Running the Analysis

  1. To obtain bootstrap confidence intervals for the median, from the menus choose:

    Analyze > Descriptive Statistics > Explore...

    Figure 1. Explore main dialog
    Explore dialog with Previous Experience in the Dependent List
  2. In the Explore dialog, select Previous Experience (months) [prevexp] as a dependent variable.
  3. Select Statistics in the Display group.
  4. Click Bootstrap.
    Figure 2. Bootstrap dialog
    Bootstrap dialog
  5. Select Perform bootstrapping.
  6. To replicate the results in this example exactly, select Set seed for Mersenne Twister and type 592004 as the seed.
  7. To obtain more accurate intervals (at the cost of more processing time), select Bias corrected accelerated (BCa).
  8. Click Continue.
  9. Click OK in the Explore dialog.

Next