Students were divided into two groups.Students in one group were ignored when they talked without raising their hands.Students in the other group were attended to in the teacher's usual manner.The independent variable in this experiment was _____.
A)initial levels of talking
B)decreased talking
C)attention from the teacher
D)scores on student tests

Question

Quizplus · Accepted Answer

The independent variable is the factor that is manipulated or changed in an experiment to see if it has an effect on some other variable. In this case, the manipulation is the difference in how the teacher responds to students talking without raising their hands—either by ignoring them or attending to them in the usual manner. This manipulation (attention from the teacher) is what defines the independent variable.

Students Were Divided into Two Groups