A research article you are reading reports the r values of various statistical results. You quickly know that this research must be a(n) __________ investigation.
A) experimental
B) double-blind
C) correlational
D) confounded

Question

Quizplus · Accepted Answer

The mention of r values indicates that the research is reporting correlations between variables, therefore it is a correlational investigation. Option A) experimental investigation involves manipulation of an independent variable to observe its effect on a dependent variable, which is not necessarily the case here. Option B) double-blind investigation involves neither manipulation nor measuring the correlation between variables, and option D) confounded investigation refers to situations where extraneous variables may have influenced the results, which cannot be determined solely based on the mention of r values.

A Research Article You Are Reading Reports the R Values