Title

A multi-method latent state-trait model for structurally different and interchangeable methods

Document Type

Article

Journal/Book Title/Conference

Psychometrika

Volume

82

Issue

1

Publisher

Psychometric Society

Publication Date

11-30-2016

First Page

17

Last Page

47

DOI

10.1007/s11336-016-9541-x

Abstract

A new multiple indicator multilevel latent state-trait (LST) model for the analysis of multitrait-multimethod-multioccasion (MTMM-MO) data is proposed. The LST-COM model combines current CFA-MTMM modeling approaches of interchangeable and structurally different methods and LST modeling approaches. The model enables researchers to specify construct and method factors on the level of time-stable (trait) as well as time-variable (occasion-specific) latent variables and analyze the convergent and discriminant validity among different rater groups across time. The statistical performance of the model is scrutinized by a simulation study and guidelines for empirical applications are provided.

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