home / centre for automotive safety research / Publications / List / Details Publication DetailsTitle  Beyond interaction: theories  Authors  Hutchinson TP  Year  2006  Type  Journal Article  Abstract  An interaction between two factors in their effects on a dependent variable is here modelled as (first) summation of quantities derived from the two factors individually, and
(second) a nonlinear relation between that sum and the dependent variable. There are only a few possible nonlinear functions that need to be considered. The dataset used as an example is a 3 x 3 table showing crossover interaction. The proposed explanation uses a quadratic curve (which has a descending limb and an ascending limb) to achieve reversal of the effect of one factor for some categories of the other factor.  Journal Title  Quality & Quantity  Journal Volume (Issue)  40(5)  Page Range  869878 
Reference  Hutchinson TP (2006) 'Beyond interaction: theories', Quality & Quantity, 40(5), pp 869878. 
