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Table 1 Outcome measuresb

From: The longitudinal associations between change in physical activity and cognitive functioning in older adults with chronic illness (es)

Measurement Instrument Concept Measure Scoring/ missing items Scoring range Higher score indicates % valid a
Primary outcome measures
VLT Verbal memory Learning curve ratio (Trial 1 + (Trial 2-Trial 1) + (Trial 3-Trial 2) + (Trial 4-Trial 3) + (Trial 5-Trial 4)) / 5 0–3 words per trial Better learning capacity 98%
  Mean number of recalled words trial 1–5 (Trial 1 + Trial 2 + Trial 3 + Trial 4 + Trial 5) / 5 0–15 words Better short-term verbal memory  
  Number of words recalled in delayed trial   0–15 words Better long-term verbal memory  
TMT Task switching Time to complete part B minus time to complete A in sec   0-∞ sec Worse shifting capacity 96%
SST Inhibition SSRT in ms The SSRT is estimated in accordance with De Jong et al. [42] and Tannock et al. [43]. Negative SSRT values are excluded from the analyses [44]. 0–1500 ms Worse inhibition 90%
LDST Processing speed Number of correct substitutions   0–125 subs Better processing speed 96%
Physical activity
ActiGraph GT3X-BT PA MVPA minutes per week Data downloaded with frequency extension on with ActiLife software [45]. Valid if worn 4 days during 10 h or more [46]. Non-wear definition by algorithm of Choi et al. [47]. PA scoring by Freedson-VM cut-off points [48] and by Aguilar-Fariaz cut-off points [49]. 0–6720 min More MVPA 96%
  LPA minutes per week   0–10,080 min More LPA  
  1. Abbreviations: VLT Verbal learning test, TMT Trail making test, SST Stop-signal task, LDST Letter digit substitution test, PA Physical activity, SSRT Stop-signal reaction time, MVPA Moderate-to-vigorous physical activit, LPA Light physical activity. aTest outcomes were excluded if scores were deemed invalid by test administer when 1) technical problems occurred, 2) participants refused to complete a test or lacked motivation, 3) participants had physical limitations (arm amputated, hearing loss, etc.) or cognitive restrictions (participant is unable to understand the instruction), or 4) participants deviated from the instructions. bDerived from Table 1 in [33]