When a researcher can make strong conclusions that the independent variable caused changes in the dependent variable,the study has high ________.
A) complexity
B) external validity
C) internal validity
D) experimenter bias

Question

Quizplus · Accepted Answer

Internal validity refers to the extent to which a study is able to demonstrate a causal relationship between the independent variable and the dependent variable while ruling out other potential explanations for the results. If a study has high internal validity, the researcher can confidently conclude that the independent variable caused changes in the dependent variable. Complexity, external validity, and experimenter bias are not directly related to the ability to draw causal conclusions in a study.

When a Researcher Can Make Strong Conclusions That the Independent