PSYC 210 Lecture Notes - Kelvin, Normal Distribution, Unimodality
14 Sep 2012
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Document Summary
Inferential infers a conclusion based on the data. Equal-interval the difference between two successive categories are the same (assume equal-interval up to. Temperature measured with fahrenheit has equal intervals; the difference between temperatures of 30 and 31 degrees is 1 degree, and the difference between 100 and 101 degrees is 1 degree. No matter where on the scale that 1 degree is located, that 1 degree represents the same amount of heat. Ratio just like interval, except that a variable on the ratio scale has a true zero point--a beginning or ending point. Rank-order no equal difference between ranks i. e. , the order in which athletes come in rank: 1st, 2nd, 3rd. Nominal no numerical value; the order or sequence of nominal variables is not prescribed qualitative classification example: gender. Discrete variable variable that is measured solely in whole units, e. g. , gender and siblings; can"t have 4. 5 dogs .
