Few would argue that psychology has been as successful as the natural sciences in constructing measurement systems, yet this has not tempered the near universal claim of psychological measurement. As Haig and Denny Borsboom note, the sustained nature of conceptual attacks from a small group of quantitative psychologists suggests a deep-seated…

The clue to what latent variable models are, and to a workable account of the basis for the traditional manifest/latent variable distinction, lies in a reconsideration of the indeterminacy property of linear factor structures. In this article, the authors contend that latent variable models are not detectors of unobservable latent structures,…

Michael Kane comments on three articles in this issue: (1) "Is Psychometrics Pathological Science?" (Joel Mitchell); (2) "Latent Variable Theory" (Denny Borsboom); and (3) "Constructs, Concepts, and the Worlds of Possibility" (Keith Markus). He states that the common thread in these three articles is the goal of putting measurement practice on a…