Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Poisson's Ratio01:23

Poisson's Ratio

1.1K
Poisson's ratio is a material property that indicates their stress response. It explains the connection between the elongation or compression a material undergoes in the direction of an applied force and the contraction or expansion it experiences perpendicular to that force. When a slender bar is loaded axially, it stretches in the direction of the force and contracts laterally. Poisson's ratio is the negative ratio of this lateral contraction to the axial elongation. The negative sign...
1.1K
Assessment of the Gastrointestinal System I: Subjective Data01:17

Assessment of the Gastrointestinal System I: Subjective Data

669
Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems...
669
Assessment of the Cardiovascular System I: Subjective Data01:23

Assessment of the Cardiovascular System I: Subjective Data

854
A thorough health history and physical assessment are essential for identifying cardiovascular disease (CVD) symptoms and distinguishing them from other health issues.
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
854
Fixed Action Patterns01:06

Fixed Action Patterns

17.7K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.7K
Poisson Probability Distribution01:09

Poisson Probability Distribution

12.1K
A Poisson probability distribution is a discrete probability distribution. It gives the probability of a number of events occurring in a fixed interval of time or space if these events happen at a known average rate and independently of the time since the last event. For example, a book editor might be interested in the number of words spelled incorrectly in a particular book. It might be that, on average, there are five words spelled incorrectly in 100 pages. The interval is 100 pages.
The...
12.1K
Poisson's And Laplace's Equation01:25

Poisson's And Laplace's Equation

4.3K
The electric potential of the system can be calculated by relating it to the electric charge densities that give rise to the electric potential. The differential form of Gauss's law expresses the electric field's divergence in terms of the electric charge density.
4.3K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A Latent Markov Model for Noninvariant Measurements: An Application to Interaction Log Data From Computer-Interactive Assessments.

Psychometrika·2025
Same author

Location-Matching Adaptive Testing for Polytomous Technology-Enhanced Items.

Applied psychological measurement·2024
Same author

Virtual reality and noise canceling headphone distraction during pediatric dermatologic procedures.

Pediatric dermatology·2023
Same author

Flow with an intelligent tutor: A latent variable modeling approach to tracking flow during artificial tutoring.

Behavior research methods·2023
Same author

Polytomous Testlet Response Models for Technology-Enhanced Innovative Items: Implications on Model Fit and Trait Inference.

Educational and psychological measurement·2022
Same author

Sequential Generalized Likelihood Ratio Tests for Online Item Monitoring.

Psychometrika·2022

相关实验视频

Updated: Feb 5, 2026

Counting and Determining the Viability of Cultured Cells
05:47

Counting and Determining the Viability of Cultured Cells

Published on: June 23, 2008

23.4K

隐藏的波桑计数模型用于从技术增强评估中获得的行动计数数据.

Gregory Arbet1, Hyeon-Ah Kang1

  • 1University of Texas at Austin, Austin, Texas, USA.

The British journal of mathematical and statistical psychology
|February 4, 2026
PubMed
概括

本研究引入了一种灵活的统计模型,用于分析来自各种项目类型的计算机评估的行动计数. 精细的模型准确地捕捉了项目类型的影响,改进了用于创新的评估格式的数据分析.

科学领域:

  • 心理测量和教育测量方法
  • 统计建模 统计建模
  • 计算统计学 计算统计学

背景情况:

  • 计算机化评估越来越多地使用创新的项目格式,如拖放和基于场景的问题.
  • 现有的统计模型可能无法充分捕捉这些不同的项目类型对用户行动数量的系统影响.
  • 需要灵活的建模方法来考虑项目特征及其对响应数据的影响.

研究的目的:

  • 呈现统计模型的精细化方案,在计算机化评估中明确考虑项目特征和项目类型影响.
  • 将该方案整合到现有的计数模型中,特别是拉什和康威-马克斯韦-波森模型.
  • 验证建议的推断程序的准确性和实际相关性.

主要方法:

  • 开发了一个改进方案,使用多方面的参数化来表征共同和独特的项目特征.
  • 在Rasch和Conway-Maxwell-Poisson计数模型中实施该方案.
  • 利用Stan进行模型推断,并使用模拟数据进行数值实验以验证.

主要成果:

  • 拟议的推断方案在模拟中证明了基础模型参数的充分恢复.
  • 经验应用证实了当数据中存在明显的项目类型效应时,改进的实际相关性.
  • 该研究验证了改进模型的估计准确性.
关键词:
行动计数数据 行动计数数据潜伏的波桑计数模型通过技术增强的评估.

更多相关视频

Counting Human Neural Stem Cells
06:37

Counting Human Neural Stem Cells

Published on: August 22, 2007

16.5K
Author Spotlight: Efficient Retinal Ganglion Cell Counting in Mouse Models of Glaucoma for Treatment Evaluation
05:52

Author Spotlight: Efficient Retinal Ganglion Cell Counting in Mouse Models of Glaucoma for Treatment Evaluation

Published on: October 4, 2024

1.9K

相关实验视频

Last Updated: Feb 5, 2026

Counting and Determining the Viability of Cultured Cells
05:47

Counting and Determining the Viability of Cultured Cells

Published on: June 23, 2008

23.4K
Counting Human Neural Stem Cells
06:37

Counting Human Neural Stem Cells

Published on: August 22, 2007

16.5K
Author Spotlight: Efficient Retinal Ganglion Cell Counting in Mouse Models of Glaucoma for Treatment Evaluation
05:52

Author Spotlight: Efficient Retinal Ganglion Cell Counting in Mouse Models of Glaucoma for Treatment Evaluation

Published on: October 4, 2024

1.9K

结论:

  • 拟议的模型改进有效地捕捉了在计算机化评估数据中的项目类型影响.
  • 这种方法为分析来自创新的项目格式的计数数据提供了实用解决方案.
  • 结果提供了关于应用Poisson模型用于心理测量中计数数据分析的见解.