Research Article

Letter and Colour Matching Tasks: Parametric Measures of Developmental Working Memory Capacity

Table 2

Pair sample -tests of WM scores across grade and WM capacity task.

testAge group (years)CMT-SimpleCMT-Complex

Visuospatial7-82.43 2.83
9-104.92 4.12
11-125.38=4.86
13-146.05=5.50
15-166.64=6.80
18+6.88=7.19

LMT-SimpleLMT-Complex

Verbal7-82.36 =2.77
9-103.16=3.24
11-124.86=4.67
13-144.735.32
15-165.966.48
18+6.31=6.73

CMT-SimpleLMT-Simple

Simple7-82.50=2.36
9-104.923.16
11-125.38=4.86
13-146.054.73
15-166.645.96
18+6.886.31

CMT-ComplexLMT-Complex

Complex7-82.86=2.77
9-104.123.24
11-124.86=4.67
13-145.50=5.32
15-166.80=6.48
18+7.19=6.73

Note. = 0.05. Equivalence tests were computed using paired sample -tests and pairwise exclusions; =: equivalent; : not equivalent.