Which of these statements about variables is true?
A) A variable must always be very concrete and straightforward.
B) A variable must always be as abstract as possible.
C) Research is often designed to discover how variables influence each other.
D) Only two variables may be included in any particular study.

Question

Quizplus · Accepted Answer

Research in many fields is designed to examine how variables relate to or influence one another. This often involves the manipulation of one variable while holding others constant to see how changes in one variable affect another variable. Therefore, option C is the correct answer. Option A and B are incorrect because variables can be concrete or abstract depending on the research question being asked. Option D is also incorrect because studies can include more than two variables.

Which of These Statements About Variables Is True