Back to TTM ResultsDrop out, or attrition, is a common problem in longitudinal research. We began our study with 201 couples, and 183 wives and 180 husbands completed the final phase of the study. Thus, the rate of attrition in the study was about 10%, which is relatively low compared to other newlywed studies of similar duration where it is common to observe attrition rates from 3 to 24%.
Of those couples who did not complete the final phase, 13 dropped out of the project entirely and 5 couples that we know of separated or divorced.