Introduced are information retrieval strategies based on automatic hierarchic clustering of documents. Cluster-based strategies are shown to be as effective as, and more efficient than, linear associative retrieval. (47 references) (Author/SJ)

The "29th Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act, 2007" follows the 2006--i.e., the 28th annual report--in sequence. The "29th Annual Report to Congress" is, however, the first to have three volumes. In the 28th and previous editions, volume 2 consisted of data tables…

The proposal of the adaptive form of teaching stems from the analysis of tested student characteristics. The testing involved modified questionnaires localized to Czech conditions of teaching (LSI, ISL, ...) in context with e-learning teaching. Based on tipped, most frequently occurred groups of student characteristics, the optimum procedures for…

This article addresses the tools available in the rapidly changing digital learning environment and offers a variety of approaches for how they can assist students with visual, auditory, or kinesthetic learning strengths. Teachers can use visual, auditory, and kinesthetic assessment tests to identify learning preferences and then recommend…

The authors explored patterns of appraising tests in a large sample of 1st-year college students. Cluster analysis was used to identify homogeneous groups of 1st-year students who shared similar patterns of cognitive appraisals about testing. The authors internally validated findings with an independent sample from the same population of students…

Assuming the perception of similarities as a fundamental psychological process, the applicability of a multidimensional scaling, nonmetric technique called MAPP (Mathematical Analysis of Perception and Preference) is demonstrated using three case studies. Any technique which provides paired similarity ranks can be used to collect data necessary…

The purpose of this study is to develop statistical tests for within cluster homogeneity when objects are scored on binary variables. (DEP)

Simulated test data (N=864 artificial data sets) with four different error conditions were used to study the recovery characteristics of the beta-flexible clustering method. Conditions under which the beta-flexible method provides good recovery are discussed. (SLD)

The "29th Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act, 2007" follows the 2006--i.e., the 28th annual report--in sequence. The "29th Annual Report to Congress" is, however, the first to have three volumes. In the 28th and earlier editions, volume 2 consisted of data tables…

School social work is in its infancy in China, yet it has its special advantages in overcoming some increasingly evident social problems among contemporary college students, and it has become the necessary supplement to strengthening and promoting the ideological and political education in colleges and universities. According to the ownership of…