Comparing the regression slopes of independent groups

被引：11

作者：

Ng, Marie ^{[1
]}

Wilcox, Rand R. ^{[2
]}

机构：

[1] Univ Washington, Inst Hlth Metr & Evaluat, Seattle, WA 98121 USA

[2] Univ So Calif, Dept Psychol, Los Angeles, CA 90089 USA

来源：

BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY | 2010年 / 63卷 / 02期

关键词：

MODERATED MULTIPLE-REGRESSION; CATEGORICAL VARIABLES; ERROR TERM; HETEROSKEDASTICITY; ESTIMATORS; VARIANCE; DIFFERENCE; INFERENCE;

D O I：

10.1348/000711009X456845

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

In this study, we explore the effects of non-normality and heteroscedasticity when testing the hypothesis that regression lines associated with two independent groups have the same slopes. Our results indicate that some recently proposed methods that allow heteroscedasticity and perform well in extant simulation studies do not perform well for the situation at hand. Two of the methods studied here are recommended for general use.

引用

页码：319 / 340

页数：22

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