Chapter 1 Flashcards
Defining & Collecting Data (10 cards)
1
Q
Operational Definition
A
How a concept or variable is measured/observed
2
Q
Numerical Variable
A
Represents quantities
3
Q
Categorical Variable
A
Represents categories/qualities
4
Q
Discrete Numerical Variable
A
Data that arises from a counting process
5
Q
Continuous Numerical Variable
A
Data that arises from measuring
6
Q
Measurement Scale
A
Determines how a variable can be compared to other variables
7
Q
Interval Scale
A
Measures differences between values, but doesn’t have a true zero (temperature)
8
Q
Nominal Scale
A
Represents categories without an implied order or ranking (color)
9
Q
Ratio Scale
A
Includes a true zero point for meaningful ratios (cost $2 is twice $1)
10
Q
Ordinal Scale
A
Implies an order (ex: poor, good, fair…)
