Levels of Measurement Flashcards
Is the process for determining the value or label of a particular variable for a particular experimental unit
Measurement
is the weakest of measurement where numbers or symbols are used simply for categorizing subjects into different groups
Nominal Level (Classificatory Scale)
Contains the properties of the nominal level, and in addition, the number assigned to categories of any variable may be ranked or ordered in some low-high manner
Ordinal Level (Ranking Scale)
has the properties of the nominal and ordinal levels, and in addition, the distances between any two numbers on the scale are of any known sizes. It must have a common and constant unit of measurement that is arbitrary and there is no true zero point
Interval Level
this level of measurement contains all the properties of the interval level and in addition, it has a true zero point.
Ratio Level
Sex
Nominal
Marital Status
Nominal
Teaching Rating
Ordinal
Year Level
OrdinalI
IQ
Interval
Temperature
Interval
Age
Ratio
Grade
Ratio
Door choice on a game, “Let’s make a deal”
Nominal
Television Show Ratings
Ordinal
Personal Computer Ownership
Nominal
Zip Code
Nominal
Determine the type of Variable and its level of measurement:
Number of correct answers in the quiz
Quantitative, Discrete, Ratio
Citizenship
Qualitative, Nominal
Civil Status
Qualitative, Nominal
Educational Level
Qualitative, Ordinal
Temperature in Fahrenheit
Quantitative, Continuous, Interval
Classification of Data (Primary vs. Secondary)
Data measured by the researcher or agency that publishes it
Primary Source
any republication of data by another agency
Secondary Source
External vs. Internal
Information that relates to the operations and functions of the organization collecting the data
Internal Data
information that relates to some activity outside the organization collecting the data
External Data
