CH 3 Flashcards
*measurement
assigning # or symbol in characteristics of objects according to specific rules
1 to 1 correspondence
btw # and characteristics being measured standardizes rules to assign number and apply uniformity
rules must not change
after object or time
*scaling
erecting continue upon which measured objects created
description
unique labels or descirptors
order
relative size or position of descriptors
distance
abolsute difference between scale descriptors
orign
unique or fixed begning or true zero
*nominal
labeling/scales that partition data into mutually exclusive and collectively exhaustive categories i.e. brand A B C
*ordinal
heir achy (but can’t tell specifically how much more or how much less) i.e. rank orders, rank these things in order
*interval
arbitrary no true zero equal distance correlation i.e. on a scale from 1 to 7..
*ratio
meaningful zero, all stat techniques can be applies i.e. age or income level
rationality
can tell how they relate zero (CAN TELL ONLY IN RATIO)
**Comparative scales
involved direct comparison of two stimulus only ordinal properties (paired comparison, rank,
*paired compairsion
two objects & asked to select one
*rank order
several objects present and asked to order according to some criteria i.e. rank toothpaste
*constant sum
constant sum of units i.e. 100 points of attributes
*q-sort
sort relativity large amounts of objects into bins according to some criteria
*itemized
scale w descriptors for each category