Psychology 1000 Lecture Notes - Action Potential, Myelin, Internal Validity

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Case: increases in temperature cause increases in aggression. Recorded temp each day and noted the number of reported assaults. Research methods: observation, survey, case, study, correlation, experiment (causality) *problem: potential order effect if you do one test first, it may affect how you respond to second test. ) Internal validity: degree to which experiment supports causal conclusion, study needs to have high internal validity. External validity: degree to which results can be generalized. Sept 20, 2012: cues in experiment convey hypothesis to participants, they help experimenter, if participant figures out what you"re studying, they"ll try to help by learning toward certain result. Experimenter expectancy: experimenter conveys hypothesis to participants, intons-peterson (1983) Best way to avoid this is double-blink experiment. Maximize internal validity and lessen external validity. Behavior is dependent on person and how they developed/ were influenced by their society. How to avoid this: random sampling-equal representations of different groups.