A researcher is constructing a test for use in a study.In order to insure the highest reliability, the researcher should
A) increase the number of items on the test.
B) plan to increase item homogeneity.
C) try out the test on a heterogeneous group.
D) All of these are true.

Question

Quizplus · Accepted Answer

In order to insure the highest reliability, the researcher should increase the number of items on the test to ensure greater content validity and to increase the internal consistency of the test. A larger number of items also allows for greater reliability through the use of statistical tests. Planning to increase item homogeneity is also important, as items on the test should measure the same overall construct or concept. Finally, trying out the test on a heterogeneous group can also help with establishing reliability, as it allows for a greater range of responses and can help identify any potential biases or errors in the test.

A Researcher Is Constructing a Test for Use in a Study.In