Cognitive abilities measured in the 1946 National Survey of Health and Development ShareThis

Explore what cognitive ability domains were measured in the 1946 National Survey of Health and Development (NSHD) cohort by age and test used.

For background guidance on the table below, see the main harmonisation feasibility page in this guide.

Test8 yrs11 yrs15 yrs26 yrs43 yrs53 yrs60-64 yrs68-70 yrs
Reading ComprehensionGc/Grw
Word ReadingGrwGrw
Picture IntelligenceGf
General Ability Test (verbal and non-verbal)G/Gc/Gf
Arithmetic TestGq
Alice Heim Group Ability TestG/Gc/Gf
Watts-Vernon Reading TestGc/GrwGc/Grw
Mathematics TestGq
Verbal Learning/Word List RecallGlrGlrGlrGlr
Long Term RecallGlr
Visual MemoryGlr/Gv
Timed Letter Search/Letter CancellationGv/GsGv/GsGv/GsGv/Gs
Motor Speed and PraxisGp
National Adult Reading Test (NART)Gc/Grw
Verbal Fluency (animal naming)Glr
Prospective MemoryNA
Delayed Verbal MemoryGlr
Reaction Time TestGt
Finger Tapping TestGp
Addenbrooke’s Cognitive Examination (5 domains)G


Gf=Fluid reasoning/fluid intelligence; Glr=Long-term storage & retrieval; Gs=Processing speed; Gc=Acquired knowledge/crystallised intelligence; Grw=Reading and writing; Gq=Quantitative knowledge; Gv=Visual processing; Gp=Psychomotor ability; G=General/multi-domain cognitive ability factor; NA=Not applicable (no Cattell-Horn-Carroll ability type measured).

Explanations of the individual ability domains are provided in the introductory section of this guide.

Find out more about each of the cognitive tests administered to the NSHD cohort in our searchable overview of measures.

Explore what cognitive abilities have been measured by the other cohort studies in this guide:

Explore where similar cognitive abilities have been measured across the studies at different ages:

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