PSYC 107 Lecture Notes - Lecture 2: Response Bias, Demand Characteristics, Observer-Expectancy Effect
27 Jan 2017
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Reliability tendency for a measure to produce the same result whenever it is used to measure the same thing. How consistently a test will measure the carriable of interest. Consistency same results over and over again. Measurement validity the degree that a test accurately measures the variable of interest. Internal: extent to which only the iv influences the dv: a studies ability to say definitely that only the iv caused the dv. External: extent to which the findings generalize to the real world: generalize across populations. Your calculator is giving you the wrong answer: nothing about consistency validity. A psychics question appearing on your history exam: validity history and physics have nothing to do together. A minute later it says 270: reliability scale is inconsistent. Naturalistic observation: observations of behavior in the environment in which it typically occurs: figure out if you"re goi(cid:374)g to parti(cid:272)ipate or o(cid:271)ser(cid:448)e. Case studies intensive examination of a specific person or situation.
