The Avon Longitudinal Study of Parents and Children (ALSPAC) assessed their cohort members (CMs) during the study’s age 8.5 sweep (Focus@8) using the Oral Expression measure from the Wechsler Objective Language Dimensions (WOLD).
Details on this measure and the data collected from the CMs, are outlined in the table below.
|Measures:||Use of non imitative expressive language|
|CHC:||Crystallised intelligence (Gc)|
|Administration method:||Trained interviewer; clinical setting; oral answers|
|Procedure:||The WOLD has two subtests that measure expressive language, both of which were administered at age 8. In the first test, the child was shown a series of pictures and asked to describe them, with responses coded correct or incorrect|
|The second part of the subtest consisted of three tasks:|
|i. The child was presented with a picture of a scene, and asked to describe the scene to someone who has not and cannot see the picture.|
|ii. The child was shown a map, and asked to give directions (shortest route possible) from one location to another|
|iii. They were tasked with explaining the process of putting batteries into a torch using a series of picture-based instructions.|
|Link to questionnaire:||http://www.bristol.ac.uk/alspac/researchers/our-data/clinical-measures/ (opens in new tab)|
|Scoring:||Responses were taped and coded for relevance, accuracy and logic (ongoing at the time of writing; only responses to the first sub-test were available).|
|Item-level variable(s):||f8sl050 - f8sl076|
|Total score/derived variable(s):||None|
|Descriptives:||Not available at time of writing|
|Age of participants:||Mean = 103.82 months, SD = 3.92, Range = 89 - 127|
|Other sweep and/or cohort:||None|
|Source:||Rust, J. (1996). The manual of the Wechsler Objective Language Dimensions (WOLD) UK Edition. London: The Psychological Corporation.|
|Reference examples:||Taylor, A. E., Guthrie, P. A., Smith, G. D., Golding, J., Sattar, N., Hingorani, A. D., ... & Day, I. N. (2011). IQ, educational attainment, memory and plasma lipids: associations with apolipoprotein E genotype in 5995 children. Biological Psychiatry, 70(2), 152-158.|
|Hameed, M. A., Lewis, A. J., Sullivan, S., & Zammit, S. (2013). Child literacy and psychotic experiences in early adolescence: findings from the ALSPAC study. Schizophrenia Research, 145(1-3), 88-94.|
- Overview of all cognitive measures in ALSPAC
- 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’.