Validating the Revised Illness Perception Questionnaire as a Measure of Parent Perceptions of Autism Spectrum Disorder.

The illness perception questionnaire (IPQ) and its revision (IPQ-R) measure perceptions about health-related diagnoses and the influence of cognitions on coping. In this study, the factor structure of a version revised for use with autism spectrum disorder (ASD) was investigated with a sample of parents (n = 361) whose children have ASD. Subsequently, multidimensional item response theory was used to evaluate item and subscale properties.

Breakfast consumption has no effect on neuropsychological functioning in children: a repeated-measures clinical trial.

Background: Although many studies have investigated the relation between breakfast consumption and various domains of cognitive functioning within children, some of the reported findings are inconsistent.

Objective: We sought to determine the short-term effects of a breakfast meal on the neuropsychological functioning of healthy school-aged children after an overnight fast.

Design: The study was conducted in a clinical research center with the use of a counterbalanced repeated-measures design among children who either consumed breakfast or were fasting.

Emotional and behavioral adjustment in typically developing siblings of children with autism spectrum disorders.

Research findings describing the emotional and behavioral functioning of typically developing (TD) siblings of children with autism spectrum disorders (ASD) are contradictory. Methodological issues, such as small study sample sizes and reliance on parent report, may contribute to inconsistent findings. The purpose of this study was to use parent and teacher report to describe presence of internalizing and externalizing behaviors among a large sample (n = 486) of TD siblings of children with ASD.