Ch.6 Flashcards
Measurement
The process of devising strategies for classifying subject can by categories to represent variable concepts
Quantitative research
Research focused on variables including their description and relationships
Qualitative research
Research focused on the interpretation of the actor of, or representation of meaning created by individual cases
Measure
A specific way of sorting units of analysis into categories
Operationalization
The process of specifying what particular indicators one will use for a variable
Indicators
Observations that we think reflect the presence or absence of the phenomenon to which a concept refers
Index
A composite measure that is constructed by adding scores from several indicators
Composite measures
Measures with more than one indicator.
Scale
An index in which some items are given more weight than others in determining the final measure of a concept
Visual analysis
A set of techniques used to analyze images
Coding
Assigning observations to categories
Exhaustive
The capacity of a variable’s categories to permit the classification of every unit of analysis
Mutually exclusive
The capacity of a variable’s categories to permit the classification of each unit of analysis into one and only one category
Measurement error
The kind of error that occurs when the measurement we obtain is not an accurate portrayal of what we tired to measure
Reliability
The degree to which a measure yields consistent results