_________ variables are not controlled for in the experiment but may have an influence on the dependent variable because they vary with the levels of the independent variables.
A)Extraneous
B)Nuisance
C)Attrition
D)History

Question

Quizplus · Accepted Answer

Extraneous variables are those that are not manipulated or controlled for in the experiment, but may still have an effect on the dependent variable. They often vary along with the levels of the independent variable and can affect the validity of the results. Nuisance variables are similar, but typically refer to variables that are not of primary interest in the study, but still need to be controlled for due to their potential influence on the outcome. Attrition refers to the loss of participants from the study, and history refers to any external events that may affect the results of the study.

_________ Variables Are Not Controlled for in the Experiment but May