Which approach would be most appropriate for testing the hypothesis that taking practice tests improves learning more than studying alone does?
A) Experimental research
B) Correlational research
C) Surveys of representative samples of students
D) Case studies of high-achieving students

Question

Quizplus · Accepted Answer

Experimental research would be the most appropriate approach for testing this hypothesis because it involves manipulating an independent variable (taking practice tests) and measuring its effect on a dependent variable (learning), while controlling for other factors. This would allow for causality to be established and for the strength of the effect to be measured. Correlational research, surveys of representative samples of students, and case studies would not allow for the manipulation of an independent variable or the establishment of causality.

Which Approach Would Be Most Appropriate for Testing the Hypothesis