Contends that structural equation modeling is appropriate whenever models of relationships among variables need to be estimated and tested. Answers some common questions about the methodology of structural equation modeling. Describes the Linear Structural Relations computer program and its use. Concludes that structural equation modeling is a…

Describes two strategies for assessing measures of practical fit and the goodness of fit from structural equation models. Focuses on linear structural relations (LISREL), chi-square fit index, practical fit indices, and hierarchical analyses. Includes empirical example of hierarchical model procedures used with practical and statistical indices to…

Develops basic concepts of generalizability theory using hypothetical study of reliability of scores of vocational interest inventory. Asserts that generalizability theory makes it possible to consider all possible sources of unreliability simultaneously and to design optimal decision-making study. (NB)