Question

A researcher is studying the effectiveness of two different resident adolescent drug treatment programs. Program A is used at Summerhill adolescent facility. Program B is used at Winterdale adolescent facility. Because random assignment to treatments is not possible in this situation, what can the researcher do to minimize possible effects of sample bias?

Answer 1

Answer and explanation:

In order to avoid sample bias, it is important to make a classification of the teenagers being studied by categorizing them according to race, family composition, and drugs used, for instance. This will allow the researcher to compare similar samples of the two different facilities instead of picking some randomly without taking into consideration factors like the mentioned above.