Interpret each of the following correlations for (a) statistical significance, (b) proportion of variance accounted for, and (c) conceptual interpretation.
1. A correlation of .41 (p = .007) between age and height in grade school girls.
2. A correlation of .32 (p = .074) between rank on a depression scale and rank order of activity level on the ward in a group of hospitalized psychiatric patients.
3. A correlation of .20 (p = .04) between two different measures of assertiveness.
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