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相关概念视频

Errors occurring during blood pressure monitoring01:25

Errors occurring during blood pressure monitoring

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Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
Several factors...
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Accuracy and Errors in Hypothesis Testing01:13

Accuracy and Errors in Hypothesis Testing

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Hypothesis testing is a fundamental statistical tool that begins with the assumption that the null hypothesis H0 is true. During this process, two types of errors can occur: Type I and Type II. A Type I error refers to the incorrect rejection of a true null hypothesis, while a Type II error involves the failure to reject a false null hypothesis.
In hypothesis testing, the probability of making a Type I error, denoted as α, is commonly set at 0.05. This significance level indicates a 5%...
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Uncertainty in Measurement: Accuracy and Precision03:37

Uncertainty in Measurement: Accuracy and Precision

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Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
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Correlations02:20

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Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
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Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
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Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
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良好的学习者是不好的监测者:学习能力和监测准确性之间的负面关系

Mengqi Hu1, Wenbo Zhao2, Anran Li1

  • 1Institute of Developmental Psychology, Faculty of Psychology, Beijing Normal University.

Psychological science
|August 22, 2025
PubMed
概括

有效的学习需要监控的准确性. 令人惊的是,优秀的学习能力与较差的监测准确性相关,

关键词:
专家缺乏信心学习的判断学习能力进行元分析监测的准确性

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科学领域:

  • 认知心理学
  • 教育心理学
  • 超级认知

背景情况:

  • 有效的学习需要获得知识和精确的自我监测.
  • 学习能力与监测学习的准确性 (元认知准确性) 之间的关系尚未完全理解.

研究的目的:

  • 研究个体学习能力与监测学习进度的准确性之间的关系.
  • 挑战优秀学习者在监控学习方面本质上的优势.

主要方法:

  • 对现有数据进行了元分析 (N = 2,406).
  • 重新分析元分析数据以检查专家学习者的缺乏信心.
  • 进行了两项受控实验 (N=102和N=481),以概念上复制发现.

主要成果:

  • 发现了一个反直觉的负相关性:具有较高学习能力的个体的监测准确度略低.
  • 专家学习者表现出缺乏自信,
  • 实验研究证实了元分析的结果,表明专家学习者存在监测缺陷.

结论:

  • 现在人们普遍认为,好的学习者也是好的监督者.
  • 专家学习者可能存在监测缺陷,特别是对记忆预测的信心不足.
  • 这表明学习能力与元认知监测准确性之间存在潜在的分离.