01:830:200 Lecture Notes - Lecture 26: Statistical Hypothesis Testing, Voting Age, Beck Depression Inventory
21 Jun 2016
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A. 1. b) consistency example: weight (a. 1. b. 1) if you measure your weight, it should measure the same weight when you weigh yourself again. A. 1. d) if it lacks reliability, it is not valid having reliability alone, does not means its valid but it is required for va- lidity. A. 1. e) example: self-esteem (a. 1. e. 1) (a. 1. e. 2) measured with surveys and questionnaire not everyone answers correctly, not everyone know the truth about themselves. A. 1. b) in psychology its hard to measure harder to assess the measurements. Have to do with how precise we can get when measuring a variable. Important to identify which level is being used. A. 5. d) mutually exclusive no gray area more than 2 categories either men or women, not both: ordinal. A. 8. tell you where someone stand compared to everyone else elements can be arranged in hierarchical sequence ( rank order) indicated relative position, so > or < do apply, but interval between positions are unknown.
