Criterion-Related and construct validity of the pervasive developmental disorders rating scale and the autism behavior checklist

Diagnostic Instruments in Autistic Spectrum Disorders

“…Reliability was lower in this situation ranging from .44 to .53 (Eaves, Campbell, & Chambers, 2000). Internal consistency was good, resulting in reliability coefficients between .79 and .90 for the scales and .92 on the total score.…”

“…No special training is required. When using this lower cut-off, Eaves et al (2000) found that overall classification accuracy was 80%, specificity (correct negatives) was 91% and sensitivity (correct positives) was 77%. The rater completes dichotomous ratings, which are weighted according to the authors' data and yield a total score.…”

“…The ABC and the PDDRS scores were consistent in classifying children with autism in 85% of the sample (Eaves et al, 2000). Partial correlations, with chronological age as the control variable, were run on the ABC scales and the PDDRS factors.…”

“…The Pervasive Developmental Disorders Rating Scale (PDDRS) is a revision of an earlier scale developed (Eaves, 1990;Eaves & Hooper, 1987), and includes 51 items across three subscales (arousal, affect, and cognition), based on the DSM-III-R. Each behavior is rated on a 5-point Likert scale. The author suggests that both the total score and the arousal factor score meet the cutoff of one standard deviation below the mean (standard score > 85), to classify a child as PDD.…”

Applied Behavior Analysis for Children with Autism Spectrum Disorders

“…However, when the cutoff score was lowered to 44, these researchers found that 87% of individuals with ASD were correctly classified as well as 96% of the neural normal. Most recently, Eaves, Campbell, and Chambers (2000) used the lower cutoff score recommended by Krug, Arick, and Almond (1993) and found that the ABC correctly classified 80% of the participants in their sample.…”