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16 Cards in this Set

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Categorical Variable
Number of occurences in each class or category of a variable (nominal)
Continuous Variable
Constant unit of measurement (interval and ratio)
Independent Variable
Stands alone, predicts or may cause a change in a dependent variable
Dependent Variable
Criterion variable, its value is subject to changes in the independent variable(s)
Equation
Dependent variable (Y)=Independent Variable (X)
Technique: Cross Tabulation
Dependent: Categorical
Independent: Categorical (m/f)
Purpose: Assessment of a joint frequency distribution
Technique: T-Test
Dependent: Continous (gpa)
Independent: Categorical
Purpose: Differences in a single mean across 2 groups
Technique: ANOVA
Dependent: Continuous (sales)
Independent: Categorical (3comp)
Purpose: Differences in a single mean across multiple groups (>2)
Technique: Correlation
Dependent: Continous
Independent: Continuous
Purpose: Association between 2 variables
Technique: Regression
Dependent: Continuous
Independent: Continuous
Purpose: Influence of one or more independents on a single dependent
What measurement is used in correlation and regression?
Interval or ratio
What's another prupose of correlation?
Cause and effect
Technique: Cluster analysis
(Interdependence techinique)
Variable: continuous
Purpose: Groups respondents into similar clusters for segmentation
Technique: Factor analysis
(Interdependence techinique)
Variable: continuous
Purpose: Groups variables into similar factors
Purpose: Reliability
(Psychometric scale assessment-only performed on multi-item continuous variables)
Decision Rule: Coefficient alpha>.70
Purpose: Validity
(Psychometric scale assessment-only performed on multi-item continuous variables)
Decision Rule: (1) All correlation coefficients significant (2) single component in factor analysis