Specifically designed to provide a rigorous, yet accessible introduction to the basic components of structural equation models, this book presents the notation and tools that are required to understand the subject matter. These include covariance algebra, implied moments of variables, and path analysis conventions. In addition to highlighting the steps for specifying, identifying, estimating, assessing, and respecifying structural equation models, the book also supplies separate chapters on each of the major types of models, including simultaneous equations, confirmatory factor analysis, and the general latent variable.