Casey, marcy, and cindy are 15-year-old girls who have all been diagnosed with depression. casey is prescribed an ssri, marcy receives psychotherapy, and cindy receives both ssri treatment and psychotherapy. which girl do you think will show the most improvement

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a. static group comparisonb. pretest-posttest control group designc. control-group-time-series designd. nonrandomized control-group pretest-posttest design