# PSYC 3250 Lecture Notes - Lecture 2: Standard Score, Celsius, Squared Deviations From The Mean

## Document Summary

P. 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 (in problems and solutions), final calculation shows a score of 550 on the sat, but the problem was originally about someone with a score of 500. Measurement: the act of assigning numbers or symbols to characteristics of things according to a set of rules. Scale: a set of numbers whose properties model the properties of the objects to which the numbers are assigned. (ex; heights of students, use cm or z score) * z score tells you where you are that is relative to the mean (below or above) Numbers are used to classify and identify (most important) Ordinal scales (rank order, only see who would finish first but not by how much)