A researcher tests the hypothesis that students who study in the room where they take their tests will perform better on the tests than students who study in other rooms.She requires one group to study in the classroom where the exam is given and another group to study in the library.All students take the test in the classroom,and their test performance is compared.In this example,where students study is the:
A)independent variable.
B)dependent variable.
C)manipulation.
D)hypothesis.

Question

Quizplus · Accepted Answer

The independent variable is the variable that is manipulated or changed by the researcher to determine its effect on the dependent variable, which is the variable that is being measured. In this case, the researcher is manipulating where students study (in the classroom vs. library) to see if it affects their test performance. Therefore, "where students study" is the independent variable.

A Researcher Tests the Hypothesis That Students Who Study in the Room