The paper describes the development of a coin-skills curriculum for educable mentally retarded (EMR) children via the application of cluster analysis. Special emphasis is given to two clustering techniques employed to verify clusters of coin skills, and the sequence in which a group of 100 EMR children acquired selected coin skills. (Author/CL)

"Classification: Purposes, Principles, Progress, Prospects" by Robert R. Sokal is reprinted in this document. It summarizes the principles of classification and cluster analysis in a manner which is of specific value to the Marine Corps Office of Manpower Utilization. Following the article is a 184 item bibliography on cluster analysis…

The difficulty of four binary conceptual rules (conjunctive, disjunctive, conditional, and biconditional) was assessed using the rule-learning paradigm in a variety of stimulus populations. (Editor)

Given a set of dichotomously scored items, ordering theory attempts to identify a hierarchy among those items. A graphic representation is presented for an empirically obtained hierarchy and a testing procedure to evaluate hypothesized hierarchical relationships. (Author/JKS)

This paper presents a study designed to determine if groups of concrete and formal operational children can be identified through the technique of cluster analysis, using a battery of Piagetian tasks. A Total of 64 subjects, 8 boys and 8 girls from each of the second, fourth, sixth, and eighth grade levels, were selected from a public elementary…

As part of a research program investigating the interlanguage lexicon of Kenyan learners of English, based on the lexical field of locomotion, a card sorting task was used to produce raw similarity measure data. This was subjected to cluster analysis and multidimensional scaling (MDS). This paper suggests that cluster analysis/MDS of perceived…

Research on 128 children is presented as evidence of the superiority of a new clustering measure (X) over a more traditional "chance clustering" measure (sigma) as a means of organizing material to be learned to facilitate recall. X is shown to meet three criteria for a measure of a developmental process: X is more highly correlated with recall…

This report is an analysis of an investigation of staffing requirements for librarianship and information work carried out between 1972 and 1975 under the title of Sheffield Manpower Project. The results of the administration of a job descriptive questionnaire to members in a representative 45 per cent sample of libraries and information units (19…

Learning-disabled ninth-graders (n=58) completed a modified Piagetian isolation-of-variables task, and were compared to normally achieving ninth-graders and fourth-graders. Through cluster analysis, four different patterns of task approach were identified, representing normal performance, general conceptual disorder, specific developmental delay,…

The purpose of this study was to complete a job analysis of the Air Force's Medical Service Career Field. This is the first in a series of reports designed to compare and make recommendations concerning the role of the Nurse and Medical Corpsman in the Air Force's health care delivery system. A sample of 1,996 airmen in the Medical Service Career…

This learning activity package (LAP) titled Occupational Cluster Analysis for Disadvantaged Vocational Learners is one of a series designed to develop competencies needed by vocational teachers working with disadvantaged students. Each LAP concentrates on one general vocational teacher competency and contains the following sections: an…

The study of task identification in clothing, apparel, and textile services presents statistical correlations of task frequencies obtained by questionnaire in six task clusters for the occupations of fabric specialist, tailor, alternation specialist, dry cleaner, launderer, and clothing apparel and textile service occupations. One-way matrices…

The research study was undertaken to provide data on skills and competencies to aid persons developing curricula for electromechanical technician training programs. Through a 73.8 percent return of 212 questionnaires distributed to Iowa electromechanical technicians, five occupational areas were identified as representative: residential appliance…

The study of task identification in institutional and household maintenance presents statistical correlations of task frequencies obtained by questionnaire in 10 task clusters for the occupations of executive housekeeper, supervising housekeeper, housekeeping director, custodian, homemaker/home health aide, hotel/motel housekeeping aide, nursing…

Research explored methods of providing a coherent framework for the Instructional Systems Development (ISD) model which would promote better system evaluation, internal communications and student testing. Lists of critical tasks for two Air Force specialties were compiled and multidimensional scaling and hierarchical cluster analysis employed to…