Howto5.md

title	A complete Example
author	Keon-Woong Moon
output	html_document

A complete example

In this chapter, I will show the complete example using the ADHD data. This data is a dataset contains measures about the 334 teacher's knowlege, empathy and intervention about attention-deficit hyperactivity disorder(ADHD).The figure below contains a graphical representation of the model that we want to fit.

Do it at once

You can finish the analysis using above model at once. Select ADHA data among Select Example select Input. By selecting the example, the data will be changed to ADHD and the equation will be made automatically(arrows).

Press the do Analysis button and you will be able to get the anlaysis results and plot.

Press the reset example button to reset the equation. I will show you how to make the structural equations in this study.

Step 1. Define latent variables

First of all, let's start from defining the latent variables.

Define the latent variable knowledge

Please type the knowledge in the Enter latent variable textbox. The operator =~ will be added to the left variable.

Select the general,symptoms and treatmt among the rigth var select input. The right var(s) you selected is added to the temporary equation. Press the add to equation button(arrow).

The temporary equation is added to equation.

Define latent variables - empathy and intervention

Please define the latent variable empathy. The empathy is measured by attitude, disposit, emotion and cognitiv. The intervention is measured by classrm and instruct.

empathy =~ cognitiv + emotion + disposit + attitude
intervention =~ classrm + instruct

After completion of defining the latent variables, the equation should be like as follows.

If you select the plot preview checkbox(arrow), you will be able to get the following plot.

Step 2. Define the mediation effect

Please select the Mediation Effect Analysis checkbox(1). Select knowledge as the independent variable(2), select empathy as mediator(3) and select intervention as the response variable(4). Adn press the Make Equation button.

The mediation effect equation will be aded to the equation. The final equation will be as follows.

knowledge =~ general+symptoms+treatmt
empathy =~ cognitiv+emotion+disposit+attitude
intervention =~ classrm+instruct

intervention ~ b*empathy + c*knowledge
empathy ~ a*knowledge
indirect effect:=a*b
total effect:=c+(a*b)

By press the do Analysis button, you will get the results of analysis as well as the following plot.

To customize your plot, please read the customize you plot chapter.