PSYC 2230 Lecture Notes - Lecture 6: Chi-Squared Distribution, Sport Utility Vehicle, Observable Variable
Document Summary
Nominal differences between nominal categories are qualitative instead of. Example males versus females introvert versus extrovert sport car versus suv. Individuals can only be in one category and not multiple categories. Some people feel this scale is too primitive. Summarizing any data and analyzing is limited. Can only make qualitative differences (whether two people are the same or different) Report frequency in the form of percentages or proportion frequencies. Example: results of a horse race (1st, 2nd, 3rd etc ) , class rank. Can determine whether two individuals are different as well as the direction of difference (example: someone who places 4th versus someone who places 2nd) No indication of the magnitude of difference. Interval rank ordering and the distance between categories is assumed to be identical. Example: temperature between 40 and 50 degrees is the same as 70 and 80 degrees. 2 -1 0 1 2 horrible to awesome.
