Jon Is Interested in the Benefits of Community Service for Student

Multiple Choice

Jon is interested in the benefits of community service for student self-esteem. He administers a self-esteem measure at the beginning of the school year and then assigns students to one of three types of community service activities. After the service is complete he again measures their self-esteem to see differences. Which of the following might be a causal-comparative research question Jon first posed prior to designing his study?

A) What types of community service do students say that they would like to complete?
B) Is 5 hours of community service enough for students to gain benefits in self-esteem?
C) Is there a relationship between self-esteem scores taken before and self-esteem scores taken after community service?
D) Are there differences in students' self-esteem after engagement in three types of community service activities?