The 1958 National Child Development Study (NCDS) assessed their cohort members (CMs) during the study’s age 50 sweep using the Verbal Fluency (Animal Naming) Test.
Details on this measure and the data collected from the CMs are outlined in the table below.
| Year of data collection: | 2008 |
| Domain: | Verbal (fluency) |
| Measures: | Verbal/semantic fluency |
| Executive function | |
| CHC: | Glr (Long-term storage and retrieval) |
| CLOSER Source: | Explore this sweep in CLOSER Discovery: NCDS Age 50 Survey (2008) (opens in a new tab) |
| Administration method: | Trained interviewer; computer-assisted personal interview (CAPI) |
| Procedure: | Participants were asked to name as many different animals as possible within a one-minute timeframe. The interviewer made a note of each named animal and entered the total number into the CAPI programme. Repetitions, named animals (e.g. Bambi), and redundancies (e.g. white cat, black cat) were not included in the total score. |
| Link to questionnaire: | https://cls.ucl.ac.uk/wp-content/uploads/2017/07/NCDS_8_FINAL_MAINSTAGE_DOCUMENTATION.pdf (opens in new tab) |
| Scoring: | Total number of animals named |
| Item-level variable(s): | None |
| Total score/derived variable(s): | N8CFANIT -– N8CFANI Explore these variables in CLOSER Discovery: NCDS8 CAI Questionnaire (2008) Dataset (opens in a new tab) |
| Descriptives: | Raw score |
| N = 9,648 | |
| Range = 0 - 65 | |
| Mean = 22.28 | |
| SD = 6.30 | |
(click image to enlarge) |
|
| Age of participants (months): | Mean = 608.27, SD = 1.92, Range = 598-614 |
| Other sweep and/or cohort: | NCDS – Age 61-63 – Proposed repeat of tests at age 50 |
| NSHD – Age 53 – Verbal Fluency (Animal Naming) Test | |
| BCS70 – Age 46-47 – Verbal Fluency (Animal Naming) Test | |
| ALSPAC – Focus on Mothers 2 – Verbal Fluency Test | |
| ALSPAC – Focus on Mothers 3 – Verbal Fluency Test | |
| ALSPAC – Focus on Mothers 4 – Verbal Fluency Test | |
| Source: | Taken from Section B (cognitive assessment) of the Cambridge Mental Disorders of the Elderly Examination (CAMDEX) (Roth et al., 1986). Cognitive measures at this sweep were taken from the 2002 English Longitudinal Study of Ageing (ELSA; Taylor et al., 2007). |
| Technical resources: | Brown, M., & Dodgeon, B. (2010). NCDS cognitive assessments at age 50: initial results. London: Centre for Longitudinal Studies. |
| Example articles: | Dregan, A., & Gulliford, M. C. (2013). Leisure-time physical activity over the life course and cognitive functioning in late mid-adult years: a cohort-based investigation. Psychological Medicine, 43(11), 2447-2458. |
| Bowling, A., Pikhartova, J., & Dodgeon, B. (2016). Is mid-life social participation associated with cognitive function at age 50? Results from the British National Child Development Study (NCDS). BMC Psychology, 4(1), 58. |
For the named items in the table above, links are provided (where applicable) to their corresponding content on CLOSER Discovery. Where a variable range is provided, full variable lists can be accessed through the ‘Variable Groups’ tab on the linked Discovery page.
Go to:
- Overview of all cognitive measures in NCDS
- Overview of adulthood cognitive measures across all studies
This page is part of CLOSER’s ‘A guide to the cognitive measures in five British birth cohort studies’.