There are few evaluated economic tools to assess change in autism. This study examined the inter-rater reliability of the Developmental Disabilities Children's Global Assessment Scale (DD-CGAS), and the OSU Autism Clinical Global Impression (OSU Autism CGI) in a European setting. Using these scales, 16 clinicians with multidisciplinary…

Reliable and valid assessment of aberrant behaviors is essential in empirically verifying prevention and intervention for individuals with intellectual or developmental disabilities (IDD). Few instruments exist which assess behavior problems in infants. The current longitudinal study examined the performance of three behavior-rating scales for…

Recent insight into the underlying molecular and cellular mechanisms of fragile X syndrome (FXS) has led to the proposal and development of new pharmaceutical treatment strategies, and the initiation of clinical trials aimed at correcting core symptoms of the developmental disorder. Consequently, there is an urgent and critical need for outcome…

The PEP-R (psychoeducational profile revised) is an instrument that has been used in many countries to assess abilities and formulate treatment programs for children with autism and related developmental disorders. To the end to provide further information on the PEP-R's psychometric properties, a large sample (N = 137) of children presenting…

Evaluating pain in adults with intellectual and developmental disability (IDD) is a challenge. The Non-Communicating Adults Pain Checklist (NCAPC) was recently developed from the Non-Communicating Children's Pain Checklist (NCCPC) and examined in a group of adults with IDD (N = 228) and found to hold satisfactory construct validity, internal…

In this study, self-reports of 34 individuals with developmental disabilities (DD) were compared with proxy ratings from family and providers. Correlations between the ratings of individuals with DD and the proxy raters were low, as were the correlations between family members and providers. In all scales except "cognition," the individual with DD…

A study with 10 developmentally delayed children between the ages of 52 and 80 months found that test-retest samples resulted in greater variability for lexical and morphological measurements than split-half transcripts. It was also found that 50-utterance sample segments contained 70-80 percent of the lexical information found in 100-utterance…

This paper reviews the psychometric properties, treatment utility, and conceptual basis of instruments used to identify the functions of aberrant behaviors in people with developmental disabilities. Instruments include the Motivational Assessment Scale, Motivation Analysis Rating Scale, Functional Analysis Interview Form, and Functional Analysis…

This study describes the development of the Active Treatment Client Rights checklist (ATCR), which was designed to facilitate the assessment, monitoring, and implementation of readily observable client active treatment services for adults with developmental disabilities. The ATCR was found to be highly reliable, valid, and useful in enhancing…

A study involving 470 parents of children with developmental disabilities examined the psychometric properties of a five-item subcomponent (DEP5) of Factor 1, Parent and Family Problems, of the Friedrich Questionnaire on Resources and Stress. Results found the DEP5 to be a reliable and valid measure of depressive reactions. (Author/CR)

The use of anti-epileptic medications (AEDs) is much higher in individuals with intellectual disabilities than in the general population. As many of these individuals rely on such medications, clinicians should consider psychometrically sound instruments for assessing adverse side effects of these medications as one aspect of routine clinical…

This study evaluated the Consent Screening Interview, which assesses the ability of adults with developmental disabilities to give direct consent for community residential placement. Interviews conducted with 17 adults with mental retardation and a control group of 8 individuals indicated that the instrument differentiated between those subjects…

This book chapter outlines a number of key characteristics crucial to the integrity, utility, and efficiency of a behavioral assessment instrument for community living skills of people with developmental disabilities. In addition to basic psychometric considerations, the paper suggests that the functions of a behavioral assessment instrument could…