quantpsy.org

Links:
Interactive Calculators: A few JavaScript and R utilities for applying statistical methods:
- Sobel test calculator for simple mediation effects.
- Chi-square tests of goodness of fit and independence.
- Correlation test for independent correlation coefficients.
- Fisher's exact test for determining independence in 2 x 2 tables.
- Power curve plotting utility for RMSEA.
- Power analysis and sample size determination for RMSEA.
Mediation (Indirect Effect) Material:
- SPSS macro to accompany Hayes & Preacher (in press) paper on nonlinear mediation.
- Monte Carlo calculator for creating sampling distributions and confidence intervals for indirect effects.
- Monte Carlo calculator for creating sampling distributions and confidence intervals for indirect effects in 1-1-1 multilevel models.
- SPSS and SAS macros to accompany Preacher & Hayes (2004) paper on mediation.
- SPSS and SAS macros to accompany Preacher & Hayes (2008) on multiple mediator models.
- SPSS macro to accompany Preacher, Rucker, & Hayes (2007) on moderated mediation models.
- Supplemental material to accompany Preacher and Hayes (2008) paper on multiple mediation models.
- Sobel test calculator for simple mediation effects.
- Mathematica code to accompany Preacher, Rucker, & Hayes (2007) paper on moderated mediation.
- Supplemental material to accompany Bauer, Preacher, & Gil (2006) paper on multilevel mediation, including example SAS code, a SAS macro for testing random indirect effects, and a simulated data file. This material is also available for SPSS and HLM.
- Supplemental material to accompany Zhang, Zyphur, & Preacher (2009) paper on multilevel mediation, including example Stata code.
- Supplemental material to accompany Preacher, Zyphur, & Zhang (in press) paper on multilevel mediation, including example Mplus code.
- Supplemental material to accompany Preacher, Dunkley, & Zuroff (2010) talk on multilevel mediation, including example Mplus code.
- Statistical Mediation Analysis Facebook page.
Moderation (Interaction Effect) Material:
- Interaction Utilities to accompany Bauer & Curran (2006), Curran, Bauer, & Willoughby (2006), and Preacher, Curran, & Bauer (2006) papers on probing interaction effects.
- A primer on understanding interpreting interaction effects in multiple linear regression
Supplemental Material:
- Supplemental LISREL and Mplus code to accompany Preacher & Hancock (2010) talk on reparameterized latent curve models.
- Supplemental simulation results to accompany Preacher, Zhang, & Zyphur (in press) paper on paper on mediation in multilevel SEM.
- Supplemental material to accompany Zhang, Preacher, & Luo (2010) paper on bootstrap confidence intervals for OLS factor loadings and correlations.
- LISREL, Mplus, and Mx syntax to accompany Preacher, Wichman, MacCallum, & Briggs (2008) book, Latent growth curve modeling (permission to reproduce summary data kindly granted by NICHD).
- LISREL syntax to accompany Preacher (2006) paper on testing correlation hypotheses.
- Plots and population matrices to accompany MacCallum, Widaman, Preacher, & Hong (2002) paper on sample size in factor analysis.
- Example data to accompany MacCallum, Zhang, Preacher, & Rucker (2002) paper on dichotomization.
- Plots to accompany Preacher & MacCallum (2002) paper on sample size in factor analysis in behavior genetics.
- Appendix to accompany Preacher, Cai, & MacCallum (2007) chapter on model comparison.