Dr. Simmons 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 the researcher manipulates or changes in order to observe its effect on the dependent variable. In this case, the independent variable is the location where students study (classroom vs. library), and the dependent variable is the students' test performance. The manipulation would refer to any changes made by the researcher to the independent variable in order to test the hypothesis. The hypothesis is the statement being tested by the study.

Dr Simmons Tests the Hypothesis That Students Who Study in the Room