chapter 2 notes - Methods of Psychology chapter 2 Lessons...

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Methods of Psychology- chapter 2 Lessons from Clever Hans Osten teaches Clever Hans (horse) to answer questions Oskar Pfungst finds horse responds to visual signs inadvertently produced by people Facts theories and hypotheses Fact-objective statement based on diesrect observation Theory-idea to explain existing facts and make predictions about new facts Hypothesis- prediction about new facts derived from a theory Lessons Value of skepticism o Leads to careful inspection o Think of alternative o Simpler explanations are better- parsimony. Occam’s razor Value of controlled experimentation Problem of observer expectancy effects o Observers unintentionally communicate their expectations Types of Research Strategies Design o Experiment IV on DV Researcher manipulates variables Within-subject experiment: participants test several IV Between-groups experiment: IB applied to different groups o Correlational studies
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  • Spring '11
  • Marino
  • Psychology, researcher, observer expectancy effects

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