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. Author manuscript; available in PMC: 2009 Apr 27.
Published in final edited form as: Cogn Psychol. 2005 Mar 2;51(1):42–100. doi: 10.1016/j.cogpsych.2004.12.001

Table 10.

Experiment 2, Proportions of Within-Age Variance in g, By Types of WM Measure in Younger and Older Participants

Measures Grades 2 & 4 Grade 6 & Adult
(n = 65) (n = 62)
Storage and Processing 0.15* 0.15*
Scope of Attention 0.14* 0.11*
Digit Span 0.14* 0.01
All WM Measures 0.24* 0.17*

Note. Storage-and-processing measures include counting and listening spans; scope-of-attention measures include running span, auditory sequences, and visual arrays. Within-age variance in g refers to a partial R2 after age group variance is removed.