SDS250R Lecture Notes - Lecture 1: Continuous Or Discrete Variable, Level Of Measurement, English Alphabet
19 Sep 2016
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Sds 250r - lecture 1 - intro to statistics and research. Population: entire group of inds. to which a law of nature applies. Sample: relatively small subset of a population use the scores in the sample to infer scores we expect in population. Participants: inds. measured in a sample, their scores that contribute to data. Researchers study behaviour of inds. in a sample by measuring specific variables. Variables: anything that can produce two/more diff. scores. Includes characteristics of an ind. (age, race, gender, personality type, etc. ), reactions, performance, characteristics of a situation, etc. Two general categories: quantitative variables:variable for scores that reflect amount of the variable that is present (ex; height) qualitative variables: scores reflect a quality/category that is present (ex; gender) Relationship: pattern b/w two variables where change in one variable is accompanied by consistent change in the other (association) The more you x, the more/less you y .
