Chapter 19: FACTOR ANALYSIS
Factor analysis allows one to look at groups of variables that tend to be correlated to
each other and identify underlying dimensions that explain these correlations. It is an
interdependence technique that examines an entire s
CHAPTER 7- CROSS-TABULATIONS
Describes two or more variables simultaneously. Cross-tabs merge the frequency
distribution of two or more variables into a single table. Cross-tab with two variables =
Each variable must have a nom
Chapter 20: CLUSTER ANALYSIS
Like FA, Cluster Analysis examines an entire set of interdependent relationships and
makes no distinction between dependent and independent variables.
CA aims to classify objects into relatively homogenous groups (clusters) ba
Defn: technique for analyzing data when the dependent
variable is categorical and the independent variables are
Eg Do heavy, medium and light users of soft drinks differ in
terms of their consumption of frozen fo
Chapter 15 Frequency distribution
Definition: Frequency distribution A mathematical distribution whose objective is to obtain
a count of the number of responses associated with different values of one variable and to
express these counts in percentage ter
CHAPTER 16-HYPOTHESIS TESTING AND
ANALYSIS OF VARIANCE AND COVARIANCE
Hypothesis testing can take the form of testing associations or testing a difference.
Null Hypothesis - a statement in which no difference or effect is expected. If the null is not
Chapter 8: Measurement & Scaling: Fundamentals and Comparative Scaling
Measurement: the assignment of numbers or other symbols to characteristics of objects according to
certain prespecified rules
Scaling: the generation of a continuum upon which measured
- Defn: The strength of association between two metric variables and to
determine if a linear relationship exists.
- Eg. How strongly are sales related to advertising expenditures?
- Data: metric ie interval or ratio; normal