To be effective,the manipulation of the independent variable in a laboratory experiment
Needs to be
A)weak enough so that participants are not aware of it.
B)strong enough so that participants are aware of it.
C)strong enough so that participants guess the study's hypothesis.
D)described verbally to the participants.

Question

Quizplus · Accepted Answer

The manipulation of the independent variable needs to be strong enough so that participants are aware of it. This is important to create a clear contrast between the experimental and control conditions, and to increase the likelihood of detecting a significant effect of the independent variable. However, the manipulation should not be so strong that it overwhelms other factors that may affect the dependent variable, and it should not be confounded with other variables that are not part of the experimental design. The goal is to create a controlled and systematic variation in the independent variable that can be reliably measured and compared across groups or conditions.

To Be Effective,the Manipulation of the Independent Variable in a Laboratory