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The DAYC is a battery of five subtests that measure different but interrelated abilities. The battery, which is designed for use with children ages birth through 5.11 years, was created to measure the five areas of assessment mandated by IDEA: cognition, communication, social/emotional development, physical development, and adaptive behavior. The five subtests (one for each of the domains) can be administered separately or as a comprehensive battery in about 10-20 minutes.

The DAYC can be used (a) to differentiate children who are developing normally from those who are significantly below their peers in cognitive, communication, social/emotional, physical, or adaptive behavior; (b) to determine a child’s specific strengths and weaknesses in developmental abilities; (c) to document a child’s developmental progress as a consequence of special intervention programs; and (d) to measure developmental abilities in research studies.

The DAYC format allows you to obtain information about a child’s abilities through observation, interview of caregivers, and direct assessment.

The DAYC was normed on a national sample of 1,269 individuals, broken into 23 age groups. The reliability of the DAYC has been studied, and evidence relating to content-sampling and test-retest time sampling reliability is provided. Reliability coefficients range from .90 to .99. Standard errors of measurement (SEMs) range from 1.5 to 4.74, with the majority smaller than 3.0. Reliabilities for children identified as environmentally at-risk and biologically at-risk are .98 and .99.

COMPONENTS:

DAYC Examiner’s Manual, 25 each of Adaptive, Cognitive, Communication, Physical, and Social/Emotional Domain Scoring Forms, 25 Profile/Summary Forms, and 25 Early Childhood Developmental Chart, 2nd Ed. Mini Posters, all in a sturdy storage box