Table 4 Tests administered for the cognitive battery.

From: Enhanced physical and cognitive performance in active duty Airmen: evidence from a randomized multimodal physical fitness and nutritional intervention

Cognitive domain

Brief description

Short term memory

Immediate free recall (IFR) words

Recall as many previously seen words as possible

Immediate free recall (IFR) pictures

Recall as many previously seen pictures as possible

Keep track

Recall the last instance of a given category from a previously seen set of words

Episodic memory

Paired associates (PA) immediate recall

Given one word from a pair of words previously seen, recall the other word immediately

Paired associates (PA) delayed recall

Given one word from a pair of words previously seen, recall the other word after a delay

Fluid Intelligence

Number series accuracy (Acc)

Identify the pattern of numbers

Letter series accuracy (Acc)

Identify the pattern of letters

Working memory

Symmetry span

Hold items in memory while checking symmetry in a matrix

Rotation span

Hold items in memory while rotating letters

Executive function

Stroop congruent accuracy (Acc)

Determine if the font color and word color match

Stroop incongruent accuracy (Acc)

Determine if the font color and word color mismatch

Processing efficiency

Symbol digit modalities

Use a lookup table to translate symbols into numbers

Reaction time (RT)

Number series, letter series, stroop congruent and incongruent

The amount of time to respond to each item

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