The completion effect in charitable crowdfunding

2020 ◽  
Vol 172 ◽  
pp. 17-32 ◽  
Author(s):  
Nichole Argo ◽  
David Klinowski ◽  
Tamar Krishnamurti ◽  
Sarah Smith
Keyword(s):  
1988 ◽  
Vol 15 (2) ◽  
pp. 95-97 ◽  
Author(s):  
Lawrence M. Schoen

A computer demonstration of the word fragment completion effect was developed to enhance students' comprehension of an experimental paradigm used in cognitive psychology. The robust word fragment completion effect is used to introduce students to the implicit memory paradigm and to illustrate the advantages inherent in such a procedure. The demonstration is a useful tool for comparing and contrasting experimental procedures; it also provides a starting point for a discussion of multiple memory models.


2021 ◽  
Vol 7 (4) ◽  
pp. 244-249
Author(s):  
Kawai Liu ◽  
Julius Wu

We examined the potential different effectiveness of an online homework system (IXL) and the traditional paper-and-pencil homework. A study involving 98 participants was conducted in a middle school (grade 8). We compared the post-test results from the online homework group with the traditional homework group. Both homework assignment effect (class-level) and homework completion effect (student-level) proposed by Trautwein (2007) were investigated. No significant difference was found among the students who were assigned different types of homework (class-level). We conclude that IXL is as effective as the traditional homework on students' learning. Meanwhile, not surprisingly, we revealed that students who complete the homework outperformed the students who did not (student-level). We suggest that teachers give students an option to do online or traditional homework based on their preference, as long as they complete the homework.


2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Haowen Wu ◽  
Chen Yang ◽  
Wenwang Xie ◽  
Wei Zhang

In-depth mining and analysis of electricity data in low-voltage area are essential for the further intelligent development of power grids. However, in the actual data collection and measurement of low-voltage area, there will be missing data, and complete electricity data cannot be obtained. To obtain complete power data, this paper proposes a low-voltage station area missing data complement model based on joint matrix decomposition. First, we analyse the characteristics of the low-pressure station data. Then, a model that comprehensively considers the characteristics of the low-voltage station area data is proposed, which includes three parts: the construction of a low-voltage station area data tensor, the joint matrix decomposition, and the completion of the missing data, and it is named LPZ. After that, the CIM learning algorithm proposed in this paper is used to iteratively solve the model to obtain the completed data. Finally, the method proposed in this paper is used to complement the two situations of random loss and all-day loss of real current data in a low-voltage station area and compared with the traditional complement method. The experimental results show that this method is not only effective but also that the completion effect is better than that of other completion methods.


2014 ◽  
Vol 51 (3) ◽  
pp. 316-327
Author(s):  
Meredith L. Hawthorn-Embree ◽  
Emily P. Taylor ◽  
Christopher H. Skinner ◽  
John Parkhurst ◽  
Meagan L. Nalls

Perception ◽  
10.1068/p2834 ◽  
1999 ◽  
Vol 28 (7) ◽  
pp. 825-834 ◽  
Author(s):  
Akiyoshi Kitaoka ◽  
Jiro Gyoba ◽  
Hideaki Kawabata
Keyword(s):  

1982 ◽  
Vol 54 (2) ◽  
pp. 343-355 ◽  
Author(s):  
Alex Fraser ◽  
Kimerly Wilcox ◽  
Stephanie Storgion

A new visual illusion, filling-in illusion, is reported and compared to the moving visual phantoms of Tynan and Sekuler (1975). 169 unrelated, unpaid, volunteer subjects were recruited from students and faculty and classified as filling-in positive—able to perceive the illusion, or filling-in negative—unable to perceive it. Other investigations examined the effects of light levels, moving vs static test figures, and black-and-white vs shaded figures. A polaroid study suggests a central rather than retinal location of the illusory effect. Filling-in is a contour completion effect, as are moving visual phantoms. Although a number of differences between the two phenomena exist, it is suggested that they may be due to different aspects of a common mechanism.


2011 ◽  
Vol 49 (4) ◽  
pp. 433-442 ◽  
Author(s):  
Meredith L. Hawthorn-Embree ◽  
Christopher H. Skinner ◽  
John Parkhurst ◽  
Elisha Conley

1998 ◽  
Vol 60 (1) ◽  
pp. 193-202 ◽  
Author(s):  
M. KNELLER ◽  
R. SCHLICKEISER

The relativistically correct solution of the dispersion relation of linear plasma waves in an isotropic unmagnetized equilibrium electron plasma leads to two new effects unknown from the nonrelativistic dispersion theory. First, the number of damped subluminal modes is limited to a few (mode-limitation effect); secondly, for relativistic plasma temperatures the few individual modes complement each other in the sense that the dispersion relations ωR=ωR(k) continuously match each other (mode-completion effect). The second effect does not occur at nonrelativistic temperatures.


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