In Widom's study of the effects of child abuse and its impact upon later criminal offenses,she selected a sample of children with court records of being abuse victims and gathered a comparison group that was matched on gender,race,age and socioeconomic status.The technique used in this case was:
A) individual matching
B) aggregate matching
C) randomization
D) all of the above

Question

Quizplus · Accepted Answer

Individual matching involves selecting a sample of participants with a certain characteristic (in this case, child abuse victims), and selecting a comparison group that is matched on specific variables (gender, race, age, socioeconomic status) to minimize the effects of these variables on the outcome being studied. Therefore, the best technique used in this case is individual matching. The other options (aggregate matching and randomization) were not used in this study.

In Widom's Study of the Effects of Child Abuse and Its