Adaptations of the Denver Developmental Screening Test: A Study of Preschool Screening

Abstract

Developmental screening tests are only rarely used in pediatric practice, reportedly because of lack of available time. This study evaluated a shortened form of the Denver Developmental Screening Test (DDST-S) consisting of only those items immediately to the left of the child's individual are line, three in each sector or a total of 12. This DDST-S was administered to four cohorts of preschool children (aged 52 to 64 months), 1,819 children in all. Subsamples of these children returned within three months for one of several developmental (criterion) tests (McCarthy Scales of Children's Abilities, the complete DDST, or the Stanford-Binet). The DDST-S was scored by selecting the profile of passes and failures most predictive of McCarthy test results, using indices of copositivity, connegativity, underreferral, and overreferral as the basis for the decision. Utilizing this scoring system, use of the DDST-S was able to identify low scorers (those scoring less than 70) on the Stanford-Binet (sensitivity = .67, specificity = .95, predictive value = .54, underreferral = 2.5%, overreferral = 4%) as well as the complete DDST. Low scoring children could thus be identified in less than half the time required by the complete DDST. A two-stage DDST-S and DDST procedure was found to have even greater predictive value (76%; 100% if borderline cases [score of 70 to 80] are considered positive) than either form alone.

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