A researcher computing the r between age and memory span might:
A) be able to show that old age produces a decrease in memory span
B) be able to predict memory span based on age
C) make an error because age and memory span are on different scales
D) be able to show the effects of age on memory span

Question

Quizplus · Accepted Answer

Computing the correlation coefficient (r) between age and memory span allows the researcher to predict memory span based on age by indicating how strongly these two variables are related. It does not, however, establish causation or account for different scales directly.

A Researcher Computing the R Between Age and Memory Span