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

Response Surface Methodology01:16

Response Surface Methodology

92
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
92
Collisions in Multiple Dimensions: Problem Solving01:06

Collisions in Multiple Dimensions: Problem Solving

3.7K
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
3.7K
Friedman Two-way Analysis of Variance by Ranks01:21

Friedman Two-way Analysis of Variance by Ranks

148
Friedman's Two-Way Analysis of Variance by Ranks is a nonparametric test designed to identify differences across multiple test attempts when traditional assumptions of normality and equal variances do not apply. Unlike conventional ANOVA, which requires normally distributed data with equal variances, Friedman's test is ideal for ordinal or non-normally distributed data, making it particularly useful for analyzing dependent samples, such as matched subjects over time or repeated measures...
148
Multi-input and Multi-variable systems01:22

Multi-input and Multi-variable systems

98
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence...
98
Multiple Regression01:25

Multiple Regression

2.9K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
2.9K
Multicompartment Models: Overview01:14

Multicompartment Models: Overview

104
Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...
104

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

Synergetic Dual-Additive Electrolyte Enables Highly Stable Performance in Sodium Metal Batteries.

Small (Weinheim an der Bergstrasse, Germany)·2024
Same author

Influence of ZIF-9 and ZIF-12 structure on the formation of a series of new Co/N-doped porous carbon composites as anode electrodes for high-performance lithium-ion batteries.

RSC advances·2023
Same author

What are the mathematical bounds for coefficient α?

Psychological methods·2023
Same author

Local Minima in Multidimensional Item Response Theory Models.

Multivariate behavioral research·2023
Same author

The psychometric properties of the Vietnamese Version of the Five Facet Mindfulness Questionnaire.

BMC psychology·2022
Same author

The COVID-19 Pandemic and Adolescents' Psychological Distress: A Multinational Cross-Sectional Study.

International journal of environmental research and public health·2022
Same journal

A Simple Approach for Differential Test Functioning Based on Sum Scores.

Educational and psychological measurement·2026
Same journal

Evaluating Factor Retention in Large Factor Analysis Models: A Simulation Study Comparing 15 Methods.

Educational and psychological measurement·2026
Same journal

Agreement and Alignment in Binary Rating Tasks: Strategic Convergence as an Equilibrium Outcome.

Educational and psychological measurement·2026
Same journal

Interactions Between Termination Criteria and Ability Estimators in Computerized Adaptive Testing.

Educational and psychological measurement·2026
Same journal

Identification and Diagnosis of Misreporting in Surveys.

Educational and psychological measurement·2026
Same journal

The Aggregated Latent Profile Index: Measuring Person Profile Differentiation Within a Bootstrap-Validated Latent Profile Space.

Educational and psychological measurement·2026
查看所有相关文章

相关实验视频

Updated: Jun 8, 2025

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
08:12

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments

Published on: March 1, 2022

2.4K

在多维物件响应理论模型中旋转局部解决方案.

Hoang V Nguyen1, Niels G Waller1

  • 1University of Minnesota, Twin Cities, Minneapolis, USA.

Educational and psychological measurement
|November 1, 2024
PubMed
概括
此摘要是机器生成的。

在多维,双参数物流 (M2PL) 模型中,地质旋转通常会产生局部解决方案,但这些解决方案在测量精度上可能有所不同. 当出现多个解决方案时,适应指数可能会错误地识别最佳旋转.

关键词:
分因子旋转的因素旋转.地质地质地质地质地质当地解决方案 解决方案多维物品响应理论是多维物品反应理论.这是一个令人难以置信的,令人难以置信的.

更多相关视频

The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
05:15

The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

Published on: February 19, 2018

10.8K
Applying an eMASS Customization Program as a Research Tool to Evaluate Consumer Benefits
08:27

Applying an eMASS Customization Program as a Research Tool to Evaluate Consumer Benefits

Published on: September 27, 2019

6.9K

相关实验视频

Last Updated: Jun 8, 2025

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments
08:12

A Psychophysics Paradigm for the Collection and Analysis of Similarity Judgments

Published on: March 1, 2022

2.4K
The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
05:15

The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

Published on: February 19, 2018

10.8K
Applying an eMASS Customization Program as a Research Tool to Evaluate Consumer Benefits
08:27

Applying an eMASS Customization Program as a Research Tool to Evaluate Consumer Benefits

Published on: September 27, 2019

6.9K

科学领域:

  • 心理测量 心理测量 心理测量
  • 统计建模 统计建模
  • 教育测量教育的测量

背景情况:

  • 因素旋转对于解释复杂的多维物品响应模型至关重要.
  • 在因子旋转中可能会出现局部解决方案 (LS),这可能会影响模型解释.
  • 多维,双参数物流 (M2PL) 模型在教育和心理评估中被广泛使用.

研究的目的:

  • 在M2PL模型中研究oblimin和geomin旋转算法的局部解决方案 (LS) 的收率.
  • 检查各种因素 (斜率参数,每个因素的指标,交叉负载,因子相关性,模型错误,样本大小) 对LS率的影响.
  • 评估LS对潜在特征估计精度和结构适应指数可靠性的影响.

主要方法:

  • 广泛的蒙特卡洛模拟研究涉及超过19,200个数据集在96个模型条件.
  • 模拟M2PL模型与相关的主要和非相关的次要因素,以表示模型错误.
  • 对oblimin和geomin旋转算法的性能评估,包括超过760万次旋转.

主要成果:

  • 在特定条件下,oblimin和geomin算法都趋向于局部解决方案.
  • 在大多数模拟模型中,地质量旋转显示出更高的局部溶解率.
  • 同样的物品响应模式产生局部解决方案,导致不同的潜在特征估计和测量精度.
  • 定量结构适应指数经常错误地识别了当多个解决方案存在时最准确的旋转.

结论:

  • 旋转算法的选择 (geomin vs. oblimin) 影响了在M2PL模型中获得局部解决方案的可能性.
  • 局部解决方案可能导致潜在特征估计和测量精度的差异.
  • 当出现多个解决方案时,标准合适度指数可能无法可靠地确定最佳旋转,需要仔细解释.