Which of the following has the highest degree of internal validity?
A) field experiment
B) laboratory experiment
C) concomitant experiment
D) none of the above

Question

Quizplus · Accepted Answer

Laboratory experiments have the highest degree of internal validity because they can control for extraneous variables more effectively than field experiments or concomitant experiments. In a laboratory setting, researchers can manipulate and control all aspects of the experiment, including the environment, stimuli, and subject selection, which reduces the likelihood of confounding variables affecting the results.

Which of the Following Has the Highest Degree of Internal