A correlation exists when
A)two hypotheses are shown to support the same theory.
B)two independent variables are confounded.
C)a measurement is both reliable and valid.
D)two measures of the same people,events,or things vary together.

Question

Quizplus · Accepted Answer

Correlation refers to a statistical relationship between two variables, where changes in one variable are associated with changes in another variable. When two measures of the same people, events, or things vary together, it indicates that there is a correlation between them. Therefore, option D is the correct choice. Option A refers to support for a theory, not correlation. Option B refers to confounding, not correlation. Option C refers to measurement properties, not correlation.

A Correlation Exists When