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Published byChastity McGee Modified over 9 years ago
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Methodology Part 1
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Hindsight Bias “I knew it all along” The tendency to believe, after learning an outcome, that we knew the outcome
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Critical Thinking Critical thinking is smart thinking Examines assumptions Discerns hidden values Evaluates evidence Assesses conclusions
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How do psychologists answer questions? The Scientific Method Theory a hunch explanation using an integrated set of principles that organizes observations and predicts behaviors or events Hypothesis can be confirmed or refuted a testable prediction, implied by a theory
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Scientific method continued Operational Definition a statement of the procedures used to define research variables Replication repeating a study with dif. participants in dif. situations to see if the basic findings extend to other circumstances
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Scientific Process 1. Theories Ex. Low self esteem feeds depression 2. Hypotheses Ex. Ppl with low self-esteem will score higher on a depression scale 3. Research and observations Ex. Administer tests of self-esteem and depression. See if a low score on 1 predicts a high score on the other leads to confirm, reject, or revise
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Scientific Method A good theory is useful if it… effecting organizes a range of observations implies clear predictions that anyone can use to check the theory
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Types of research Case Study: an observational technique where 1 person is studied in depth cannot make generalizations from a case study
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Types of Research Survey looks at many cases at once. random sampling thats representative technique for identifying self-reported attitudes + behaviors, usually by questioning. Population: all the cases in a grp being studied from which samples may be drawn. Random Sample: sample that fairly represents the population
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Types of research Naturalistic observation Describes behavior, doesn’t explain behavior doesn’t try to manipulate or control the situation, just observes + records
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Correlation the measure to the extent that 2 factors vary together and how well either factor predicts the other How well does A predict B? Positive vs. negative correlation Strength of the correlation coefficient a statistical # of the relationship btwn 2 things -1.0 to +1.0 Scatterplot: graphed cluster of dots that represents correlation
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Correlation Correlation + causation Correlation does not imply cause and effect!
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Examples Low self esteem ---------> depression OR Depression -----------------> low self-esteem OR Distressing events or biological disposition ---> Low self-esteem + depression
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