SPSS and SAS procedures for estimating indirect effects in simple mediation models
SPSS and SAS procedures for estimating indirect effects in simple mediation models
Kristopher J Preacher,Andrew F. Hayes
2004 · DOI: 10.3758/BF03206553
Behavoir research methods, instruments & computers · 17,519 Citations
TLDR
It is argued the importance of directly testing the significance of indirect effects and provided SPSS and SAS macros that facilitate estimation of the indirect effect with a normal theory approach and a bootstrap approach to obtaining confidence intervals to enhance the frequency of formal mediation tests in the psychology literature.