PSYC 3250 Lecture Notes - Lecture 1: Percentile, Unimodality, Takers
8 Dec 2015
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Document Summary
On page 82, third paragraph, instead of a deviation score of 220 it should read 20. Page 83, first paragraph, near the bottom, a z score of 21. 25 should be -1. 28. Page 90 (problems and solutions), final calculation shows a score of 550 on the sat, but problem was originally about a someone with a score of 500. Measurement: the act of assigning numbers or symbols to characteristics of things according to a set. Scale: a set of numbers whose properties model the properties of the objects to which the numbers. Numbers are used to classify and identify. Assigns numbers to individuals so that the rank order of the numbers corresponds to the rank order of the individuals in terms of the attribute being measured. Ordinal scales imply nothing about how much greater one ranking is than another. Zero point has no intrinsic meaning (e. g. zero degrees celsius does not mean an absence of temperature)
