ERIC Number: ED464933
Record Type: Non-Journal
Publication Date: 2002-Apr-4
Reference Count: N/A
A Method for Assessing Change in Attitude: The McNemar Test.
Ciechalski, Joseph C.; Pinkney, James W.; Weaver, Florence S.
This paper illustrates the use of the McNemar Test, using a hypothetical problem. The McNemar Test is a nonparametric statistical test that is a type of chi square test using dependent, rather than independent, samples to assess before-after designs in which each subject is used as his or her own control. Results of the McNemar test make it possible to determine whether there is a significant difference between the pretest and posttest scores of students on the dependent variable. A significant difference usually implies that an intervention or treatment has had an effect. In the hypothetical example, an elementary school counselor is asked to conduct group guidance activities for all 278 students at an elementary school because teachers suspect some students are cheating. The counselor administers the same questionnaire about attitudes toward cheating before and after a counseling program. The example shows that the McNemar test is relatively easy to calculate and interpret. One limitation is that of sample size: the McNemar test is designed for use with large samples. (SLD)
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A