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Table 1 Cognitive domains of interest, tests performed and outcome of interest

From: Smoking in pregnancy, adolescent mental health and cognitive performance in young adult offspring: results from a matched sample within a Finnish cohort

Cognitive domain

Cognitive test

Outcome measure

Verbal skills

Vocabulary component of WAIS-3

Z-transformed score

Non-verbal skills

Matrix reasoning component of WAIS-3

Z-transformed score

Learning and memory

Paired Associates Learning from CANTAB battery

Z-transformed inverse of total errors (adjusted)

Executive functioning/cognitive flexibility

Semantic Fluency

Z-transformed number of words named

Fine motor skills

Grooved Pegboard test with dominant hand

Z-transformed inverse of time taken to complete

Processing speed

Stroop test

Z-transformed inverse of time taken to complete

Response inhibition/impulse control

Modified Stop Signal Test from CANTAB battery

Z-transformed inverse of stop signal reaction time

  1. WAIS-3 Wechsler Adult Intelligence Scale, version 3
  2. CANTAB Cambridge Neuropsychological Test Automated Battery