Contents 1
Missing Value Analysis
1
Displaying Patterns of Missing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Displaying Descriptive Statistics for Missing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Estimating Statistics and Imputing Missing Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 EM Estimation Options . . . . . . . . . . . . Regression Estimation Options. . . . . . Predicted and Predictor Variables . . . MVA Command Additional Features . . . . .
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Describing the Pattern of Missing Data
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12
Running the Analysis to Display Descriptive Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Evaluating the Descriptive Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Rerunning the Analysis to Display Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Evaluating the Patterns Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Rerunning the Analysis for Little’s MCAR Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3
Estimating Statistics
24
Running the Analysis to Estimate Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 A First Look at the Estimates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Rerunning the Analysis to Omit Income. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Comparing the Estimates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Appendix A Sample Files
33
Index
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