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Hypothesis Testing and Multiplicative Interaction Terms
Bear F. Braumoeller
Vol. 58, No. 4 (Autumn, 2004), pp. 807-820
Stable URL: http://www.jstor.org/stable/3877804
Page Count: 14
You can always find the topics here!Topics: Coefficients, Statistical significance, Democracy, Variable coefficients, International political organizations, Regression coefficients, Mathematical independent variables, Test theory, Standard error
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When a statistical equation incorporates a multiplicative term in an attempt to model interaction effects, the statistical significance of the lower-order coefficients is largely useless for the typical purposes of hypothesis testing. This fact remains largely unappreciated in political science, however. This brief article explains this point, provides examples, and offers some suggestions for more meaningful interpretation.
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