previous evaluations and assessments, the following components should be included in a best practice assessment and evaluation of ASD in school-age children.
  •  Record review
  •  Developmental and medical history
  •  Medical screening and/or evaluation
  • Parent/caregiver interview
  • Parent/teacher ratings of social competence/interaction
  • Direct child observation
  • Cognitive assessment
  • Academic assessment
  • Adaptive behavior assessment
  • Social communication and language assessment
  • Assessment of RRB (including sensory issues)
Children with ASD often demonstrate additional problems beyond those associated with the core domains. Therefore, other areas should be included in the assessment battery depending on the referral question, history, and core evaluation results. These may include:
  • Sensory processing
  • Executive function, memory, and attention
  •  Motor skills
  • Family system 
  • Co-occurring (comorbid) behavioral/emotional problems   
The above referenced principles and procedures for the assessment of school-age children with ASD are reflected in recommendations of the American Academy of Neurology, the American Academy of Child and Adolescent Psychiatry, American Academy of Pediatrics, and a consensus panel with representation from multiple professional societies. A detailed description of the comprehensive developmental assessment model and specific assessment tools recommended for each domain can be found in A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).

Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He provides consultation services and best practice guidance to school systems, agencies, advocacy groups, and professionals on a wide variety of topics related to children and youth with autism spectrum disorders. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series,  Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).
© Lee A. Wilkinson, PhD

Positive Behavior Intervention & Support (PBIS) for Learners on the Autism Spectrum




The problem behaviors of children on the autism spectrum (ASD) are among the most challenging and stressful issues faced by schools and parents. The current best practice in treating and preventing undesirable or challenging behaviors utilizes the principles and practices of positive behavior support (PBS). PBS is not a specific intervention per se, but rather a set of research-based strategies that are intended to decrease problem behaviors by designing effective environments and teaching students appropriate social and communication skills. PBS utilizes primary (school-wide), secondary (targeted group), and tertiary (individual) levels or tiers of intervention, with each tier providing an increasing level of intensity and support. 
Other than families, teachers are the most influential resource for students with and without special needs. Although functional behavior assessment (FBA) and intensive individual support is recommended for students with serious and persistent challenging behaviors, teachers may prevent the possibility of problematic behavior through the implementation of class-wide and targeted group PBS strategies. For example, effective prevention of challenging social behavior can be addressed through arranging the classroom environment and/or by adapting instruction and the curriculum. Changing the classroom environment or instruction may lessen the triggers or events that set off the challenging behavior. Teaching effective social interaction and communication as replacements for challenging behavior is also a preventive strategy for improving little used student social interaction and communication skills. Teachers can model, demonstrate, coach, or role-play the appropriate interaction skills. They can teach students to ask for help during difficult activities or negotiate alternative times to finish work. Encouraging positive social interactions such as conversational skills will help students with challenging behavior to effectively obtain positive peer attention. The following are examples of PBS strategies for improving social skills and prosocial behaviors in the classroom (Vaughn, Duchnowski, Sheffield, & Kutash, 2005; Wilkinson, 2016). 
Initiating interactions. Teachers might notice that when a student with ASD enters the classroom, group activity, or other social interaction, he or she may have particular difficulty greeting others students or starting a conversation. For example, they may joke, call another student a name, laugh, or say something inappropriate. In this situation, the student may have trouble ini­tiating interactions or conversations. The teacher might talk to the student individually and offer suggestions for ways he or she can provide an appropriate greeting or introduce a topic of conversation. The student might then be asked to practice or role-play the desired behavior.
Example: “why don’t you ask students what they did last night, tell them about a TV show you watched, or ask if they finished their homework, rather than shouting or saying ‘Hey, Stupid.’ Other students in the class want to be your friend, but you make it difficult for them to talk with you. Let’s practice the next time the class begins a new group activity.”
Maintaining interactions. Many students with ASD struggle to maintain a conversation (e.g.., turn taking). Some may dominate the conversation and make others feel that they have nothing to contribute, while other students may experience difficulty keeping up with the flow of conversation and asking questions. Students may also have lim­ited topics of interest and discuss these topics repetitively.
Example: “I’ve noticed that other students cannot share their thoughts and ideas with you when you start a conversation because you do all the talking. It may seem to them that you don’t care what they have to say. Other students will be more willing to talk if you stop once you’ve stated your idea or opinion and allow them a turn to talk. When you stop, they know you are listening. You can say to them, “What do you think?” or “Has this ever happened to you?’”
Terminating interactions. Some students with ASD may not know how to appropriately end a conversation. They may abruptly walk away, start talking with another student, or bluntly tell a student they don’t know what they’re talking about. Other students may interpret this as rude and impolite behavior. Teachers might point out to the student some ac­ceptable ways of ending a conversation.
Example: “You just walked away from that student when they were talking. Rather than walk away, you might say “‘I have to go now,’ ‘It’s time for my next class,’ ‘Or ‘I’ll see you later and we can finish our talk.’”
Recognizing body language. The recognition of body language or nonverbal cues is critical to suc­cessful social interactions. Students with ASD typically have difficulty interpreting these cues from teachers or other students. Body language tells students when they violate a person’s personal space, a person needs to leave, or they need to change behavior. Teachers can incorporate these skills into their class time or school day.
Example: Before leaving the classroom, demonstrate  nonverbal cues by holding a finger to your lips and telling students that means “quiet,” a hand held up with palm fac­ing outward means “wait” or “stop,” and both hands pushing downward means “slow down.” You may need to demonstrate facial expressions you use to “deliver messages” and what they mean. Other students can demonstrate nonverbal cues they use. When students move through the halls, you may want to teach them the “arms length” rule for personal space.
Transitions. Many students with ASD have significant problems changing from one activity to the next or moving from one location to another. They may be easily upset by abrupt changes in routine and unable to estimate how much time is left to finish an activity and begin the next one. Poor executive function skills such as disorganization may also prevent them from putting materials away from the last activity or getting ready for the next activity. They may also need closure and preparation time for the transition. Problems arise if the teacher tries to push them to transition at the last minute.
Example: About 10 minutes prior to the transition, refer to the classroom schedule and announce when the bell will ring or when the next activity will begin. Provide a 5-minute and then a 1-minute warning. This countdown helps students finish assignments or end favorite activities. For students that have difficulty getting started after a transition, place assign­ment folders on their desks so that they have their assignments and don’t have to wait for instructions or materials. They can use the same folder to submit assignments (the folders can be left on their desks at the end of the period).
Conclusion 
Students on the autism spectrum often lack the social skills to communicate and interact effectively with peers and adults. They may use challenging or disruptive behavior to communicate their needs. These examples illustrate how PBS provides a proactive framework for assessing social interaction and communication needs and for teaching new, effective skills that replace the challenging behavior. When used consistently, these strategies fit within the framework of the classroom and can help promote positive student behavior.

Resources for Further Information  
Alberto, P., & Troutman, A. (2006). Applied behavior analysis for teachers (7th edition). New York, NY: Prentice-Hall.
Crone, D. A., Horner, R. H., & Hawken, L. S. (2004). Responding to problem behavior in schools: The behavior education program. New York: Guilford Press.
Crone, D. A., & Horner, R. H. (2003). Building positive behavior support systems in schools: Functional behavioral assessment. New York: Guilford.
Dunlap, G., Iovannone, R., Kincaid, D., Wilson, K., Christiansen, K., Strain, P., & English, C., (2010). Prevent-Teach-Reinforce: A school-based model of positive behavior support. Baltimore: Brookes.
Horner, R. H., Sugai, G., Todd, A. W., & Lewis-Palmer, T. (2005). School-wide positive behavior support. In L. Bambara & L. Kern (Eds.), Individualized supports for students with problem behaviors: Designing positive behavior plans (pp. 359-390). New York: Guilford Press.
Martella, R. C., Nelson, J. R., & Marchand-Martella, N. E. (2003). Managing disruptive behaviors in the schools: A schoolwide, classroom, and individualized social learning approach. Boston, MA: Allyn and Bacon, Inc.
OSEP Technical Assistance Center on Positive Behavioral Interventions and Supports. http://www.pbis.org/default.aspx 
Sprague, J. R., & Walker, H. M. (2005). Safe and healthy schools: Practical prevention strategies. New York, NY: Guilford.
Sprick, R.S., & Garrison, M. (2008). Interventions: Evidence-based behavioral strategies for individual students. Eugene, OR: Pacific Northwest Publishing.
Vaughn, B., Duchnowski, A., Sheffield, S., & Kutash, K., (2005). Positive behavior support: A classroom-wide approach to successful student achievement and interactions. Department of Child and Family Studies, Louis de la Parte Florida Mental Health Institute. Tampa, FL: University of South Florida.
Wilkinson, L. A. (2016). A best practice guide to assessment and intervention for autism spectrum disorder in schools. London: Jessica Kingsley Publishers.
Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He provides consultation services and best practice guidance to school systems, agencies, advocacy groups, and professionals on a wide variety of topics related to children and youth with autism spectrum disorders. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series,  Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).

Learners on the Autism Spectrum: A Best Practice Guide to Assessment & Intervention in Schools



A Best Practice Guide to Assessment & Intervention for Autism in Schools

Fully updated to reflect DSM-5 and current assessment tools, procedures and research, this second edition of the award-winning book, A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools provides a practical and scientifically-based approach to identifying, assessing, and treating children and adolescents with an Autism Spectrum Disorder (ASD) in school settings. Integrating current research evidence with theory and best practice, this book will support school-based professionals in a number of key areas including:
  • Screening and assessing children and youth on the autism spectrum.
  • Identifying evidence-based interventions and practices.
  • Developing and implementing comprehensive educational programs and providing family support.
    Each chapter features a consolidated and integrative description of best practice assessment and intervention/treatment approaches for children and youth with ASD. It brings the topics of assessment and intervention together in a single authoritative resource guide consistent with recent advances in evidence-based practice.  Illustrative case examples, glossary of terms, and helpful checklists and forms make this the definitive resource for identifying and implementing interventions for school-age children and youth with ASD.
    This Guide is intended to meet the needs of school-based professionals such as school psychologists, counselors, speech/language pathologists, occupational therapists, counselors, social workers, administrators, and both general and special education teachers. Parents, advocates, and community-based professionals will also find this guide a valuable and informative resource.

    Editorial Reviews  
    “It is rare that one book can pack so many resources and easy to digest information into a single volume!  Families, school personnel, and professionals all need the extensive, and up-to-date tips, guides, and ‘must-knows’ provided here. It’s obvious the author is both a seasoned researcher and practitioner – a winning combination.”
     
    — Dr. Debra Moore, psychologist and co-author with Dr. Temple Grandin, of The Loving Push: How Parents & Professionals Can Help Spectrum Kids Become Successful Adults
    “Dr Wilkinson has done it again. This updated and scholarly Second Edition reflects important recent changes regarding diagnosis and services for students with Autism Spectrum Disorder. With its numerous best-practice suggestions, it is a must-read for school psychologists, school social workers, and those who teach in general and special education.”
    — Dr Steven Landau, Professor of School Psychology in the Department of Psychology, Illinois State University
    “This book is an essential resource for every educator that works with students with ASD! The easy-to-read format is complete with up to date research on evidence-based practices for this population, sample observation and assessment worksheets and case studies that allow the reader to apply the information presented.”
     — Gena P. Barnhill, PhD, NCSP, BCBA-D, LBA, Director of Special Education Programs at Lynchburg College, Lynchburg, VA  

    Availability

    A Best practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Ed.) is available from Jessica Kingsley Publishers, Amazon.com, Barnes & Noble, Books-A-MillionWalmart.comBook Depository, and other booksellers. The book is available in both print and eBook formats.

    Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He provides consultation services and best practice guidance to school systems, agencies, advocacy groups, and professionals on a wide variety of topics related to children and youth with autism spectrum disorders. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series,  Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).

    Saturday, November 19, 2016

    Award-Winning Finalist in the Psychology/Mental Health category of the 2016 Best Book Awards



    Overcoming Anxiety and Depression on the Autism Spectrum is available from Jessica Kingsley Publishers, AmazonBarnes & Noble, Book DepositoryBooks-A-Million and other online book retailers.

    Get the lowest price on Overcoming Anxiety and Depression on the Autism Spectrum: A Self-help Guide Using CBT from AllBookstores.com.

    Lee A. Wilkinson, PhD is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He provides consultation services and best practice guidance to school systems, agencies, advocacy groups, and professionals on a wide variety of topics related to children and youth with autism spectrum disorder. Dr. Wilkinson is author of the award-winning books,  A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools and Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBTHe is also editor of a best-selling text in the APA School Psychology Book Series, Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools. His latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).



    Wednesday, November 16, 2016

    Best Practice Review: The Social Communication Questionnaire (SCQ)

    Best Practice Review: The Social Communication Questionnaire (SCQ)

    The Social Communication Questionnaire (SCQ; Rutter, Bailey, & Lord, 2003), previously known as the Autism Screening Questionnaire (ASQ), was initially designed as a companion screening measure for the Autism Diagnostic Interview-Revised (ADI-R; Rutter, Le Couteur & Lord). The SCQ is a parent/caregiver dimensional measure of ASD symptomatology appropriate for children of any chronological age older than fours years. It can be completed by the informant in less than 10 minutes. The primary standardization data were obtained from a sample of 200 individuals who had participated in previous studies of ASD. 

    The SCQ is available in two forms, Lifetime and Current, each with 40 questions presented in a yes or no format. Scores on the questionnaire provide an index of symptom severity and indicate the likelihood that a child has an ASD. Questions include items in the reciprocal social interaction domain (e.g., “Does she/he have any particular friends or best friend?”), the communication domain (e.g., “Can you have a to and fro ‘conversation’ with him/her that involves taking turns or building on what you have said?”) and the restricted, repetitive, and stereotyped patterns of behavior domain (e.g., Has she/he ever seemed to be more interested in parts of a toy or an object [e.g., spinning the wheels of a car], rather than using the object as intended?”).
    Compared to other screening measures, the SCQ has received significant scrutiny and has consistently demonstrated its effectiveness in predicting ASD versus non-ASD status in multiple studies. A meta-analysis examining the previous research on the utility of the SCQ as a screening instrument found it to be an acceptable screening tool for ASD (area under the curve = 0.885) (Chesnut et al., 2017). The scale has been found to have good discriminant validity and utility as an efficient screener for at-risk groups of school-age children. The lifetime version is recommended for screening purposes as it demonstrates the highest sensitivity value. A threshold raw score of >15 is recommended to minimize the risk of false negatives and indicate the need for a comprehensive evaluation. Comparing autism to other diagnoses, this threshold score resulted in a sensitivity value of .96 and a specificity value of .80 in a large population of children with autism and other developmental disorders. The positive predictive value was .93 with this cutoff. The authors recommend using different cut-off scores for different purposes and populations. Several studies (Allen et al., 2007; Eaves et al, 2006) have suggested that a cut-off of 11 may be more clinically useful (Norris & Lecavalier, 2010).
    The SCQ is one of the most researched of the ASD-specific evaluation tools and can be recommended for screening and as part of comprehensive developmental assessment for ASD (Chestnut et al., 2017; Norris & Lecavalier, 2010; Wilkinson, 2010, 2016). The SCQ (Lifetime form) is an efficient screening instrument for identifying children with possible ASD for a more in-depth assessment. For clinical purposes, practitioners might consider a multistage assessment beginning with the SCQ, followed by a comprehensive developmental evaluation (Wilkinson, 2011, 2016). However, cut-off scores may need to be adjusted depending on the population in which it is used. The evidence also indicates that although the SCQ is appropriate for a wide age range, it is less effective when used with younger populations (e.g., children two to three years). It was designed for individuals above the age of four years, and seems to perform best with individuals over seven years of age.

    References

    Allen CW, Silove N, Williams K, et al. (2007). Validity of the Social Communication Questionnaire in Assessing Risk of Autism in Preschool Children with Developmental Problems. J Autism Dev Disord37, 1272–8.

    Chandler, S., Charman, T., Baird, G., Simonoff, E., Loucas, T., Meldrum, D., & Pickles, A. (2007). Validation of the Social Communication Questionnaire in a population cohort of children with autism spectrum disorders. Journal of the American Academy of Child and Adolescent Psychiatry, 46, 1324–1332.

    Chesnut, S. R., Wei,T., Barnard-Brak, L., & Richman, D. M. (2017). A meta-analysis of the social communication questionnaire: Screening for autism spectrum disorder. Autism, 21, 920-928. https://doi.org/10.1177/1362361316660065
    Eaves L, Wingert H, Ho H, et al. (2006). Screening for Autism Spectrum Disorders with the Social Communication Questionnaire. Developmental and Behavioral Pediatrics, 27, 95–103.
    Mash, E. J., & Hunsley, J. (2005). Evidence-based assessment of child and adolescent disorders: Issues and challenges. Journal of Clinical Child and Adolescent Psychology, 34, 362-379.
    Norris, M., & Lecavalier, L. (2010). Screening accuracy of level 2 autism spectrum disorder rating scales: A review of selected instruments. Autism, 14, 263–284.
    Rutter, M., Bailey, A., & Lord, C. (2003). Social Communication Questionnaire. Los Angeles: Western Psychological Services.
    Wilkinson, L. A. (2010).  A best practice guide to assessment and intervention for autism and Asperger syndrome in schools. London and Philadelphia: Jessica Kingsley Publishers.
    Wilkinson, L. A. (2011). Identifying students with autism spectrum disorders: A review of selected screening tools. Communiqué, 40, pp. 1, 31-33.

    Wilkinson, L. A. (2016).  A best practice guide to assessment and intervention for autism spectrum disorder in schools (2nd Edition). London and Philadelphia: Jessica Kingsley Publishers.

    Lee A. Wilkinson, PhD, NCSP is a licensed and nationally certified school psychologist, registered psychologist, and certified cognitive-behavioral therapist. He is author of the award-winning book, A Best Practice Guide to Assessment and Intervention for Autism and Asperger Syndrome in Schools, published by Jessica Kingsley Publishers. He is also editor of a best-selling text in the APA School Psychology Book Series, Autism Spectrum Disorder in Children and Adolescents: Evidence-Based Assessment and Intervention in Schools, and author of the book, Overcoming Anxiety and Depression on the Autism Spectrum: A Self-Help Guide Using CBT. Dr. Wilkinson's latest book is A Best Practice Guide to Assessment and Intervention for Autism Spectrum Disorder in Schools (2nd Edition).

    © Lee A. Wilkinson, PhD

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