A causal relationship can be tested using ______.
A) correlational research
B) experimental research
C) diagnostic research
D) analytical research

Question

Quizplus · Accepted Answer

A causal relationship can only be tested through experimental research, where researchers manipulate one variable and measure the effect on another variable while controlling for all other variables. Correlational research can only show a relationship between two variables, but cannot determine causation. Diagnostic and analytical research may be used in conjunction with experimental research but are not sufficient on their own to test causal relationships.

A Causal Relationship Can Be Tested Using ______