Multiple Choice
I am interested in whether different types of therapy result in faster recover. I follow 7 different therapists using a different type of therapy and 20 patients in each condition and I record how long it takes for them to be cured. As you can imagine, I cannot determine who goes to which therapist and thus there is no random assignment of patients. What kind of research method am I using?
A) case study
B) observational research
C) experimental research
D) quasi-experimental research
Correct Answer:

Verified
Correct Answer:
Verified
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