690+scales

Scales (nominal, ordinal, interval, ratio)

from Marcie's study session:

nominal: think categories ordinal: agreement scale: no equal intervals interval: no zero: equal intervals, agreed upon by convention ratio: zero

from Fraenkel/Wallen ch. 7



[| **Slides orienting you to inferential statistics (From Moodle Week 8)**]

from F/W website

__Measurement Scales__
 * Four types of measurement scales -- nominal, ordinal, interval, and ratio -- are used in educational research.
 * A nominal scale involves the use of numbers to indicate membership in one or more categories.
 * An ordinal scale involves the use of numbers to rank or order scores from high to low.
 * An interval scale involves the use of numbers to represent equal intervals in different segments on a continuum.
 * A ratio scale involves the use of numbers to represent equal distances from a known zero point.