The MRC National Survey of Health of Development (NSHD) assessed their cohort members (CMs) during the study’s age 8 sweep using the Picture Intelligence measure.
Details on this measure and the data collected from the CMs are outlined in the table below.
|General sequential reasoning|
|CHC:||Gf (Fluid intelligence)|
|Administration method:||Teacher/psychologist/trained individual; face to face; pen and paper|
|Procedure:||This test was comprised of three sections. In section 1, participants were presented with 15 series, each consisting of 5 images (4 of which were conceptually similar), and were asked to select the ‘odd one out’. Section 2 consisted of 20 incomplete picture series, and participants were instructed to select, from 5 different options, the correct picture to complete each series. Section 3 included 25 conceptual similarity tasks. Participants were asked to choose, from 5 options, a picture that corresponded with an established rule, e.g. “foot is to shoe as head is to hat”. Each section was preceded by a practice trial. The overall testing session at age 8 lasted under 2 hours.|
|Link to questionnaire:||https://skylark.ucl.ac.uk/NSHD/lib/exe/fetch.php?media=questionnaires:1954_sm_nf2.pdf (opens in new tab)|
|Scoring:||One point awarded per correct answer (0 - 60)|
|Item-level variable(s):||Not currently available|
|Total score/derived variable(s):||PI8R, PI8R54, PI854, PI8N|
|Descriptives:||Raw score||Normalised score|
|N = 4,266||N = 4,266|
|Range = 0 - 60||Range = 54 - 152|
|Mean = 40.20||Mean = 101.64|
|SD = 9.48||SD = 15.02|
|(click image to enlarge)||(click image to enlarge)
|Age of participants:||8 years 6 months|
|Other sweep and/or cohort:||None|
|Source:||Pigeon DA. Tests used in the 1954 and 1957 surveys. In: Douglas JWB, ed. The home and the school. London: MacGibbon and Kee, 1964. (Appendix 1.)|
|Reference examples:||Richards, M., Hardy, R., Kuh, D., & Wadsworth, M. E. (2001). Birth weight and cognitive function in the British 1946 birth cohort: longitudinal population based study. BMJ, 322(7280), 199-203.|
|Kuh, D., Richards, M., Hardy, R., Butterworth, S., & Wadsworth, M. E. (2004). Childhood cognitive ability and deaths up until middle age: a post-war birth cohort study. International Journal of Epidemiology, 33(2), 408-413.|
- Overview of all cognitive measures in NSHD
- Overview of childhood cognitive measures across all studies
This page is part of CLOSER’s ‘A guide to the cognitive measures in five British birth cohort studies’.