Question: with pretest experimental being 5,5,4,4,2 and post test experimental being 5,5,5,4,1 and pretest control being 5,5,3,2,1,and post test control being 5,5,3,2,1 Calculate the correlation coefficient

with pretest experimental being 5,5,4,4,2 and post test experimental being 5,5,5,4,1 and pretest control being 5,5,3,2,1,and post test control being 5,5,3,2,1 Calculate the correlation coefficient (r) using the formula: r = [(xi - x)(yi - )] / sqrt[((xi - x)^2)((yi - )^2)]. Here, xi and yi are the individual pretest and posttest scores, and x and are the means of the pretest and posttest scores

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