Structural Equation Models with Directly Observed Variables II

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Structural Equation Models with Directly Observed
Variables II

• James G. Anderson, Ph.D.
• Purdue University

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Identification

• Over Identified
• Just Identified
• Under Identified

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Covariances

• Among observed variables
• Among exogenous variables
• Among measurement errors
• Among errors in the equations

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Covariances among Observed Variables
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Covariances among Exogenous Variables
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Covariances among Measurement Errors
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Covariances among the Errors in the Equations
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Class Exercise

• Create a new model
• From the menu choose File/New
• Specify the Data file
• Choose File/Data Files
• Browse to the tutorial folder. The path is
• C\Program Files\Amos 6\Examples
• In the Files of type list select SPSS
• Select Fels_mal.sav
• Estimate the Parameters of the different models
  and compare their fit statistics