The 1970 British Cohort Study (BCS70) assessed their cohort members (CMs) during the study’s age 10 sweep using the Word Similarities measure from the British Ability Scales (BAS).
Details on this measure and the data collected from the CMs are outlined in the table below.
| Year of data collection: | 1980 |
| Domain: | Verbal (reasoning) |
| Measures: | (Acquired) verbal knowledge and verbal reasoning: |
| Verbal reasoning ability | |
| Expressive language skills, including verbal fluency | |
| Vocabulary knowledge | |
| General knowledge | |
| Abstract and logical thinking | |
| Ability to distinguish between essential and superficial features | |
| CHC: | Gc (Crystallised ability) |
| CLOSER Source: | Explore this sweep in CLOSER Discovery: BCS70 Age 10 Survey (1980) (opens in a new tab) |
| Administrative method: | In schools; pen and paper |
| Procedure: | The test consisted of 21 items made up of 3 words e.g. orange, banana, strawberry. The teacher read the three words and asked the child to name another word consistent with the group (a group example) i.e. another type of fruit. The child then had to say what the words had in common (a group name) i.e. they are all fruits. When the child was unable to name both a group example and group name on four successive attempts the test was stopped. |
| Duration: Total 30 minutes for 4 BAS tests | |
| Link to questionnaire: | https://cls.ucl.ac.uk/wp-content/uploads/2018/06/British-ability-scales-annotated.pdf (opens in new tab) |
| Scoring: | One point for every group example and group name, but zero points if only one was correct, giving a maximum score of 21. |
| Item-level variable(s): | i3575 - i3616 (item response) |
| i4201 - i4221 (group example and group name correct) | |
| Total score/derived variable(s): | None |
| Age of participants (months): | Mean = 121.88, SD = 2.67, Range = 117 - 139 |
| Descriptives: | Raw score |
| N = 11,482 | |
| Range = 0 - 20 | |
| Mean = 12.06 | |
| SD = 2.61 | |
(click image to enlarge) |
|
| Other sweep and/or cohort: | MCS – Age 11 – BAS II Verbal Similarities (the revised (BAS II) version) |
| ALSPAC – Age 4 – WPPSI-RUK Similarities (both verbal and picture similarities) | |
| ALSPAC – Age 8.5 – WISC-III Similarities (verbal similarities asked slightly differently) | |
| Source: | Elliott, C. D., Murray, D. J., & Pearson, L. S. (1979). British Ability Scales. Slough: National Foundation for Educational Research. |
| Elliott, C., Murray, D., & Pearson, L. (1978). British Ability Scales. Windsor: National Foundation for Educational Research. | |
| Technical resources: | Parsons, S. (2014). Childhood cognition in the 1970 British Cohort Study, CLS Working Paper. London: Centre for Longitudinal Studies. (Link opens in a new tab). |
| Example articles: | Case, A., & Paxson, C. (2008). Stature and status: Height, ability, and labor market outcomes. Journal of Political Economy, 116(3), 499-532. |
| Gregg, P., & Macmillan, L. (2010). Family income, education and cognitive ability in the next generation: exploring income gradients in education and test scores for current cohorts of youth. Longitudinal and Life Course Studies, 1(3), 259-280. | |
| Sturgis, P., Read, S., & Allum, N. (2010). Does intelligence foster generalized trust? An empirical test using the UK birth cohort studies. Intelligence, 38(1), 45-54. |
Go to:
- Overview of all cognitive measure in BCS70
- 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’.