NCDS cohort members' child (multi-age, 1991)
The child assessments included in the NCDS5 Child Interview (conducted when the Cohort Member (CM) was aged 33) applied only to the natural or adopted children of CMs aged 3 years, 11 months, and 16 days or older. Some 3,575 (71%) of the CMs’ children identified were eligible for the Child Interview.
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. 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.
Prior to administering all of 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.
Time at start and completion (24-hour clock) was calculated using the following variables: n520128 n520130 n521935 n521937.
- Peabody Picture Vocabulary Test Revised (PPVT-R)
- Peabody Individual Achievement Test (PIAT)
- McCarthy Scale of Children’s Abilities
- Verbal Memory Subscale (intended for respondents aged 3 – 6 years 11 months)
- Wechsler Intelligence Scale for Children-Revised (WISC-R)
- Digit Span Subscale (intended for respondents aged 7 years and older)