BCS70 – 42 months – Developmental Milestones

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The 1970 British Cohort Study (BCS70) assessed their cohort members (CMs) during the study’s sweep at 42 months age using the Developmental Milestones measures.

Details on these measures and the data collected from the CMs are outlined in the table below.


Domain:Developmental milestones
Measures:Gross motor coordination
Speech and language
Copying designs
Drawing a man
CHC:None
Administrative method:In clinic, questionnaire completed by a doctor
Procedure:The child was asked to perform certain tasks, for example copying designs using cubes, point to pictures, balance (gross-motor), and draw shapes and a man. The doctor recorded whether the task was observed.
Link to questionnaire:No direct link available
Scoring:No referenced example (see 'Technical resources' below)
Item-level variable(s):c0040 - c0047e (cube task)
c0048a - c0051b (speech and language)
c0052 - c0056 (drawing)
c0057a - c0059 (paper and folding)
c0060 - c0061 (parts of body)
c0062a - c0065 (gross-motor)
Total score/derived variable(s):None
Age of participant:42 months
Descriptives:See user guide pp. 207-220
Other sweep and/or cohort:BCS70 – 22 month – Developmental Milestones (similar)
Source:See 'Technical resources' below
Technical resources:Chamberlain, R., & Davey, A. (1976). Cross-sectional study of developmental test items in children aged 94 to 97 weeks: Report of the British Births Child Study. Developmental Medicine & Child Neurology, 18(1), 54-70.
Reference examples:Feinstein, L. (2003). Inequality in the early cognitive development of British children in the 1970 cohort. Economica, 70(277), 73-97.
Duncan, G. J., Dowsett, C. J., Claessens, A., Magnuson, K., Huston, A. C., Klebanov, P.... & Sexton, H. (2007). School readiness and later achievement. Developmental Psychology, 43(6), 1428.

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This page is part of CLOSER’s ‘A guide to the cognitive measures in five British birth cohort studies’.