Exploring Relationships Among Multiple Variables

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Exploring Relationships Among Multiple Variables

• Dealing With Complexity

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Why study multiple variables?

• Human behavior is very complex.
• We know multiple variables usually interact to
  produce behavior.
• Researchers may also wish to use multiple
  measures to asses a single variable.
• In these situations, techniques are needed to
  analyze relationships among multiple variables.

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A Correlation Matrix

• When multiple variables are measured in a study,
  it is common to see the results summarized in a
  table that gives the correlations among the
  variables or among the different measures used.

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Table 2. Correlations among scores on measures
of shame, guilt, self-esteem, and depression.
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Multivariate Techniques

• Factor Analysis
• Extracts descriptive factors from a large set of
  correlations.
• Multiple Regression
• Extracts relationships among multiple variables
• Analysis of Variance (ANOVA)