A school district refuses a proposed study because it would consume a considerable amount of instructional time. The decision primarily reflects concern about:
A.Reliability
B.Minimal disruption
C.Construct validity
D.External validity
Correct Answer:
B. Minimal disruption
Research should minimize disruption to the setting.
A mathematics test is designed to cover ten major topics taught during the semester. However, 70% of the questions focus on only two topics. Which aspect of validity is most directly threatened?