In a correlation matrix:
A) A table of correlation coefficients shows how all the variables are related to each other
B) A diagonal separates negative from positive correlation coefficients
C) Critical values of a correlation coefficient must exceed .7 to be statistically significant
D) Effect sizes cannot be obtained

Question

Quizplus · Accepted Answer

A correlation matrix displays the correlation coefficients between all pairs of variables in a data set. The coefficients range between -1 to 1, where -1 is a perfect negative correlation, 1 is a perfect positive correlation, and 0 is no correlation. The table does not separate negative from positive correlation coefficients as they both appear together in the table. The critical values of a correlation coefficient depend on the sample size and level of significance and may vary depending on the specific research question. Effect sizes can be obtained from a correlation matrix.

In a Correlation Matrix