When the design of an experiment is such that the influence of the independent variable can be unambiguously interpreted, the experiment is said to be high in
A) internal validity
B) external validity
C) external reliability
D) all of these

Question

Quizplus · Accepted Answer

Internal validity refers to the degree to which an experiment measures what it aims to measure, and when the design of an experiment is such that the influence of the independent variable can be unambiguously interpreted, it means that the experiment is measuring what it intends to measure, thus making it high in internal validity. External validity, on the other hand, refers to the ability to generalize the findings of the study to populations beyond the study sample, and external reliability refers to the reproducibility of the results. While these are important aspects of experimental design, they are not directly related to the issue of unambiguous interpretation of the independent variable, hence the answer is A.

When the Design of an Experiment Is Such That the Influence