Which of the following research methods is best for establishing internal validity?
A) Experiments
B) Surveys
C) Participant observation
D) Focus groups
E) All of the above

Question

Quizplus · Accepted Answer

Experiments are considered the gold standard for establishing internal validity because they involve manipulating an independent variable to determine its effect on a dependent variable while holding all other variables constant. This allows for greater control over extraneous variables and increases the confidence in causality.

Which of the Following Research Methods Is Best for Establishing