Tests the hypothesis that there is no monotonic relationship between increasing competence in different linguistic domains and growth in second-language proficiency. The article concludes with an introduction to some assessment models that can accommodate discontinuous growth patterns. These models can describe and model a student's qualitative…

Presents a framework for studying the effects of the Maturation Hypothesis on the problem of language learning, parametrically conceived, and offers a method for finding all existing maturational solutions for any parametric hypothesis space and any learning algorithm that differs from Gibson and Wexler's Triggering Learning Algorithm. (27…

Describes two surveys of three libraries on a university campus, one conducted in 1987 and one in 1993, that investigated how library staff reacted to the library automation process. The hypotheses that were tested are discussed, and results are compared to a similar survey conducted in 1985. (LRW)

Uses a social network approach to examine how work and friendship ties in a university research group were associated with the kinds of media used for different kinds of information exchange. The use of electronic mail, unscheduled face-to-face encounters, and scheduled face-to-face meetings predominated. (Author/LRW)

It is a relief to read an analysis of the Internet that is not yet another contribution to the hyped-instrumentalist discourse typified by a "gee-whiz" ethos touting efficiency gains and the lasting technical transformation of education. Hubert Dreyfus' (2001) "On the Internet" is at one and the same time, philosophical, post-Nietzschean and also…

This study evaluated Holland's (1973, 1985, 1997) structural hypotheses--circular order and circumplex--in two populations in China at both the subtest (Activities, Competencies, Occupational Preferences, and Self-ratings on Abilities) and the entire test levels of the Self-Directed Search (SDS; Holland, 1994). Confirmatory factor analyses…

The authors show how the work of Nobel Laureates in economics can enhance student understanding and bring them up to date on topics such as probability, uncertainty and decision theory, hypothesis testing, regression to the mean, instrumental variable techniques, discrete choice modeling, and time-series analysis. (Contains 2 notes.)

Latent class analysis (LCA) provides a means of identifying a mixture of subgroups in a population measured by multiple categorical indicators. Latent transition analysis (LTA) is a type of LCA that facilitates addressing research questions concerning stage-sequential change over time in longitudinal data. Both approaches have been used with…

I tested whether students' reported use and perceived helpfulness of textbook pedagogical aids and other instructional methods (e.g., group discussion) related to better exam performance. More than 200 undergraduates rated 10 commonly used pedagogical aids and instructional techniques. Students reported using boldface and italics terms and…

The present study examines the relation between psychopathy and the Big Five dimensions of personality in two samples of adolescents. Specifically, the study tests the hypothesis that the aspect of psychopathy representing selfishness, callousness, and interpersonal manipulation (Factor 1) is most strongly associated with low Agreeableness,…

Water quality experiments, especially the use of macroinvertebrates as indicators of water quality, offer an ideal context for connecting statistics and science. In the STAR program for secondary students and teachers, water quality experiments were also used as a context for teaching statistics. In this article, we trace one activity that uses…

In earlier work we have shown that adults, young children, and infants are capable of computing transitional probabilities among adjacent syllables in rapidly presented streams of speech, and of using these statistics to group adjacent syllables into word-like units. In the present experiments we ask whether adult learners are also capable of such…

This study investigated the effects of left and right intracranial tumors on picture and word recognition memory. We hypothesized that left hemispheric (LH) patients would exhibit greater word recognition memory impairment than right hemispheric (RH) patients, with no significant hemispheric group picture recognition memory differences. The LH…

In this paper we report the results of an experiment in which subjects read syntactically unambiguous and ambiguous sentences which were disambiguated after several words to the less likely possibility. Understanding such sentences involves building an initial structure, inhibiting the non-preferred structure, detecting that later input is…

School effectiveness research and school improvement research are central in this article. Based on a study of the literature, the hypothesis is put forward that merging both research traditions might be favourable to fostering the quality of education. A theoretical model is developed for School Improvement in terms of Performance Indicators…