Structural Equation Modeling foR Psychologists

_{Last updated 2020-10-30.}

This Github repo contains all lesson files for SEM - Practical Applications in R. The goal is to impart students with the basic tools to construct, evaluate and compare Structural Equation Models (SEM; w/ plots), using lavaan.

These topics were taught in the graduate-level course Structural Equation Modeling (Psych Dep., Ben-Gurion University of the Negev, Spring, 2019). This course assumes basic competence in R (importing, regression modeling, plotting, etc.), along the lines of Practical Applications in R for Psychologists.

Notes:

This repo contains only materials relating to Practical Applications in R, and does not contain any theoretical or introductory materials.
Please note that some code does not work on purpose, to force students to learn to debug.

Setup

You will need:

A fresh installation of R (preferably version 3.6 or above).
RStudio IDE (optional, but recommended).
The following packages, listed by lesson:

Lesson	Packages
01 path analysis	`lavaan`, `tidySEM`, `dplyr`, `ggplot2`, `semPlot`
02 latent variables and hypothesis testing	`lavaan`, `semTools`, `dplyr`, `semPlot`, `psychTools`, `bayestestR`
03 cross-lagged panel model	`lavaan`, `semPlot`, `bayestestR`
04 multiple group analysis	`lavaan`, `bayestestR`, `semPlot`, `semTools`
05 latent growth curve modeling	`lavaan`, `semPlot`
06 assumption checks	`lavaan`, `semTools`, `car`
07 moderation in lavaan	`lavaan`, `semTools`
08 EFA	`parameters`, `psych`, `lavaan`, `semPlot`, `dplyr`, `tidyr`, `psychTools`, `nFactors`

You can install all the packages used by running:

# in alphabetical order:

pkgs <- c(
  "bayestestR", "car", "dplyr", "ggplot2", "lavaan", "nFactors",
  "parameters", "psych", "psychTools", "semPlot", "semTools", "tidyr",
  "tidySEM"
)

install.packages(pkgs, dependencies = TRUE)

Package Versions

The package versions used here:

bayestestR 0.7.5 (CRAN)
car 3.0-10 (CRAN)
dplyr 1.0.2 (CRAN)
ggplot2 3.3.2 (CRAN)
lavaan 0.6-7 (CRAN)
nFactors 2.4.1 (CRAN)
parameters 0.9.0 (CRAN)
psych 2.0.9 (CRAN)
psychTools 2.0.8 (CRAN)
semPlot 1.1.2 (CRAN)
semTools 0.5-3 (CRAN)
tidyr 1.1.2 (CRAN)
tidySEM 0.1.3 (CRAN)

Other Useful Resources

lavaan toutorials.
Sacha Epskamp’s online course and YouTube lectures.
Michael Hallquist’s course.

rcleoni / structural-equation-modeling-for-psychologists Goto Github PK