By Tenko Raykov
This e-book is designed to introduce scholars to the fundamentals of structural equation modeling via a conceptual, nonmathematical technique. The few mathematical formulation integrated are utilized in a conceptual or illustrative nature, instead of a computational one. The booklet good points examples from LISREL and EQS. as a result, the e-book is usually used as a starting advisor to studying easy methods to organize enter records to slot the main popular kinds of structural equation types with those courses. meant as an creation for graduate scholars or researchers in psychology, schooling, enterprise, and different utilized social and overall healthiness sciences. the single prerequisite is a uncomplicated records direction.
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Extra info for A First Course in Structural Equation Modeling
The use of the keyword /END signals the end of the EQS input file. 16 /END; page_52 Page 53 A Useful Abbreviation Each of the command lines in this EQS input file can also be abbreviated, usually to the first three letters of the keyword. This often saves a considerable amount of time for the researcher setting up numerous input files. , the last part of the simple flowchart, regarding special output) because no output information beyond that provided by EQS by default was needed. However, later in this book such specifications, which either relate to the execution of the iteration process or ask the page_53 Page 54 program to list information that it otherwise does not provide automatically, are included.
Thus, the null model represents the extreme case of no relationships and the interest lies in comparing the proposed model to the null model. , relative to the null model). This is the basic idea that underlies the NFI and NNFI descriptive-fit indices. page_38 Page 39 The NFI is computed by relating the difference of the chi-square value for the proposed model to the chi-square value for the independence or null model. The NNFI is a simple variant of the NFI that takes into account the degrees of freedom of the proposed model.
However, when the SEM model includes both a measurement part and a structural part, X is usually used to denote the observed variables of the predictor latent variables and Y is used for the observed variables of the outcome latent variables. page_54 Page 55 latent variables constitute the structural model. To avoid any confusion, however, throughout this book these two models are referred to as the measurement and structural parts of a structural equation model. Measurement Part Notation Consider the factor analysis example displayed in Fig.
A First Course in Structural Equation Modeling by Tenko Raykov