Concurrent and Construct Validity of the Diagnoform<sup>®</sup> Kid Physical Fitness Test Battery in Primary School Children.

Agility showed moderate correlations in the younger groups (6–7 years: r s = −0.67 and 8–9 years: r s = −0.45; both p < 0.001), whereas in the 10–11 years group, the correlation was weak and showed only a trend toward significance ( r s = −0.23; p = 0.094; Figure 2 D–F).

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