PSYCH 2TT3 Lecture Notes - Lecture 2: Blind Experiment, Observer-Expectancy Effect, Headache
12 Jan 2014
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51% = in acupuncture trt. 53% = in sham acupuncture trt. 15% = in no acupuncture trt: placebo effect. There"s no critical scientific evidence that acupuncture relieves pain. Plan experiments: define the question, gather info & resources, do experiments & collect data, analyze data. Interpret data & draw conclusions that serve as a starting point for new hypotheses. Blind experiment: the person collecting the data is blind to subjects" assignment to treatments. Double blind experiment: both data collector & subjects are blind to treatments. Relevant for human subjects only. To prevent experimenter bias, subject bias, & the placebo effect. Group exercise: list 2 ultimate & 2 proximate questions about feeding. 4 f"s: fight, flight, feeding, & reproduction. Fitness is a function of survival & reproduction. The 4th essential behaviour: aggression isn"t a necessary condition but it"s common in most species. The most common aggression involves fighting for access to resources or females. Turtle video: very high mortality rate after hatching.
