A correlation coefficient is a(n)________ and mathematically ranges between ________.
A) effect size; .30 and .40
B) probability; 1 and 100
C) effect size; -1 and +1
D) significance test; zero and infinity

Question

Quizplus · Accepted Answer

A correlation coefficient measures the degree of association between two variables and ranges from -1 (perfect negative correlation) to +1 (perfect positive correlation). Therefore, the best choice is C as it accurately describes the mathematical range of a correlation coefficient. Option A is incorrect because effect size can refer to other statistics besides correlation and the given range is not accurate. Option B is incorrect because probability is not the same as a correlation coefficient. Option D is incorrect because a significance test does not measure association and the given range is not accurate.

A Correlation Coefficient Is A(n)________ and Mathematically Ranges Between ________

A Correlation Coefficient Is A(n) and Mathematically Ranges Between