To Test the Impact of Therapy on Depression, a Researcher

Multiple Choice

To test the impact of therapy on depression, a researcher tells a random half of his participants (falsely) that they failed an exam. He then conducts one hour of therapy with the "failure" participants. One week later the participants given false feedback are no more depressed than the control group, so the researcher concludes the treatment was effective. This would be described as which type of research?

A) A mixed design
B) An analogue study
C) A correlational design
D) Convenience sampling