Longitudinal Measurement Invariance of the Autism Impact Measure (AIM) in Children and Adolescents With Autism.

Integrated Psychometric Evaluation of the Self-Report SDQ Emotional Problems Scale Across Adolescence

Abstract: Despite the widespread use of the Emotional Problems subscale of the Strengths and Difficulties Questionnaire (SDQ-EP), integrated evidence on its longitudinal measurement properties remains limited. The present study used two longitudinal school-based samples of adolescent self-report data from Norway (Grade...

The Affective Reactivity Index in Australian children: Psychometric properties and measurement invariance across clinical and community samples.

Irritability is a common transdiagnostic feature of child psychopathology, often first emerging in early to middle childhood. This study investigated the psychometric properties of the Affective Reactivity Index-Parent Version, a widely used measure of irritability, in Australian children aged 4-12 years. Participants...

Addressing Common Problems in Autism Research: cohort development and sample description for a participatory, real-world, longitudinal study of outcomes in autistic adults

Adult autism services research is plagued by methodological challenges, including difficulty obtaining representative or heterogeneous samples and a frequent mismatch between experimental methodologies and real-world settings. The Academic Autism Spectrum Partnership in Research and Education (AASPIRE) Outcomes Project...

Differences in autism features and adaptive functioning between adolescents with autism spectrum disorder and social communication disorder

Introduction This study aimed to characterize adolescents with social communication disorder (SCD) in comparison with those with autism spectrum disorder (ASD) across two dimensions: autism features and adaptive functioning. SCD shares social communication difficulties with ASD, resulting in unclear diagnostic boundari...

Psychometric properties of the PANSS autism severity score (PAUSS) in young peoples at clinical high risk for psychosis: does it really measure autistic features?

The PANSS Autism Severity Score (PAUSS) is a commonly used measure for autistic features in early psychosis, including in adolescents at Clinical High Risk (CHR). However, no research examining its psychometric properties in this at-risk population has been published to date. Therefore, we explored reliability, validit...

Measurement Equivalence of an ADHD Screening Tool Across Diverse Racial and Ethnic Children