Table 4.

Correlations of age-standardized scores: Working Memory capacity (k), Meta-Memory Inaccuracy by Age Group, and Auxiliary Measures

	Running Span	Letter Span	Raven’s	k	Meta inaccuracy (absolute)
Experiment 1
Running Span	–
Letter Span	.14	–
Raven’s	.26**	.27**	–
k	.26**	.37***	.18	–
Meta inaccuracy (absolute)	−.16	−.19*	−.20*	−.51***	–
Meta inaccuracy (raw)	−.14	−.20*	−.19*	−.56***	.91***
Experiment 2
Running Span	–
Letter Span	.26*	–
Raven’s	.44***	.41***	–
k	.33**	.37***	.27*	–
Meta inaccuracy (absolute)	−.19	−.21*	−.19	−.69***	–
Meta inaccuracy (raw)	−.22*	−.21*	−.19	−.72***	.98***

Note. Correlations (Pearson’s r) between age-standardized Working Memory capacity (k), meta-memory inaccuracy, and auxiliary scores.

^*p < 0.05

^**p < 0.01

^***p < 0.001. Meta inaccuracy (absolute) measures the absolute distance between each participant’s meta-WM rating and their actual k, regardless of whether inaccuracy was driven by under- or overestimating one’s memory. Meta inaccuracy (raw) accounts for the direction of the inaccuracy, i.e., whether inaccuracy was driven by under- or overestimation).