title: Dyadic Curve-of-Factors Model: An Introduction and Illustration of a Model for Longitudinal Non-Exchangeable Dyadic Data.
abstract: The analysis of longitudinal data collected from non-exchangeable dyads presents a challenge for applied researchers for various reasons. This paper introduces the Dyadic Curve-of-Factors Model (D-COFM) which extends the Curve-of-Factors Model (COFM) proposed by McArdle (1988) for use with non-exchangeable dyadic data. The D-COFM overcomes problems with modeling composite scores across time and instead permits examination of the growth in latent constructs over time. The D-COFM also appropriately models the interdependency among non-exchangeable dyads. Different parameterizations of the D-COFM are illustrated and discussed using a real dataset to aid applied researchers when analyzing dyadic longitudinal data.
authors.affiliation: The University of Texas at Austin.
authors.forename: Tiffany A
authors.initials: TA
authors.lastname: Whittaker
authors.affiliation: The University of Texas at Austin.
authors.forename: S Natasha
authors.initials: SN
authors.lastname: Beretvas
authors.affiliation: The University of Texas at Austin.
authors.forename: Toni
authors.initials: T
authors.lastname: Falbo