Similarity in cognitive ability measurement at age 10-11

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Explore where selected cohorts overlapped in their assessment of cognitive abilities at the ages of 10 to 11.

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

Ability domainNSHD (Age 11)NCDS (Age 11)BCS70 (Age 10)ALSPAC (Age 10*/11)MCS (Age 11)
Gc (Crystallised ability)General ability (NFER) Verbal TestGeneral ability (NFER) Verbal TestPictorial Language Comprehension Test (PLCT)Verbal similarities (BAS II)
Vocabulary(Word) Similarities (BAS)
Word Definitions (BAS)
Gc/Grw (Crystallised ability/ Reading & writing)Word ReadingReading Comprehension test (NFER)Edinburgh Reading Test (ERT)
Spelling Dictation Task (SDT)
Gf (Fluid ability)General ability (NFER) Non-Verbal TestGeneral ability (NFER) Non-verbal TestMatrices (BAS)Higher Conceptual Reasoning (Bike Drawing)
Gsm (Working memory)Recall of Digits (BAS)Working Memory (Counting Span Task)* (TEACh) – Sky task and Dividing Attention: Dual TaskSpatial working memory (CANTAB)
Gq (Quantitative knowledge)Arithmetic Test (NFER)Mathematics TestFriendly Maths Test (ERT)
Gv (Visual processing)Copying Designs Test (CDT)
Gt (Decision speed)Inhibition (Stop Signal Task)*Cambridge Gambling Task (CANTAB)
Gs (Processing speed)(TEACh) – Attentional control: Opposite Worlds

Additional detail on the individual measures is available in the childhood cognition section of this guide.

Explanations of the ability domains are provided in the introductory section.


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

Explore the full set of cognitive abilities assessed by each of the cohort studies in this guide:


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