Multivariate Taxometric Procedures
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Multivariate Taxometric Procedures
Distinguishing Types from Continua



© 1998 | 160 pages | SAGE Publications, Inc
Can taxometric procedures be used to distinguish types (species, latent classes, taxa) from continua (dimensions, latent traits, factors); and, if so, how? Aimed at demystifying this process, Niels G. Waller and Paul E. Meehl unpack MeehlÆs work on the MAXCOV-HITMAX procedure to reveal the underlying rationale of MAXCOV in simple terms and show how this technique can be profitably used in a variety of disciplines by researchers in their taxonomic work. The book begins with a discussion of the misconceptions concerning the psychometric and philosophical status of taxonic constructs; and, next reviews several meanings of the term "taxon" and the philosophy of science that has guided the authorsÆ work in this area. The authors then describe MAXCOV-HITMAX and demonstrate how MAXCOV uses the general covariance mixture theorem to test taxonic hypotheses (using utility programs written in S-Plus that appear in the appendixes to do the taxometric procedures). Using many clear examples and illustrations, they next introduce two new taxometric procedures, MAXEIG-HITMAX (MAXEIG) and L-Mode, for the simultaneous analysis of multiply taxon indicators, and contrast these techniques with other data clustering and classification methods, such as latent profile analysis and Q-techniques factor analysis. Lastly, they provide guidelines for corroborating taxonic models and describe the role of taxometrics in scientific methodology. This book will appeal to those professionals and practitioners in statistics, research methods, evaluation, measurement, survey research, sociology, psychology, education research, communication research, policy studies, management, public health, and nursing.
 
Introduction
Carving Nature at Its Joints  
 
Defining Nature's Joints
Alternative Meanings of Taxon  
 
Mathematical Foundations of Multivariate Taxometrics
 
MAXEIG-HITMAX
A Multivariate Generalization of MAXCOV  
 
Factor Analytic Techniques for Distinguishing Types from Continua
L-Mode  
 
Factor Analytic Techniques for Distinguishing Types from Continua
Q-Factor Analysis  
 
Taxometrics in Scientific Methodology

"It is an extraordinary intelligent yet accessible explication of taxometric procedures—their logic, analytical steps, and underlying philosophy of science—linking them to factor analytic methods traditionally used to analyze contrivances for underlying continuous differences." 

Steve Gangestad
Psychology, University of New Mexico, Albuquerque

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ISBN: 9780761902577