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21.
T. Gary Waller 《Learning & behavior》1974,2(4):298-304
Experiment I compared constant (CI), variable-between (VBI), and variable-within (WVI) irrelevant cues during an extradimensional (ED) shift discrimination. Performance was better for CI than for VBI and better for VBI than for VWI. Experiment II combined CI, VBI, and VWI cues with ED or intradimensional (ID) shifts. Irrelevant-cue conditions did not affect ID performance but did affect ED performance. The typical superiority of ID, as compared to ED, shifts was observed in the VWI condition but not in the CI condition. Implications for mediating-response (i.e., attention or observing-response) theories were indicated. 相似文献
22.
In this paper, we focus on the potential innovative benefits to corporate venture capital (CVC), i.e. equity investments in entrepreneurial ventures by incumbent firms. We propose that corporate venture capital programs may be instrumental in harvesting innovations from entrepreneurial ventures and thus an important part of a firm's overall innovation strategy. We hypothesize that these programs are especially effective in weak intellectual property (IP) regimes and when the firm has sufficient absorptive capacity. We analyze a large panel of public firms over a 20-year period and find that increases in corporate venture capital investments are associated with subsequent increases in firm patenting. 相似文献
23.
Gary James 《国际体育史杂志》2016,33(10):1169-1187
AbstractIn recent years, there has been a wealth of research into how the game of association football developed. However, rather than establishing a common theme this research has led to competing theories with the debate dividing opinion on how the game of football was developed and propagated. While debate is healthy, the approach taken by some could lead to fellow academics looking to those engaged in sport history as unprofessional. This paper seeks to propose a way forward with academics working towards an all-encompassing history of the sport, by suggesting the adoption of a framework based on the work of Fernand Braudel, where indepth analysis of individual events is combined with the identification of transformational cycles. The paper concludes by suggesting that historians interested in soccer’s early history work together within the framework to develop a more detailed and all-encompassing early history of the sport. This framework will not claim that either the orthodox or revisionist view is accurate, instead it will determine how best to work those debates into an all-encompassing approach while searching for detailed evidence on what was actually occurring at local levels. 相似文献
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T. Gary Waller 《Learning & behavior》1973,1(1):65-67
Rats were first either trained to criterion or given overtraining on an orientation discrimination and then were given an extradimensional shift to a position discrimination. Overtraining on the visual discrimination facilitated performance on the position discrimination. Implications for mediational theories of discrimination learning were indicated. 相似文献
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To what extent do students and teachers hold similar beliefs about excellent teaching? Do differences in beliefs have practical implications (e.g., how students rate their teachers on end-of-semester evaluation forms)? In Study 1, undergraduate students (N=414) and faculty members (N=128) responded to questionnaires assessing their perceptions of an excellent discussion leader, lecturer, or instructor. Participants judged items that contributed to a Structure composite as more characteristic of excellent lecturers than excellent discussion leaders and items that contributed to a Process composite as more characteristic of excellent discussion leaders than excellent lecturers. Results for students and teachers showed several systematic differences. In Study 2,278 students and their course teachers rated the characteristics of a hypothetical excellent lecturer. In addition, students rated the effectiveness of their individual teachers. Students’ ratings of their teachers were higher when students and teachers agreed on their perceptions of characteristics of excellent lecturers. 相似文献