PSYS 100 Lecture Notes - Lecture 5: Internal Validity, Scatter Plot, Capgras Delusion
13 Apr 2017
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General terms- reliability & validity: getting similar results under similar conditions and/ or at different times. Validity: getting accurate results, or measuring what you are intending to measure. Allows us to test specific hypotheses derived from broader theories of how things work: in psychology, and other areas, theories are never proven, but hypotheses can be supported (or not supported) Naturalistic observation, case study, correlational design, experimental design. Naturalistic observation: watching behavior in real-world settings, high degree of external validity. Extent to which we can generalize our findings to the real world: low degree of internal validity. Extent to which we can draw cause-and-effect inferences. Scientific method: depth is emphasized rather than breadth, common with rare types of brain damage or psychological disorders. Capgras syndrome : helpful in providing existence proofs, Experimental studies: permit some cause and effect determination. Random assignment of participants to conditions: experimental group- receives the manipulation, control group- does not receive the manipulation.
