PSYCH 2220H Chapter Notes - Chapter 5: Null Hypothesis, Type I And Type Ii Errors, Illusory Correlation

• School: Ohio State University
• Department: Psychology
• Course: PSYCH 2220H
• Professor: Cravens- Brown Lisa Marie

Document Summary

Chapter 5: sampling and probability: samples and their populations, random sampling. Every member of population has equal chance of being selected into study: convenience sampling. Researchers ability to apply findings from one sample to other samples. Duplication of scientific results, ideally in different context. Participants actively choose to participate in a study (self: the problem with a biased sample selected sample) Every participant has equal chance of being put into any level of independent variable. Decide to go across, back, up, down to get #s. Unintentional tendency to pay attention to evidence that confirms what we already believe and ignore evidence that world disconfirm our beliefs. Phenomenon of believing one sees an association between variables when no such association exists. Coincidences are not unlikely: expected relative-frequency probability. Person"s own judgment about likelihood that an event will occur. Likelihood that a particular outcome out of all possible outcomes will occur.