The performance of neurologically impaired and normal Ss on four screening techniques

Administered four screening instruments--Peabody Picture Vocabulary Test-Form A (PPVT-A), Riley Preschool Developmental Screening Inventory-Designs (RPDD), Riley Make-A-Boy (RMB) and the McCarthy Scales of Children's Ability Designs (MSCD)--to 23 normal children with no evidence of neurological impairment and 23 neurologically impaired children under 6 years of age. The children were matched for age and sex and were from a day-care program for working parents and a therapeutic preschool program, respectively. Significant differences were found between the two groups on all instruments. The highest positive correlation for the impaired group was between the PPVT-A and the RPDD, while for the control group the highest positive correlation was between the RPDD and MSCD.