In order to locate optimal cutoff scores for detecting developmental delays, the Brigance Screens were administered to 408 children (ages 21-48 months) along with a criterion battery measuring achievement and intelligence. The Receiver Operating Characteristic analyses were then used to locate optical cutoff scores for each form of the Brigance.…

As part of a larger longitudinal study, scores of 239 children (ages 1 to 4) with disabilities on the Battelle Developmental Inventory (BDI) were compared with scores on the Woodcock-Johnson Test of Achievement (Revised) 1 to 3 years later. The BDI scores from children at or above age 2 predicted later achievement scores (mean correlation .74).…

Rasch calibration procedures were applied to item-response data for the 1,262 infants and toddlers comprising the standardization sample for the Mental Scale of the Bayley Scales of Infant Development. Analyses tend to confirm the psychometric integrity of the instrument. (Author)

The Developmental Activities Screening Inventory II (DASI-II) was administered to a group of 13 toddlers with severe disabilities. Results indicated that interrater reliability was statistically significant across raters for all scores reported by the DASI-II and that test-retest stability was statistically significant across administrations and…

The Minnesota Child Development Inventory-Spanish Version, a parental report assessment, was completed for 1,043 Hispanic migrant worker children (ages 12-71 months). This assessment is widely used for screening and assessment within migrant early intervention programs. Overall, the assessment was a reliable instrument for children in the 24-…