When a researcher tries to say that the results of a test market in Indianapolis,Indiana will hold in a national rollout of the new product,this researcher is concerned with:
A)internal validity
B)the repeated measures effect
C)constant error
D)external validity

Question

Quizplus · Accepted Answer

The researcher is concerned with external validity, which refers to the ability to generalize the results of a study to other settings or populations. In this case, the researcher is trying to determine if the results from the test market in Indianapolis can be applied to a national rollout of the product, indicating a concern for external validity.

When a Researcher Tries to Say That the Results of a Test