An Observational and Planning Tool for Professional Development in Science Education

Since there is an increasing recognition to address the need to move practicing teachers to a higher standard of practice, mentoring or coaching has been receiving increasing attention. A variety of tools has been developed to make these relationships more effective. Work within a recent mentor project indicated current tools were not detailed enough for mentors to provide effective feedback to mentees. This paper presents a more detailed tool and describes categories of pedagogical practices related to an extended inquiry-cycle model. During the course of the project, mentors and mentees also used this tool for adapting existing curriculum to a more standards-based mode of instruction, thus having it function as a planning tool.

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Intrapersonal and Interpersonal Theories of Motivation from an Attributional Perspective

Two related attribution theories of motivation are examined. One, an intrapersonal theory, includes self-directed thoughts (particularly expectancy of success) and self-directed emotions (pride, guilt, and shame). The second is an interpersonal theory and includes beliefs about the responsibility of others and other-directed affects of anger and sympathy. These two theories are respectively guided by the disparate metaphors of the person as a scientist and the person as a judge. Some experimental evidence supporting the conceptions and the range of phenomena that they incorporate are examined.     

Incentive learning and the motivational control of instrumental performance by thirst

The role of incentive learning in instrumental performance following a shift in the degree of water deprivation was analyzed in three experiments. In Experiments 1A and IB, rats trained to perform an instrumental action reinforced with either sucrose or maltodextrin solutions when in a high-deprivation state were subsequently shifted to a low-deprivation state and tested in extinction. This within-state shift in water deprivation reduced instrumental performance only when the animals had been exposed to the reinforcer in the low-deprivation state prior to instrumental training. In Experiment 2, a concurrent training procedure was used to assess whether the change in the value of the reinforcer brought about by preexposurewas mediated by the contingency between the instrumental action and the reinforcer. Preexposure to the reinforcer under the low-deprivation state produced a selective reduction of the performance of the action upon which it was contingent during training when testing was conducted in extinction following a shift from the high- to the low-deprivation state. These experiments provide evidence that animals have to learn about the incentive value of a reinforcer in a particular motivational state through exposure to the reinforcer in that state.     

Contextual cues and memory retrieval in rats: Alleviation of forgetting by a pretest exposure to background stimuli

With a relatively complex maze, reliable forgetting is clearly seen when the training-test interval is 25 days. This forgetting is evidenced by the longer time taken to run the maze and in an increase in the number of errors from the last training trial to the first test trial. In this case, forgetting is a lapse, not a loss, since performance attains the last training trial level at a subsequent test. Furthermore, a reminder which does not in itself contain sufficient information to facilitate performance of a naive animal, significantly improves maze performance of animals which have “forgotten,” even on the first retention test. With the use of additional control groups, it is shown that there must be a memory lapse before contextual cues can be demonstrated to be effective in facilitating memory retrieval.     

Medical students' attitudes toward the anatomy dissection room in relation to personality

Assessment of the personalities of medical students could enable medical educators to formulate strategies for the best development of academic and clinical competencies. In this article, we focus on the experience of students in the anatomy dissecting room. While there have been many attempts to evaluate the emotional responses of medical students to human cadaveric dissection, there has been no investigation into how different personality traits affect the responses. The main hypothesis tested was that there is a relationship between personality traits and attitudes toward the dissection room. For the present study, a group of French medical students (n = 403; mean age 21.3 ± 1.6; 65.3% female) completed a "Big Five" personality inventory and a questionnaire to assess their attitudes in regard to human dissection. The findings are consistent with our hypothesis, in that we found a relationship between reporting anxiety and four of the "Big Five" dimensions (all except openness). The rated level of anxiety was positively correlated with negative affectivity, more strongly at the beginning than at the end of the course. There were significant gender differences in attitudes toward dissection. The findings are discussed in relation to the possibility of preparing students for the dissecting room experience and also in relation to the students' understanding of mortality issues.     

Variation in class size,the class size paradox,and some consequences for students

Even where a total allocation of resources is fixed, it is often possible to vary the distribution of the given resources. This distribution can have important, if sometimes hidden, consequences. In the case of universities, considering the mean class size as given, three nonobvious consequences of the amount of variation in class size are examined. (1) The average class size experienced by students is directly related to the amount of variation in class size. (2) Overall student attendance is inversely related to the amount of variation in class size. (3) Overall student participation time is directly related to the amount of variation in class size. The logic of these relationships is explored, and data on 49 departments and interdisciplinary programs at one university are used to illustrate the nature and extent of the class size paradox at one university.     

Makeover Or Takeover? The strange death of educational autonomy in neo-liberal England

This paper is concerned with the erosion of educational autonomy in Britain in recent years. Employing an analytical framework derived mainly from the recent work of Basil Bernstein, it examines ways in which weakened boundaries between the educational and the economic/political spheres may be linked to attempts by government in Britain to take over, to an unprecedented degree, domains where educators and producers of knowledge have in the past enjoyed significant, although by no means unqualified, autonomy. Implications for changing educational identities are highlighted, as is Bernstein's central contention that we may be witnessing not merely presentational changes, but rather a fundamental redefinition of the relationship between knowledge and the knower. Certain aspects of the political and educational agenda of the present New Labour government are seen as continuing many of the directions of policy set by previous New Right administrations. It is suggested that such continuities at the level of politics and policy indicate the potency of neo-liberal forms of governmentality and the extent to which they have become entrenched. Postmodernist and modernist interpretations of these developments are briefly considered. Obstacles to effective contestation of the new modalities of control are discussed.     

A study of results overlap and uniqueness among major Web search engines

The performance and capabilities of Web search engines is an important and significant area of research. Millions of people world wide use Web search engines very day. This paper reports the results of a major study examining the overlap among results retrieved by multiple Web search engines for a large set of more than 10,000 queries. Previous smaller studies have discussed a lack of overlap in results returned by Web search engines for the same queries. The goal of the current study was to conduct a large-scale study to measure the overlap of search results on the first result page (both non-sponsored and sponsored) across the four most popular Web search engines, at specific points in time using a large number of queries. The Web search engines included in the study were MSN Search, Google, Yahoo! and Ask Jeeves. Our study then compares these results with the first page results retrieved for the same queries by the metasearch engine Dogpile.com. Two sets of randomly selected user-entered queries, one set was 10,316 queries and the other 12,570 queries, from Infospace’s Dogpile.com search engine (the first set was from Dogpile, the second was from across the Infospace Network of search properties were submitted to the four single Web search engines). Findings show that the percent of total results unique to only one of the four Web search engines was 84.9%, shared by two of the three Web search engines was 11.4%, shared by three of the Web search engines was 2.6%, and shared by all four Web search engines was 1.1%. This small degree of overlap shows the significant difference in the way major Web search engines retrieve and rank results in response to given queries. Results point to the value of metasearch engines in Web retrieval to overcome the biases of individual search engines.     

Reaping the Whirlwind: The Wind That Shakes the Barley,Liberation and After in the Movies

Popular culture includes stories that define and justify the existence of groups and nations. Among those stories are creation accounts, especially stories of the forming of nations through struggles for liberation from oppression. The useful liberation myths are exemplified by two recent films: V for Vendetta and Children of Men. Another recent film, The Wind That Shakes the Barley, gives a sober and nuanced account of the Irish Rebellion. It includes the ambiguities of liberation events and the problems that arise and continue after the glorious moment of liberation.