Distribution of the product confidence limits for the indirect effect: Program PRODCLIN

被引：1126

作者：

MacKinnon, David P. ^{[1
]}

Fritz, Matthew S.

机构：

[1] Arizona State Univ, Dept Psychol, Tempe, AZ 85287 USA

[2] Res Triangle Inst, Res Triangle Pk, NC 27709 USA

来源：

BEHAVIOR RESEARCH METHODS | 2007年 / 39卷 / 03期

关键词：

D O I：

10.3758/BF03193007

中图分类号：

B841 [心理学研究方法];

学科分类号：

040201 ;

摘要：

This article describes a program, PRODCLIN (distribution of the PRODuct Confidence Limits for INdirect effects), written for SAS, SPSS, and R, that computes confidence limits for the product of two normal random variables. The program is important because it can be used to obtain more accurate confidence limits for the indirect effect, as demonstrated in several recent articles (MacKinnon, Lockwood, & Williams, 2004; Pituch, Whittaker, & Stapleton, 2005). Tests of the significance of and confidence limits for indirect effects based on the distribution of the product method have more accurate Type I error rates and more power than other, more commonly used tests. Values for the two paths involved in the indirect effect and their standard errors are entered in the PRODCLIN program, and distribution of the product confidence limits are computed. Several examples are used to illustrate the PRODCLIN program. The PRODCLIN programs in rich text format may be downloaded from wwwpsychonomic.org/archive.

引用

页码：384 / 389

页数：6

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