Dr Truax Has Developed an Intervention Program Designed to Increase

Dr. Truax has developed an intervention program designed to increase safe-sex practices among college students. During the three-week program, students complete online modules about safe sex, attend discussion sections, and keep a diary of their sexual activity. The results are compared to a set of success criteria that the college administrators have identified. Dr. Truax's research is an example of

A) evaluation research.
B) basic research.
C) action research.
D) qualitative research.