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991.
This is a summary of data on doctoral dissertations completed in instructional design and technology programs over the period 1977–88. During this period, 1,518 dissertations were completed at 46 different institutions, with nearly half completed at only 7 institutions. The 1,518 dissertations were chaired by 286 different professors, but approximately half were chaired by just 39 professors. The number per professor ranged from 89 to 1. Output was fairly steady over the 12 years, averaging 127 per year, with a low of 106 in 1980 and a high of 149 in 1983 and 1985.  相似文献   
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994.
This paper analyses two pedagogical case studies (PCS) from a multidisciplinary perspective to highlight the problems of theoretical knowledge in tertiary physical education teacher education (PETE) programmes, school-based physical education (PE) practice and continuous professional learning (CPL) in PE. We argue that a critical view of tertiary PETE and PE teacher educator CPL practice or practices is particularly important if PETE programmes want to develop future PE and current teacher practitioners who are transformative agents. In setting up the pedagogical case study accounts, we recall common conversations about the bodies of knowledge in tertiary PETE programmes that have been positioned as problematic. The accounts highlight the existence of an artificial divide between PE educators as theory generators and both pre-service PE teachers and school-based PE practitioners as theory appliers. We suggest that part of the reason why this divide exists can be attributed to a general misunderstanding of theoretical and practical knowledge that have been wrongly compartmentalised into ‘theory’ and ‘practice’, and hence erroneously taught as isolated entities without any connection or direct link with each other, or the former considered to be less relevant and perhaps even irrelevant in practice.  相似文献   
995.
A controversy whether developmental dyslexia is qualitatively different from other forms of reading disability has existed among reading specialists for many years because poor readers, regardless of the labels attached to them, resemble each other symptomatically (i.e., in reading achievement). For this reason, it is difficult to establish a priori criteria based on symptoms to identify dyslexia and compare it with other forms of reading disability. One possible solution to this impasse is to see if poor readers differ in the etiology of their reading disability and, if they do, then to see whether one group of poor readers fits the traditional definition of dyslexia. This strategy was adopted in the present study. In this paper, it was hypothesized that the etiology of dyslexia is different from that of other forms of reading disability because there is a difference in the components that malfunction in dyslexia and other forms of reading disability. Studies have shown that the two components that account for a large proportion of variance in reading are decoding and comprehension. Previous studies also indicate that dyslexic children are deficient in decoding skills but not necessarily in comprehension. In this study, reading-disabled children were divided into two groups on the basis of their listening comprehension. Children whose listening comprehension was at or above grade level were placed in one group; poor readers with below-grade-level listening comprehension were placed in the second group. Both groups, however, were matched for reading comprehension. The two groups and a control group of normal readers were administered a number of tasks that were designed to assess the efficiency of the components of reading. It was found that poor readers with normal listening comprehension were deficient in tasks that involved grapheme-phoneme conversion (Component I, decoding). When tested on tasks that minimized decoding requirements, their reading comprehension was comparable to that of normal readers. In contrast, the group with sub-average listening comprehension was poor in measures of reading comprehension, even when decoding requirements were minimal. With the exception of very few children, this group also had adequate decoding skills. Because poor readers with normal listening comprehension had average or above average IQ, they conform to the traditional definition of dyslexia. Poor readers with below average listening comprehension had below average IQ and could be considered as “general reading backward.” It was, therefore, concluded that the etiology of developmental dyslexia is different from that of general reading backwardness. In this paper, the termetiology refers to proximal causal factors such as decoding and comprehension and not to distal causal factors such as genetic and neurological characteristics.  相似文献   
996.
This study examines the relationship between the quality of school, family, and community partnership programs and student performance on state-mandated achievement tests. Data from 82 elementary schools, located in a large urban area, were collected to explore the relationship between family and community involvement and students' achievement test performance. Analyses show that, controlling for school characteristics, the degree to which schools were working to overcome challenges to family and community involvement predicted higher percentages of students scoring at or above satisfactory on state achievement tests. The findings suggest that schools' efforts to involve families and the community in students' learning may be a useful approach to help students achieve in school, especially for students in early elementary grades. Also, the findings illustrate the importance for schools located in large urban areas to address obstacles to family and community involvement to realize the benefits associated with family and community involvement.  相似文献   
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On the Path to College: Three Critical Tasks Facing America's Disadvantaged   总被引:1,自引:0,他引:1  
A middle high school student's likelihood of continuing on to college or university rests on the completion of at least three critical tasks: (a) acquiring at least minimal college qualification, (b) actually graduating from high school, and (c) applying to a 4-year college or university. Eighty-one percent of those 1988 eighth graders who completed these three tasks enrolled in college by 1994. The path to college among socioeconomically disadvantaged middle high school students can best be characterized as hazardous. By 1994, just 1 out of 10 of the original class of 1988 poor eighth graders was attending a 4-year institution. Comparative analyses of lowest and highest SES students reveal substantial differences between these two groups, favoring upper-SES individuals at each of the three tasks on the path to college. These substantial SES-gaps are reduced, if not eliminated, once a number of influential school-based and family background variables are taken into account.  相似文献   
999.
Learner preferences for varying screen density levels were examined using multiple screen designs (high external validity) and single screen designs (high internal validity). When viewing multiple screens for each design in Study 1, subjects indicated the highest preference for medium-density screens while tending to select higher-density over lower density screens in individual comparisons. When viewing only the first screen of each density level in Study 2, subjects again expressed preferences for higher-density over lower-density designs. Suggestions are provided concerning the use of realistic and nonrealistic content for the stimulus materials as well as implications of using externally and internally valid screen designs for future research on computer-based instruction screen design.  相似文献   
1000.
Two experiments investigated the nature and etiology of the reduced activity in the presence of shock produced by prior exposure to inescapable shock. Previous experiments have demonstrated this deficit in the presence of gridshock. However, gridshock hurts less if movement across the grids is reduced. It is thus unclear whether the inescapable-shock-produced deficit represents a facilitation of learning to reduce movement across the grids in order to alleviate pain or is an “unconditioned” reduction in movement in response to shock. The first experiment tested these possibilities by examining the effects of inescapable shock on subsequent movement during shock delivered via fixed tail electrodes to freely moving subjects. Inescapably shocked subjects still moved less in response to shock than did escapably shocked and restrained control subjects. Experiment 2 examined the possibility that this deficit occurs because unconditioned movement in response to shock during pretreatment diminishes after a few seconds, the reduction then being adventitiously reinforced by shortly ensuing shock termination. Activity during inescapable shock was closely monitored by ultrasonic motion detection. Although activity did decrease across trial blocks, the required within-trial patterns did not occur. Shock-elicited activity did not diminish after a few seconds of shock, but remained unchanged across the 5-sec shock presentations.  相似文献   
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