A study is conducted to examine the effect of instruction type on test scores. Participants in the study are asked to complete a simple math test with either time limit instructions (i.e., the participants are told they must complete the test within 3 minutes) or no time limit instructions (i.e., the participants are not given a time limit for the test). Participants are randomly assigned to one of the instruction types. The independent variable in this study is ______.
A) time limit instructions
B) no time limit instructions
C) instruction type
D) not present (i.e., there is no independent variable in this study)

Question

Quizplus · Accepted Answer

The independent variable in the study is instruction type, as this is what is being manipulated and randomly assigned to participants. The two levels of the independent variable are time limit instructions and no time limit instructions.

A Study Is Conducted to Examine the Effect of Instruction