Topics

I have specialized in the following statistical analyses:

Mediation and Moderated Mediation with PROCESS

  • Using the PROCESS macro for SPSS or for R
  • Selecting the best PROCESS model template for your hypothesis
  • Additional options for running PROCESS
  • User defined models in PROCESS
  • Dealing with covariates
  • Model pruning
  • Checking the regression assumptions when using PROCESS
  • Interpreting PROCESS output (index of moderated mediation, conditional indirect effects, etc.)
  • Reporting PROCESS results

Multilevel Modeling (= Mixed/Random Effects) with R or SPSS

  • Cross-sectional models with nested data (e.g. students within schools)
  • Longitudinal models (e.g. timepoints within persons)
  • Dairy studies (intensive longitudinal data)
  • Specifying the model
  • Testing assumptions
  • Interpreting results

SEM, CFA and Path Analysis with the Lavaan Package for R or with AMOS

  • Model specification: Translating the theoretical model into lavaan code
  • Model estimation: ML, robust estimation (Satorra-Bentler, Huber-White), bootstrap, missing values (FIML), checking assumptions
  • Model evaluation: Chi-square, fit indices, global fit, local fit
  • Model respecification: How to use modification indices
  • Model interpretation: What do the results tell us?
  • Troubleshooting: What to do if the model fit is not as espected, what to do if the model estimation does not converge
  • Mediation: Partial indirect effects, total indirect effects, total effects, contrasts
  • Moderation: Interactions in path analysis and in full SEM (with the double mean centering method)
  • Dealing with binary or ordinary scale variables (only lavaan)
  • Multigroup CFA (measurement invariance)
  • Multigroup path analysis
  • Longitudinal measurement invariance
  • Cross-lagged panel models
  • Item parceling (SEM, CFA)
  • Comparing nested models (LR-Test/Chi-square difference test)
  • Extracting factor values (SEM)
  • Exploratory structural equation modeling (ESEM, only lavaan)
  • Multilevel SEM/CFA/Path analysis (only lavaan)

Equivalence Testing

  • Equivalence testing for correlations
  • Equivalence testing for group differences
  • Equivalence testing for regression coefficients