In an experiment,the researcher randomly assigns students who have been caught smoking inside the high school to three different classes of a health class in which the teacher will address the issues of adolescent smoking.One advantage of this experimental procedure is
A)any variability in student characteristics will be equated among the classes.
B)the students who are caught smoking will be required to take a health class.
C)variables,such as the type of adolescent smoker,will be controlled in the study.
D)the students will be randomly assigned to the three classes and equally distributed.

Question

Quizplus · Accepted Answer

Random assignment of participants to different groups ensures that any variability in student characteristics (age, gender, smoking history, etc.) is equated among the groups. This means that any differences between the groups after the intervention can be attributed to the intervention itself rather than to pre-existing differences between the groups. This is a key advantage of random assignment in experimental research.

In an Experiment,the Researcher Randomly Assigns Students Who Have Been