L33 Psych 301 Lecture Notes - Lecture 2: Response Bias, Inflection Point, Internal Validity
7 Dec 2020
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There is an inflection point: how do we establish relationships amongst variables, no relationship, experiments=the iv(s) is/are manipulated. Can establish cause and effect relationships between the iv and the dv, but ability to generalize to real world behavior can be limited: quasi-experiment=measurement of dv when random assignment to groups is not possible. Can provide strong evidence suggesting cause and effect relationships, but lack of random assignment can weaken conclusions: naturalistic observations=careful observations of humans or other animals in real-life situations. Provides descriptive data about behavior with wide applicability, but there is a loss of experimental control: surveys and tests=obtain large samples of abilities, beliefs, or behaviors at a specific time and place. Austria are all high on both nobel prize centered in. Stockholm, so giving to neighbors: difficult or impossible to infer direction of cause and effect, low internal validity=our ability to accurately infer causal relationships, non-experimental design: questionnaire to employees of a business about what people eat for breakfast.
