# Shared Flashcard Set

## Details

Sociology 2680
Research Methodology Exam #2
20
Sociology
10/30/2012

Term
 Concept
Definition
 An abstract idea or notion
Term
 Conceptualization
Definition
 A way to interpret a concept.
Term
 Operationalization
Definition
 How you define and measure a concept.
Term
 How do question sets reduce the likelihood of idosyncratic variation (error) ?
Definition
 It takes multiple questions and combines them into one measurable scale.
Term
 Idiosyncratic Variation
Definition
 Error
Term
 Scale
Definition
 A way to meaure a set of questions
Term
 Index
Definition
 Sum or average of the questions. The averages out of error.
Term
 Nominal Measurement
Definition
 Qualitative When a variable measures in kind or quality but not amount. ex) Gender, race, or type of car
Term
 Ordinal Measure
Definition
 First quantitative level Order only Fixed distance between units Greater than, less than ex) Education
Term
 Interval Measurement
Definition
 Quantitative Fixed measurement units, but no fixed zero point Can't use division or multiplication Can use addition or subtraction ex) Tempurature or IQ
Term
 Ratio Measurement
Definition
 Highest precision quantitative measure Fixed measurement units and fixed zero Can use (+, -, /, x) ex) Money, Age   You always want this measurement
Term
 Measurement Validity
Definition
 Degree to which a measure measures what it is supposed to measure.
Term
 Face Validity
Definition
 How well something measures something by the way it looks.
Term
 Content Validity
Definition
 The content within the experiement is valid. Compare with the topic of subject to check for validity.
Term
 Internal Validity
Definition
 There is a casual relationship between the variables being studied.
Term
 External Validity
Definition
 The causal relationship discovered can be generalized to other people, times and contexts.
Term
 Reliability
Definition
 The degree to which a measurement instrument gives the same results each time that it is used Consistency!
Term
 Reliability vs. Validity
Definition
 Reliability is consistency and how accurate the measure is. Validity is how well a measure measures what it was supposed to measure.
Term
 Generalizability
Definition
 takes a score from a sample of behaviors and applies them to the entire possible set of observations.
Term
 Population
Definition
 Entire group of people in a society
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