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Direct linkBrusco, Michael J. – Psychometrika, 2006
Minimization of the within-cluster sums of squares (WCSS) is one of the most important optimization criteria in cluster analysis. Although cluster analysis modules in commercial software packages typically use heuristic methods for this criterion, optimal approaches can be computationally feasible for problems of modest size. This paper presents a…
Descriptors: Multivariate Analysis, Evaluation Criteria, Heuristics, Problem Solving
Zambo, Ron; Follman, John – Focus on Learning Problems in Mathematics, 1994
Investigated gender-related differences in the process of solving routine word problems using a nine-step strategy in (n=153) sixth- and (n=149) eighth-grade students. Females were slightly better than males at following the prescribed problem-solving process. Includes test items. (39 references) (MKR)
Descriptors: Elementary School Students, Grade 6, Grade 8, Heuristics
