By controlling all extraneous variables and by randomly assigning people to different experimental conditions, an experimenter can achieve high __________.

Question

Quizplus · Accepted Answer

By controlling extraneous variables and randomly assigning people to different experimental conditions, an experimenter can achieve high internal validity, which refers to the extent to which the results of an experiment can be attributed to the independent variable and not to some other confounding variable. Interjudge reliability refers to the consistency of ratings or observations made by different judges or observers. Generalizability refers to the extent to which findings from a study can be applied to other populations or situations. Replicability refers to the ability of other researchers to obtain similar findings by conducting the same study or experiment. While both generalizability and replicability are important in scientific research, they are not necessarily related to the issue of controlling extraneous variables and achieving internal validity.

By Controlling All Extraneous Variables and by Randomly Assigning People