title: OpenMx: An Open Source Extended Structural Equation Modeling Framework.
abstract: OpenMx is free, full-featured, open source, structural equation modeling (SEM) software. OpenMx runs within the R statistical programming environment on Windows, Mac OS-X, and Linux computers. The rationale for developing OpenMx is discussed along with the philosophy behind the user interface. The OpenMx data structures are introduced - these novel structures define the user interface framework and provide new opportunities for model specification. Two short example scripts for the specification and fitting of a confirmatory factor model are next presented. We end with an abbreviated list of modeling applications available in OpenMx 1.0 and a discussion of directions for future development.
authors.affiliation: University of Virginia.
authors.forename: Steven
authors.initials: S
authors.lastname: Boker
authors.forename: Michael
authors.initials: M
authors.lastname: Neale
authors.forename: Hermine
authors.initials: H
authors.lastname: Maes
authors.forename: Michael
authors.initials: M
authors.lastname: Wilde
authors.forename: Michael
authors.initials: M
authors.lastname: Spiegel
authors.forename: Timothy
authors.initials: T
authors.lastname: Brick
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Spies
authors.forename: Ryne
authors.initials: R
authors.lastname: Estabrook
authors.forename: Sarah
authors.initials: S
authors.lastname: Kenny
authors.forename: Timothy
authors.initials: T
authors.lastname: Bates
authors.forename: Paras
authors.initials: P
authors.lastname: Mehta
authors.forename: John
authors.initials: J
authors.lastname: Fox