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Table 8 Study 3 ecological validity

From: The NIH Toolbox Cognitive Battery for intellectual disabilities: three preliminary studies and future directions

  Chronological age Mental age equivalent FSIQ (deviation) Adaptive behavior composite
Dimensional change card sort .31 .72*** .66*** .33
Flanker .27 .61*** .70*** .36*
Picture vocabulary .48** .67*** .70*** .52**
Oral reading .39* .62*** .71*** .42**
Picture sequence memory .34* .55** .57*** .16
Pattern comparison .17 .45* .46** .20
List sorting .57** .49* .52* -.03
NIH-TCB cognitive composite .89*** .42*
  1. Data shown are Pearson’s correlations
  2. NIH-TCB age-adjusted z deviation scores were used to correlate with age-adjusted standardized measures (IQ, adaptive behavior), whereas computed or theta scores (unadjusted) were used for correlations with mental and chronological age
  3. *p < .05; **p < .01; ***p < .001