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- Bill Lafitte, Pepperdine University - GSEP



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These WINKS statistics tutorials explain the use and interpretation of standard statistical analysis techniques for Medical, Pharmaceutical, Clinical Trials, Marketing or Scientific Research. The examples include how-to instructions for WINKS SDA Version 6.0 Software. Download evaluation copy of WINKS.


Tutorial for WINKS Forest Plot

The following tutorial describes how to create Forest Plot using WINKS (Professional Edition) 6.91 and later.

Step 1: Prepare the data file. (for this example, open FOREST.SDA) The file must contain 6 variables (at least) as indicated here. (You can name them anything you want.) but you must have variables representing Study name, Odds Ratio, Lower Limit, Upper Limit, and relative Weight (Sample Size).

Forest Plot Data

Step 2: Open the data set contain ing your Forest Plot data in WINKS. Select Analyze --> Meta-Analysis --> Forest Plot. The following dialog box is displayed.

Forest Plot Dialog

Select the variables as indicated. Click on a variable name in the left list and click "Add-->" to place the variable name in the appropriate list on the right. Click Ok to contine with the analysis. The following plot is displayed:

Forest Plot

Step 3: The original plot is with all of the defaults.To change the look of the plot, click on the menu items Option --> Plot Option to display the options dialog box:

Forest Plot Options

Step 4: Note the two table -- select Plot Specs Tab to change specification about the plot such as the width on the screen, and color for the box, and background, among other things. For this example, change the Box Color to Red and the Background to light yellow.

Step 5: Select the Labels Tab.

Fortest Plot Option 2

  • Select the Title Font and change it to 18 points and Bold.
  • Click on the "Same" button for the column Labels and change the color to Blue
  • Change the Studies font sixe to 14.
  • Click Plot to display the plot with the selected options:

Forest Plot with Options

There are a number of options not illustrated here...

Step 6: Form the file menu you can also:

  • Print the plot
  • Save to a BMP file
  • Capture to the Clipboard

End of Tutorial

For more information... we recommend:

  • WINKS -- a simple to use and affordable statistical software program that will help you analyze, interpret and write-up your results. Download a free trial copy.
  • Additional statistics tutorials.
  • Against All Odds VIDEOS - Now in VHS or DVD formats Teaching Videos from Annenberg/PBS Click here for info
  • BeSmartNotes Reference sheets for SAS, SAS ODS, SPSS and WINKS  - Click here for info.
  • Statistical Analysis Quick Reference Guidebook: With SPSS Examples is a practical "cut to the chase" handbook that quickly explains the when, where, and how of statistical data analysis as it is used for real-world decision-making in a wide variety of disciplines. It contains examples using SPSS Statistics software. In this one-stop reference, the authors  provide succinct guidelines for performing an analysis, avoiding pitfalls, interpreting results, and reporting outcomes. Paperback.Sage Publishers ISBN: 1412925606 Order book from Amazon



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