Читать книгу Social Work Research Methods - Reginald O. York - Страница 22

This chapter focuses on the choice of a research design when you are working with a group of clients who are receiving a common intervention and are being measured by a common instrument. The choice of a research design begins with a review of those things most likely to explain client growth independent of treatment. Readers are encouraged to realistically think of such explanations (i.e., threats to internal validity) that should be of special concern and to select an appropriate research design that controls for this influence. The reader reviews the group research designs (e.g., one-group pretest–posttest design, comparison group design) that are most likely to be employed by frontline socials workers in the evaluation of practice. These group research designs are presented according to the threats to internal validity that are addressed by the design.