Psychology 2800E Lecture Notes - Lecture 5: Erectile Dysfunction, Random Assignment, Cirrhosis
19 Feb 2016
School
Department
Course
Professor
Document Summary
2(make of car: bmw, audi) within subjects design with jerkiness as dv operationally defined as total jerk score (# of jerk behaviours from checklist) Doctors judged an ineffective treatment (portacaval shunt for cirrhosis of the liver) to be effective in: o. 97% of studies with no control group o o. 87% of studies with a control group but without. 25% of studies with a control group and with random assignment random assignment. Treatment was ineffective, because more people improved without the treatment than with it. Change behaviour to fit or not fit the hypothesis. Placebo effects study o o o o o o (placebo) 1 group pre-test /post-test design with no comparison group. An external events occurs to everyone in the group at the same time of the intervention. Performance is either really high or really low at the pre-test, there won"t be such an extreme score at the post-test. Removes all scores for participants who drop out of.
