You take the sum of the cross-products of Z scores and divide it by the number of people in the study. You are figuring:
A)the Pearson correlation coefficient
B)the proportionate reduction in error
C)Kendall's tau coefficient
D)the raw scores

Question

Quizplus · Accepted Answer

This is the formula for calculating the Pearson correlation coefficient, which measures the strength and direction of the linear relationship between two variables. The cross-products of Z scores are used to standardize the data and ensure that the correlation is not affected by differences in scale or units. The resulting coefficient ranges from -1 to +1, with higher values indicating a stronger positive or negative correlation, while a zero value suggests no association between the variables.

You Take the Sum of the Cross-Products of Z Scores