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Assessing invariance
The invariance of a model is often of interest if the sample data consist of data from different groups such as
males and females, different political parties, freshmen, sophomores, juniors and seniors, etc. In this section,
we illustrate how LISREL can be used to assess various levels of invariance across groups
The measurement model
We consider six psychological tests for Junior High students. These six psychological tests are theoretically
constructed to measure the visual perception and verbal ability of Junior High students. A path diagram for
the corresponding measurement model for visual perception and verbal ability is shown in Figure 1.
LISREL结构方程模型软件
SSI创建于1971年,旨在应用统计理论,开发新的统计软件和完善已有的统计软件。产品被广泛应用于统计、社会科学、医药健康、教育、经济、工商管理、市场、环境科学、工程以及其他研究领域。每年,通过应用SSI软件得出的结果而在国际性刊物上发表的不计其数。
SURVEYGLIM
SURVEYGLIM拟合简单随机和复杂调查设计中的广义线性模型(GLIMs)到数据中。可用的抽样分布模型如下:
Multinomial
Bernoulli
Binomial
Negative Binomial
Poisson
Normal
Gamma
Inverse Gaussian
MAPGLIM
MAPGLIM执行 Maximum A Priori (MAP)法来拟合广义线性模型到多级数据中。
操作系统
LISREL软件只适用于Windows操作系统。
A new feature implemented in LISREL 10 allows researchers to use a single dataset that contains a group variable that can be defined by
Using the Data Menu when a LISREL system file (.lsf) is opened
By inserting the line $GROUPS=<group variable name> anywhere in the syntax file.
Consider the dataset efficacy_4countries.lsf shown below. There are 4 countries and portion of the data from countries 2 and 3 are shown below.
Select the New option on the File menu to load the New dialog box.
• Select the Path Diagram option from the list box to load the Save As dialog box.
• Enter the name depress.pth in the File name string field.
• Click on Save button to open an empty PTH window.
• Select the Title and Comments option on the Setup menu to load the Title and Comments dialog box.
• Enter the title A CFA model for Depression in the Title string field.
• Click on the Next button to load the Group Names dialog box.
• Click on the Next button to load the Labels dialog box.
• Click on the Add/Read Variables button to load the Add/Read Variables dialog box.
• Select the PRELIS System File option in the Read from file: drop-down list box.
• Click on the Browse button to load the Browse dialog box.
• Select the file DEPRESS.PSF in the TUTORIAL folder.
• Click on the Open button to return to the Add/Read Variables dialog box.
• Click on the OK button to return to the Labels dialog box.
• Click on the Add Latent Variables button to load the Add Variables dialog box.
• Enter the label selfest for Self-esteem in the string field.
• Click on the OK button to return to the Labels dialog box.
• Click on the Add Latent Variables button to load the Add Variables dialog box.
• Enter the label depress for Depression in the string field.
• Click on the OK button to return to the Labels dialog box.
• Click on the Add Latent Variables button to load the Add Variables dialog box.
• Enter the label impuls for Impulsiveness in the string field.
• Click on the OK button to produce the following Labels dialog box.
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