Elderly participants - correlation coefficients for the set of tasks and the set of valid trials.

Leftmost columns: Pearson r between the execution time T and the algorithmic indexes. All correlations are significant at p = 0.01. Bold: best match. Rightmost columns: significance of the differences of correlation coefficients of pairs of indexes. t-values computed with Equation 1. Confidence levels: *: p = 0.05; **: p = 0.01; ***: p = 0.001.