SiSSy 1.1
Simple Slope Syntax for Test of Moderation and Simple Slopes for One Dichotomous or Continuous Moderator Candidate of One Centered IV in SPSS

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in order to download this tool for offline use, simply choose "save website" and save anywhere.
fields and buttons can be accessed with [alt]+x where x is the number of the step or the characters in brackets next to choices.
syntax output will be updated automatically (if existent) after changes to <i. SPSS version>, <ii. dichotomous or continuous moderator candidate?> and <iii. moderator standardized?>.
  1. SPSS version
    2. <12 [a]  ≥12 [b]

  2. dichotomous or continuous moderator candidate?
    3. dich[x] cont[y]

  3. is the moderator candidate variable standardized?
    4. no [c] yes [d]

  1. Enter the SPSS variable name of the centered independent variable:
  2. Enter the SPSS variable name of the moderator candidate variable:
  3. Enter the standard deviation of the continous moderator:

  4. Enter the SPSS variable name of the dependent variable:



Based on the Jena IGC Seminar on Methods of Intergroup Research and Aiken, L. S., & West, S. G. (1991). Multiple regression: Testing and interpreting interactions. Thousand Oaks: Sage.

written by Thomas Schubert and Johann Jacoby [2004]. please report bugs and suggestions to them.