PSYC 2001 Lecture Notes - Lecture 5: Mental Chronometry, Empiricism, Eharmony

• School: Carleton University
• Department: Psychology
• Course: PSYC 2001
• Professor: Deanna Whelan

Document Summary

Variables and measurement scale/level: how we measure the variable, nominal scales, ordinal scales. Interval scales: ration scales, as you move from one scale to the next (follow the arrow) each scale (cid:862)adds(cid:863) o(cid:374)e (cid:374)e(cid:449) (cid:272)riteria fro(cid:373) the previous scale. Categorical (nominal: categories with no meaningful numeric value, ex. Impossible to define any quantitative values or differences across categories: males and females whatever numbers i want, we still convert to numbers used in statistical programs. Ordinal scale: rank ordering with numeric values, ex. Restaurant ratings, birth order, olympic medals: has magnitude; values are smaller or larger than the next. Interval scale: has magnitude; values are smaller or larger than the next, no absolute zero point (this is the only difference between interval and rational) Interval between items is known and meaningful: does have an relative zero though, ex. Ratio scale: has magnitude; values are smaller or larger than the next, has an absolute (true) zero point.