Quarterly of Educational Measurement

Application of structural equation models to estimate reliability and validity of psychological tests and assess the reliability and validity of adult ADHD diagnostic scale

Document Type : Research Paper

Authors

maryam moghadasin
mohammad reza falsafi nejhad
Abstract
Two important objectives for measuring the variable in behavioral an dcomplex causal relationships between variables. Beasurement asks about what is measured by observed variables ? and how ew can determine the validity and reliability of variables? The latter responds to this question: since the variables are not directly observable and measurable and only reflected in observed variables with measurement error how complex causal relatonships between these variables can be inferred? How the relationships between latent variables can be measured? In response to these kinds of question are evaluated by the measurement model and that of the second one are evaluated by the structural function model.

Keywords

structural equations
variance covariance matrix
estimation methods
model fit
Confirmatory Factor Analysis

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