Weschler Intelligence Scales for Children - Revised (New York The Psychological Corporation). Not available (see technical resources on deriving scores)ĪLSPAC – Age 4 – Short-Term Memory (Digit Span Test)ĪLSPAC – Age 5 – Short-Term Memory (Digit Span Test) In both parts, the length of the sequence of numbers increased as the child responds correctly. The child then listened to sequences of numbers read out by the interviewer and repeated them in reverse order. The interviewer read out digits (from 3 to 9), the child listened and repeated the sequence of numbers read out. Details on this measure as applied to the NCDS sub-sample and the data collected are outlined in the table below.Ĭonsists of 28 items: 14 forward and 14 backward. The WISC-R Digit Span Subscale is intended for administration with children aged 7 years or older. Time at start and completion (24 hour clock) was calculated using the following variables: n520128 n520130 n521935 n521937. Prior to administering these tests, the interviewer calculated the Peabody Picture Vocabulary Test (PPVT) age of the child (actual age rounded up or down to the nearest whole month) to establish, if the child was eligible for testing, which tests would be administered and, for some tests, the appropriate starting point of the test. These tests were developed in the US and a number of changes (mainly substituting terminology) were made to individual assessments for use in the NCDS. The tests were based on those used by the US National Longitudinal Survey of Youth (NLSY) for their 1990 survey of the children of female respondents. Some 3,575 (71 percent) of the cohort children identified were eligible for the Child Interview. The child assessments included in the NCDS5 Child Interview (conducted when the CM was aged 33) applied only to the natural or adopted children of CMs aged 3 years, 11 months, and 16 days or older. The 1958 National Child Development Study (NCDS) assessed the children of a sub-sample of cohort members (CMs) using the Weschler Intelligence Scale for Children-Revised (WISC-R): Digit Span Subscale.
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