A researcher who wants to find out if a statistical relationship exists between variables should use a(n)
A) questionnaire.
B) correlation.
C) experiment.
D) case study.

Question

Quizplus · Accepted Answer

A correlation is the best choice when trying to determine if a statistical relationship exists between variables. A questionnaire is a tool for collecting data, but does not determine statistical relationships. An experiment involves manipulating variables, which is not necessary if the researcher just wants to determine if a relationship exists. A case study involves in-depth analysis of a particular case, but does not necessarily involve determining statistical relationships between variables.

A Researcher Who Wants to Find Out If a Statistical