Running online experiments using web-conferencing software

Studies of victim number effects in charitable giving consistently find that people care more and help more when presented with an appeal to help an individual compared with an appeal to help multiple people in need. Across three online experiments ( N = 1,348), Bayesian estimation revealed the opposite pattern when people responded to multiple appeals to help targets of different sizes (1, 2, 5, 7, and 12). In this joint evaluation context, participants donated more to larger groups, when appeals were presented in both ascending order (Study 1) and random order (Study 2). The pattern held whether or not participants saw an overview of all appeals at the start of the study and when a single individual was added to the array (Study 3). These results clarify how compassion fade findings typical of separate evaluations may not generalize to contexts in which people encounter multiple appeals within a short temporal window.

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Optimised Scheduling of Online Experiments

Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval - SIGIR '15 ◽

10.1145/2766462.2767706 ◽

2015 ◽

Cited By ~ 7

Author(s):

Eugene Kharitonov ◽

Craig Macdonald ◽

Pavel Serdyukov ◽

Iadh Ounis

Keyword(s):

Online Experiments

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Regional education on endoscopic surgery using a teleconference system with high-quality video via the internet: Saga surgical videoconferences

BMC Medical Education ◽

10.1186/s12909-020-02215-0 ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Tatsuya Manabe ◽

Mitsuhiro Takasaki ◽

Takao Ide ◽

Kenji Kitahara ◽

Seiji Sato ◽

...

Keyword(s):

Endoscopic Surgery ◽

Educational System ◽

High Speed ◽

The Internet ◽

Web Conferencing ◽

High Quality ◽

Anatomical Structures ◽

Quality Video ◽

High Quality Video ◽

Conferencing System

Abstract Background Effective education about endoscopic surgery (ES) is greatly needed for unskilled surgeons, especially at low-volume institutions, to maintain the safety of patients. We have tried to establish the remote educational system using videoconference system through the internet for education about ES to surgeons belonging to affiliate institutions. The aim of this manuscript was to report the potential to establish a comfortable remote educational system and to debate its advantages. Methods We established a local remote educational conference system by combining the use of a general web conferencing system and a synchronized remote video playback system with annotation function through a high-speed internet. Results During 2014–2019, we conducted 14 videoconferences to review and improve surgeons’ skills in performing ES at affiliated institutions. At these conferences, while an uncut video of ES that had been performed at one of the affiliated institutions was shown, the surgical procedure was discussed frankly, and expert surgeons advised improvements. The annotation system is useful for easy, prompt recognition among the audience regarding anatomical structures and procedures that are difficult to explain verbally. Conclusions This system is of low initial cost and offers easy participation and high-quality videos. It would therefore be a useful tool for regional ES education.

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