lcsm_data

Example dataset with 5 repeated measures of two constructs to illustrate how the package works.

dataset

Helper functions to implement univariate and bivariate latent change score models in R using the 'lavaan' package.
For details about Latent Change Score Modeling (LCSM) see McArdle (2009) <doi:10.1146/annurev.psych.60.110707.163612> and Grimm, An, McArdle, Zonderman and Resnick (2012) <doi:10.1080/10705511.2012.659627>.
The package automatically generates 'lavaan' syntax for different model specifications and varying timepoints.
The 'lavaan' syntax generated by this package can be returned and further specifications can be added manually.
Longitudinal plots as well as simplified path diagrams can be created to visualise data and model specifications.
Estimated model parameters and fit statistics can be extracted as data frames.
Data for different univariate and bivariate LCSM can be simulated by specifying estimates for model parameters to explore their effects.
This package combines the strengths of other R packages like 'lavaan', 'broom', and 'semPlot' by generating 'lavaan' syntax that helps these packages work together.

Milan Wiedemann

lcsm

Univariate and Bivariate Latent Change Score Modelling

Graham M Thew

Urška Košir

Anke Ehlers

Mental Health Research UK 

lcsm_data function

A longitudinal dataset in wide format:<ul>
<li>id: ID variable, unique identifier for each person</li>
<li>x1: x value at time point 1</li>
<li>x2: x value at time point 2</li>
<li>x3: x value at time point 3</li>
<li>x4: x value at time point 4</li>
<li>x5: x value at time point 5</li>
<li>y1: y value at time point 1</li>
<li>y2: y value at time point 2</li>
<li>y3: y value at time point 3</li>
<li>y4: y value at time point 4</li>
<li>y5: y value at time point 5</li>
</ul>

Format

Longitudinal dataset with repeated measures of two constructs — lcsm_data

Longitudinal dataset with repeated measures of two constructs

lcsm_data: Longitudinal dataset with repeated measures of two constructs

Description

Usage

Arguments

Format

Examples