When You Employ the One-Group Pretest-Posttest Research Design, You Engage

Multiple Choice

When you employ the one-group pretest-posttest research design, you engage in which steps?

A) After you measure each client several times during a baseline period and several times during a treatment period, you compare the differences to see if there was improvement and if the data were statistically significant.
B) You give two groups of people a pretest and a posttest and examine the data to see if there was improvement and if the data were statistically significant.
C) You measure one group of clients one time before treatment begins and one time at the end of treatment and you compare the difference to see if there was improvement, and whether the data were statistically significant.
D) You measure a single client one time before treatment begins and several times during the treatment period and examine the data to see if there was improvement and if the data were statistically significant.