Von Davier et al. (this issue) describe two analyses that aim at determining whether the constructs measured with a number of observed items are categorical or continuous in nature. The issue of types versus traits has a long history and is relevant in many areas of behavioral research, including personality research, as emphasized by von Davier…

Steinley and Brusco (2011) presented the results of a huge simulation study aimed at evaluating cluster recovery of mixture model clustering (MMC) both for the situation where the number of clusters is known and is unknown. They derived rather strong conclusions on the basis of this study, especially with regard to the good performance of…

Multilevel models used to assess and compare school effectiveness, particularly their application to multivariate data, are critiqued. Problems associated with standard errors of measurement and the various components of "school effect" are highlighted in terms of how they could affect incautious application of the models. (TJH)

Examination of whether annual book budgets have kept pace with demands compares academic library book budgets in Germany and the United States in the mid-20th century with budgets of earlier years, taking into account annual book and serial production; costs of books; and the number of courses, faculty, and students. (Author/CLB)

The technique of multivariate analysis is particularly suited to educational needs assessment research because it allows for the summarization of data across any number of learners or components of educational need to produce a single numerical index of need for each skill examined. In the needs assessment process, educational or training need is…

Describes a study of undergraduate students that was conducted to compare the effectiveness of three computer-assisted career guidance (CACG) systems in terms of their contribution to career decision making and the attitudes of students regarding the helpfulness of CACG. Evaluation standards are discussed, and measurement techniques are explained.…

Describes a study of fifth graders that investigated whether types of revision and quality of writing vary for bilingual and monolingual students when using word processors as compared with paper and pencil. Topics discussed include keyboarding skills, bilingualism, and language art skills. (Contains 27 references.) (LRW)