Conditional regression analysis: Problems, solutions and an application

Bas Denters*, Rob A.G. van Puijenbroek

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
124 Downloads (Pure)


This article deals with the question of whether the inclusion of multiplicative terms to model conditional effects in multiple regression is legitimate. The major arguments in the controversy relating to this subject are reviewed. The main conclusion is that most of the objections against multiplicative terms are based on misinterpretations of the coefficients of conditional models. For the often-ignored possible numerical problems in the estimation of these models, due to multicollinearity, an indirect estimation technique is proposed. The potentials of conditional regression analysis are demonstrated on a concrete example.

Original languageEnglish
Pages (from-to)83-108
Number of pages26
JournalQuality & quantity
Issue number1
Publication statusPublished - 1 Feb 1989


  • Regression analysis
  • Estimation technique
  • Numerical problem
  • Conditional effect
  • Indirect estimation


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