Journal ArticleDOI
Differentiating the Contribution of Elevation, Scatter and Shape in Profile Similarity
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TLDR
In this article, a similarity generating function composed of elevation, scatter and shape parameters is presented, and linear models for integrating these parameters either for euclidean distance or vector-product association indices.Abstract:
The aims of this paper are: (1) to present a similarity generating function composed of elevation, scatter and shape parameters; (2) to describe linear models for integrating these parameters either for euclidean distance or vector-product association indices; and (3) to suggest a computational strategy based upon the Eckart-Young (1936) theorem that has certain advantages for minimizing the effects of measurement error in estimating profile similarity. Given these developments, the investigator may differentiate the independent contribution of each parameter to more global indices of resemblance. A brief example from the classification of psychopathology is discussed.read more
Citations
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Book ChapterDOI
Dynamic but Structural Equation Modeling of Repeated Measures Data
TL;DR: The authors examined multivariate psychological change data using the 20th century developments of latent variable structural equation modeling, and used this dynamic equation, but here they also used this simple dynamic equation to examine multivariate psychology change data.
Journal ArticleDOI
Methodology review: Clustering methods
TL;DR: A review of clustering methodology is presented, with emphasis on algorithm performance and the re sulting implications for applied research, and two sets of recommendations are offered.
BookDOI
An occupational information system for the 21st century: The development of O*NET.
Norman G. Peterson,Michael D. Mumford,Walter C. Borman,P. Richard Jeanneret,Edwin A. Fleishman +4 more
TL;DR: The O*NET Content Model Research Method Development and Field Testing of the Content Model Basic and Cross-Functional Skills Knowledges Occupational Preparation - Education, Training, Experience and Licensure/Certification Generalized Work Activities Work Context Organizational Context Abilities Occupational Interests and Values Work Styles Occupation-Specific Descriptors - Approaches, Procedures and Findings Occupational Descriptor Covariates - Potential Sources of Variance in O *NET Ratings Cross-Domain Analyses Occupation Classification - Using Basic and cross-functional skills and Generalized work
Journal ArticleDOI
Applying Cluster Analysis in Counseling Psychology Research.
Fred H. Borgen,David C. Barnett +1 more
TL;DR: This article provides an introduction and a road map for applying clustering techniques productively to research in counseling psychology and culls those aspects most relevant and useful to psychologists from this literature.
Book ChapterDOI
The Methods and Problems of Cluster Analysis
TL;DR: Cluster analysis methods have a long history. The earliest known procedures were suggested by anthropologists (Czekanowski, 1911; Driver and Kroeber, 1932). Later, these ideas were picked up in psychology.
References
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Journal ArticleDOI
The approximation of one matrix by another of lower rank
Carl Eckart,Gale Young +1 more
TL;DR: In this paper, the problem of approximating one matrix by another of lower rank is formulated as a least-squares problem, and the normal equations cannot be immediately written down, since the elements of the approximate matrix are not independent of one another.
Book
Introduction to matrix computations
TL;DR: Rounding-Error Analysis of Solution of Triangular Systems and of Gaussian Elimination.