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Table 2 Principal components analysis for the cognitive subtests

From: Patterns of cognitive function in middle-aged and elderly Chinese adults—findings from the EMCOA study

Cognitive subtest Components
Verbal memory Attention/processing speed/executive function Cognitive flexibility
AVLT-IR 0.859348 0.1786355 −0.02420138
AVLT-SR 0.925347 0.1656561 0.013152043
AVLT-LR 0.919844 0.1586545 0.007458428
SDMT 0.268641 0.6900593 0.107590145
DSF 0.056095 0.5391598 −0.48831854
DSB 0.256134 0.5315925 −0.36294081
TMT-A 0.09689 0.7970535 0.091785669
TMT-B 0.110346 0.7881209 0.142030366
LMT-IR 0.427479 0.5010345 −0.13808383
SCWT-IT 0.042578 0.2260081 0.759748898
  1. Bold entries indicate measures with high loadings on each factor
  2. AVLT-IR Auditory Verbal Learning Test—immediate recall, AVLT-LR Auditory Verbal Learning Test—long recall, AVLT-SR Auditory Verbal Learning Test—short recall, DSB digit span backwards, DSF digit span forwards, SCWT-IT Stroop Color-Word Test Interference Trial, SDMT Symbol Digit Modalities Test, TMT Trail Making Test, LMT-IR Logical Memory Test—immediate recall