title: ADPROCLUS: a graphical user interface for fitting additive profile clustering models to object by variable data matrices.
abstract: In many areas of psychology, one is interested in disclosing the underlying structural mechanisms that generated an object by variable data set. Often, based on theoretical or empirical arguments, it may be expected that these underlying mechanisms imply that the objects are grouped into clusters that are allowed to overlap (i.e., an object may belong to more than one cluster). In such cases, analyzing the data with Mirkin's additive profile clustering model may be appropriate. In this model: (1) each object may belong to no, one or several clusters, (2) there is a specific variable profile associated with each cluster, and (3) the scores of the objects on the variables can be reconstructed by adding the cluster-specific variable profiles of the clusters the object in question belongs to. Until now, however, no software program has been publicly available to perform an additive profile clustering analysis. For this purpose, in this article, the ADPROCLUS program, steered by a graphical user interface, is presented. We further illustrate its use by means of the analysis of a patient by symptom data matrix.
authors.affiliation: Research Group of Quantitative Psychology and Individual Differences, Department of Psychology, Katholieke Universiteit Leuven, Tiensestraat 102, Box 3713, 3000, Leuven, Belgium. tom.wilderjans@psy.kuleuven.be
authors.forename: Tom F
authors.initials: TF
authors.lastname: Wilderjans
authors.forename: Eva
authors.initials: E
authors.lastname: Ceulemans
authors.forename: Iven
authors.initials: I
authors.lastname: Van Mechelen
authors.forename: Dirk
authors.initials: D
authors.lastname: Depril
mesh_terms: D000465:Algorithms; D001525:Behavioral Sciences / Q000706:statistics & numerical data*; D016000:Cluster Analysis; D003627:Data Interpretation, Statistical; D001330:Electronic Data Processing; D006801:Humans; D020407:Internet; D015233:Models, Statistical; D012984:Software; D014584:User-Computer Interface