Two groups of people are given different kinds of practice problems in logic. They are then tested on a set of new problems to determine whether one kind of practice was better than the other. The nature of the practice problems is the ________ variable.
A) uncontrolled
B) independent
C) dependent
D) observed

Question

Quizplus · Accepted Answer

The practice problems given to the two groups are being manipulated by the researchers and are therefore the independent variable. The dependent variable would be the performance on the new test, which is being measured as a result of the manipulation of the independent variable. The term "uncontrolled variable" refers to any variable that may have an effect on the outcome but is not being manipulated or measured in the study. The term "observed variable" refers to any variable that is being directly measured in the study.

Two Groups of People Are Given Different Kinds of Practice