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相关概念视频

Confirmation Biases01:31

Confirmation Biases

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The confirmation bias is the tendency to focus on information that confirms our existing beliefs and ignore information that is inconsistent with our expectations. For example, if you think that your professor is not very nice, you notice all of the instances of rude behavior exhibited by the professor while ignoring the countless pleasant interactions he is involved in on a daily basis. Have you ever fallen prey to the confirmation bias, either as the source or target of such bias?
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Observational Studies01:11

Observational Studies

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Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
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Structuralism01:26

Structuralism

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Structuralism, an early psychological theory developed by Wilhelm Wundt and his student Edward Bradford Titchener, sought to dissect the human mind into its most fundamental components. Wundt's groundbreaking work in his laboratory set the stage for Titchener to define structuralism's goal as cataloging the "atoms" of the mind—sensations, images, and feelings—akin to how chemists identify elements of matter.
Titchener's approach to structuralism was unique. He...
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Null and Alternative Hypotheses01:16

Null and Alternative Hypotheses

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The actual hypothesis testing begins by considering two hypotheses. They are termed  the null hypothesis and the alternative hypothesis. These hypotheses contain opposing viewpoints.
The null hypothesis, denoted by H0 is a statement of no difference between the variables—they are not related. This can often be considered the status quo. As  a result if you cannot accept the null, it requires some action.
The alternative hypothesis, denoted by H1 or Ha, is a claim about the...
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Hindsight Biases01:12

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Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now? 
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The Anchoring-and-Adjustment Heuristic01:25

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In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
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相关实验视频

Updated: Sep 17, 2025

Dissociation of the Confounding Influences of Expectancy and Integrative Difficulty Residing in Anomalous Sentences in Event-related Potential Studies
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趋向于三元关闭的趋势:实地实验证据

Mohsen Mosleh1,2, Dean Eckles2,3, David G Rand2,3,4

  • 1Oxford Internet Institute, Social Sciences Division, University of Oxford, Oxford OX1 3JS, United Kingdom.

Proceedings of the National Academy of Sciences of the United States of America
|June 30, 2025
PubMed
概括

社交网络用户在获得共同追随者的最小提示时,形成新联系的可能性高出35%. 这凸显了在线社交网络中三元封闭倾向的作用.

关键词:
实地实验是一种实地实验.社交网络的形成过渡性的过渡性.

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相关实验视频

Last Updated: Sep 17, 2025

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科学领域:

  • 社交网络分析 社交网络分析
  • 计算社会科学 计算社会科学
  • 社会学 社会学 社会学

背景情况:

  • 经验性社交网络表现出高度的三元关闭,相互连接的邻居也很可能连接.
  • 在许多环境中,将三元关闭与其他机制 (如同性恋和暴露) 脱而出是具有挑战性的.
  • 社交媒体平台为分解和研究这些网络形成过程提供了独特的机会.

研究的目的:

  • 实验性地分离和量化三元封闭倾向对社交媒体中纽带形成的影响.
  • 区分直接线索对三元关闭的影响与其他网络形成驱动因素.
  • 调查事先存在的纽带强度如何影响三元关闭的可能性.

主要方法:

  • 在社交媒体平台上进行了实地实验.
  • 随机化了当受控账户跟随用户时呈现给用户的网络结构.
  • 实施多个控制条件以隔离最小的相互追随符号的影响.

主要成果:

  • 用户在随机分配到与追随者的现有连接时,有35%的可能性更高地回报一个平局.
  • 这种效应被特别归因于存在一个最小的提示,表明潜在的相互追随者.
  • 当用户与现有追随者有更多的先前互动时,三元关闭的趋势更强烈.

结论:

  • 三元关闭倾向在社交媒体纽带形成中发挥着重要作用,尽管可能比以前从观察性研究中推断的要小.
  • 最小的线索表明相互连接可以大大增加纽带的形成.
  • 了解这些趋势对网络结构,信息传播和平台设计都有影响.