PSYC 2001 Lecture 5: PSYC 2001 -lecture #5
16 Oct 2018
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Document Summary
How we measure the variable: nominal scales, ordinal scales, interval scales, ratio scales. As you move from one scale to the next (follow the arrow) each scale adds one new criteria from the previous scale. Some fall in one type of measurement over others. Each one of these terms going from easiest to complicated (nominal ratio) Categories with no meaningful numeric value (no order to it) Not one is better than the other, just different options that exist: ex, males/females, experimental condition/control condition. Impossible to define any quantitative values or differences across categories: we convert info to numbers (computers can assist us) but there is no natural" unit or value to the categories, ex. Can call females a 22 or a 7 it doesn"t matter it just makes it easier when coding instead of having to write the word over and over. Ex: restaurant ratings, birth order, olympic medals, races (1st, 2nd, 3rd, 4th)
