title: Testing Main Effects Of Continuous Variables In Nonadditive Models.
abstract: Problems in testing main effects when there is interaction are discussed. A method by which main effects can be tested independently of the interaction is developed and compared with the hierarchical method. The hierarchical method is shown to be inadequate, as it does not provide sufficient control of the type I error rate. The alternative method provides control of the type I error rate, but is quite conservative.
authors.forename: D M
authors.initials: DM
authors.lastname: Lane