Eighty at-risk infants were administered the Mental and Motor Scales of the Bayley Scales of Infant Development at 6 and 12 months of age. Test-retest reliability scores of .71 on the Mental Scale and .69 on the Motor Scale were obtained. (Author/JDD)

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…

A conceptual model of quality of life, developed at the Centre for Health Promotion at the University of Toronto (Canada), and associated instrumentation for collecting data from persons with developmental disabilities are presented. Results from a preliminary study with 41 participants support the reliability and validity of the model's…

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…

Evaluation of the reliability of 7 measures assessing social cognitive variables hypothesized to define social intelligence, with a total of 125 adolescents with mental retardation, found high to very high interrater reliability coefficients; moderate to very high internal reliabilities; and moderate to high test-retest reliabilities. (Author/DB)

The Swedish version of the Communication Strategies scale of the Communication Profile for the Hearing Impaired was evaluated in terms of descriptive statistics, corrected item-total correlations, principal component analysis, and internal consistency reliability. The study concludes that the scale is an adequately reliable and clinically useful…

The Milestone Reinforcer Survey was developed to assess reinforcer preferences of adults with mild to profound retardation living in community settings. Psychometric properties of the survey were established with 120 adults. The total reinforcer scores were found to be internally consistent, consistent across raters, and stable over time.…

In this study, interrater reliability of the Motivation Assessment Scale (MAS) was investigated utilizing 84 direct-care staff members familiar with 42 adults with moderate to profound mental retardation. Problematic overt behaviors were evaluated using the MAS. MAS items were found to be moderately but significantly reliable across raters.…

The Psychopathology Instrument for Mentally Retarded Adults--Sexuality Scale was developed and used to study 86 adults with mild/moderate mental retardation. Psychometric characteristics were favorable. Differences in the rate of sexually aberrant behavior are addressed as a function of living and work placement, positive history of sexual abuse,…

The reliability of diagnoses of mental retardation severity was examined by comparing psychiatric and psychological case records of 126 dually diagnosed (mental retardation and psychiatric disorder) clients. Overall chance-corrected agreement was 0.47. Results suggested that the reliability of diagnostic decisions may be best evaluated by analysis…

This study evaluated the reliability of the Child Behavior Checklist with 42 children and youth with mild mental retardation. Use of kappa coefficients and intra-class correlations at item and syndrome levels indicated that the Child Behavior Checklist may not always represent a reliable checklist for the assessment of psychopathology in this…

The internal reliability and concurrent validity of the Play Assessment Questionnaire (PAQ) was compared to that of the Minnesota Child Development Inventory with 170 deaf or hard of hearing infants and toddlers. The PAQ was found to be a useful nonverbal tool that assesses symbolic play behaviors and demonstrates a parallel development with…

Four writing samples were obtained from 638 foreign college applicants who represented three major foreign language groups (Arabic, Chinese, and Spanish), and from 60 native English speakers. All four were scored holistically, two were also scored for sentence-level and discourse-level skills, and some were scored by the Writer's Workbench…

A study examined educational adjustment (the personal and environmental compatibility with an educational program) and its relationship to several variables to which it is believed to be related. These variables included measures of satisfaction and satisfactoriness, several aptitude measures, and a series of demographic variables obtained from…

The monograph provides a review of research studies over the past 25 years which have made use of the Attitude Toward Disabled Persons (ATDP) Scale. The report focuses on pertinent information about the scales, their psychometric properties, and the multitude of ways they have been used. An introductory chapter looks briefly at the history of the…