Conclusions We found patchy evidence on reliability and validity , for only a few of the tools used to measure behaviour problems in young children with ASD .
Background Behaviour problems are common in young children with autism spectrum disorder ( ASD ) .
There are many different tools used to measure behavior problems but little is known about their validity for the population .
Objectives To evaluate the measurement properties of behaviour problems tools  used in evaluation of intervention or observational research studies with children with ASD up to the age of six years .
Factor structure and psychometric properties of the revised Home Situations Questionnaire for autism spectrum disorder: The Home Situations Questionnaire-Autism Spectrum Disorder
Previously , we adapted the Home Situations Question naire to measure behavioral non-compliance in everyday setting s in children with pervasive developmental disorders . In this study , we further revised this instrument for use in autism spectrum disorder and examined its psychometric properties ( referred to as the Home Situations Question naire-Autism Spectrum Disorder ) . To cover a broader range of situations and improve reliability , we prepared seven new items describing situations in which children with autism spectrum disorder might display non-compliance . Parents completed ratings of 242 children with autism spectrum disorder with accompanying disruptive behaviors ( ages 4–14 years ) participating in one of two r and omized clinical trials . Results from an exploratory factor analysis indicated that the Home Situations Question naire-Autism Spectrum Disorder consists of two 12-item factors : Socially Inflexible ( α = 0.84 ) and Dem and Specific ( α = 0.89 ) . One-to-two-week test – retest reliability was statistically significant for all scored items and also for subscale totals . The pattern of correspondence between the Home Situations Question naire-Autism Spectrum Disorder and parent-rated problem behavior , clinician-rated repetitive behavior , adaptive behavior , and IQ provided evidence for concurrent and divergent validity of the Home Situations Question naire-Autism Spectrum Disorder . Overall , the results suggest that the Home Situations Question naire-Autism Spectrum Disorder is an adequate measure for assessing non-compliance in a variety of situations in this population , and use of its two subscales will likely provide a more refined interpretation of ratings
Conclusions We found patchy evidence on reliability and validity , for only a few of the tools used to measure behaviour problems in young children with ASD .
Background Behaviour problems are common in young children with autism spectrum disorder ( ASD ) .
There are many different tools used to measure behavior problems but little is known about their validity for the population .
Objectives To evaluate the measurement properties of behaviour problems tools  used in evaluation of intervention or observational research studies with children with ASD up to the age of six years .