SOCPSY 2K03 Lecture Notes - Lecture 5: Scientific Control, The Control Group, Quasi

• School: McMaster University
• Department: Social Psychology
• Course: SOCPSY 2K03
• Professor: Paul Glavin

Document Summary

Conditions required to establish a causal relationship: temporal order, co-variation (association or correlation, non-spuriousness. But: correlation causation: experiment: an operation or procedure carried out under controlled conditions in order to test a hypothesis, used to examine cause-and-effect relations between an iv (stimulus) and dv. Challenges to experimental designs: hawthorne effect: a term coined in reference to a series of productivity studies at the. Experimental and control groups: the need for control groups is very common in medical research, the control group receives an experimental factor that is not a real factor but a placebo. Persons in the control group or persons in the experimental group are not aware of the. Real factor or the placebo factor: often several experiments may be used to investigate a phenomenon. In the case of medical research, those researchers responsible for administering a drug or the placebo do not know which group is the experimental group or the control group.