Question: For educators in the workshop determine whether initial knowledge test marks is related to composite performance indicator marks based on the Pearson correlation, r .

For educators in the workshop determine whether initial knowledge test marks is related to composite performance indicator marks based on the Pearson correlation, r. What proportion of the variance in composite performance indicator marks is predictable from initial knowledge test marks (coefficient of determination: square of r)? How would you describe the effect size: is it small, medium, or large?

To answer the questions, obtain the Pearson correlation, r, between each of the three variables, initial knowledge test, composite performance indicator, and knowledge test given as posttest, and the long-term composite performance indicator marks. Use the significance test of r to determine if any of them are statistically significant.

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