The high degree of validity in which type of study stems mainly from the investigator's ability to randomize subjects to either the treatment group or the comparison group and thereby control for distortions produced by confounding variables?
A) Cohort study
B) Ecological study
C) Experimental study
D) Case-crossover study

Question

Quizplus · Accepted Answer

Experimental studies, such as randomized controlled trials, allow investigators to randomize subjects into treatment and control groups, effectively controlling for confounding variables and enhancing the study's validity.

The High Degree of Validity in Which Type of Study