Running the Analysis

  1. To run a GLM Multivariate analysis, from the menus choose:

    Analyze > General Linear Model > Multivariate...

    Figure 1. GLM Multivariate main dialog box
    GLM Multivariate main dialog box
  2. Select Length of stay and Treatment costs as dependent variables.
  3. Select Clot-dissolving drugs and Surgical treatment as fixed factors.
  4. Click Contrasts.
    Figure 2. Contrasts dialog box
    Contrasts dialog box
  5. Select clotsolv(None) as the contrast to change.
  6. In the Change Contrast group, select Simple as the contrast type.
  7. Select First as the reference category.
  8. Click Change, then click Continue.
  9. Click Options in the GLM Multivariate dialog box.
    Figure 3. Options dialog box
    Options dialog box
  10. In the Options dialog, select Estimates of effect size, SSCP matrices, Homogeneity tests, and Spread vs. level plots in the Display group.
  11. Click Continue.
  12. Click OK in the GLM Multivariate dialog box.

By default, a model is fit with Clot-dissolving drugs and Surgical treatment as main effects and their interaction as a two-way effect.

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