Similarity in cognitive ability measurement at age 7-8
Explore where selected cohorts overlapped in their assessment of cognitive abilities at the ages of 7 to 8.
For background guidance on the table below, see the main harmonisation feasibility page in this guide.
Ability domain | NSHD (Age 8) | NCDS (Age 7) | ALSPAC (Age 7.5) | ALSPAC (Age 8.5) | MCS (Age 7) |
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Gf (Fluid ability) | Picture Intelligence | Wechsler Intelligence Scale for Children (WISC-III)
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Gc (Crystallised ability) | Vocabulary | Wechsler Intelligence Scale for Children (WISC-III)
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Listening Comprehension | |||||
Oral Expression | |||||
Gc/Gf (Crystallised ability/ Fluid ability) | Wechsler Intelligence Scale for Children (WISC-III)
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Gc/Grw (Crystallised ability/ Reading & writing) | Reading Comprehension | Southgate Group Reading Test | Basic Reading | BAS II Word Reading | |
Phoneme Deletion Task | |||||
Grw (Reading & writing) | Word Reading | Spelling Task | |||
Gq (Quantitative knowledge) | Problem Arithmetic Test | Wechsler Intelligence Scale for Children (WISC-III)
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NFER Progress in Maths (adapted) | ||
Gv (Visual processing) | Copying Designs Test | BAS II Pattern Construction | |||
Human Figure Drawing | |||||
Gs/Gv (Processing speed/ Visual processing) | Letter Decision Task | Wechsler Intelligence Scale for Children (WISC-III)
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Wechsler Intelligence Scale for Children (WISC-III)
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TEACh (the Tests of Everyday Attention for Children)
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Gp (Psychomotor ability) | Motor Ability Task | ||||
Gkn (Domain-specific knowledge) | DANVA: Faces subtest | ||||
Gsm (Short-term memory) | TEACh (the Tests of Everyday Attention for Children):
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Nonword Repetition | |||||
Glr (Long-term storage & retrieval) | Listening Comprehension | ||||
Ga (Auditory processing) | Articulatory Skills |
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.