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

Mechanistic Models: Compartment Models in Individual and Population Analysis01:23

Mechanistic Models: Compartment Models in Individual and Population Analysis

89
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
89
Reliability and Validity01:29

Reliability and Validity

13.2K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.2K
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

103
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
103
Mechanistic Models: Overview of Compartment Models01:21

Mechanistic Models: Overview of Compartment Models

172
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
172
Uncertainty in Measurement: Accuracy and Precision03:37

Uncertainty in Measurement: Accuracy and Precision

82.6K
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. 
82.6K
Accuracy and Errors in Hypothesis Testing01:13

Accuracy and Errors in Hypothesis Testing

322
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%...
322

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

Tracing the Right Path: Determination of Large Pedigree Segmentation and Relatedness.

Behavior genetics·2026
Same author

Game, Set, and Match: A Scoping Review of Matching Characteristics for Control and Intervention Groups in Adaptive Behavioral Interventions for Physical Activity or Healthy Eating Designs for Populations with Overweight and Obesity.

Behavioral medicine (Washington, D.C.)·2026
Same author

The typical and atypical development of dynamic self-regulation and coregulation of respiratory sinus arrhythmia in mothers and children across early childhood.

Child development·2026
Same author

Penalized Subgrouping of Heterogeneous Time Series.

Multivariate behavioral research·2026
Same author

Extending reliability to intensive longitudinal data with the Kalman filter.

The British journal of mathematical and statistical psychology·2026
Same author

Simultaneous detection of gradual and abrupt structural changes in Bayesian longitudinal modelling using entropy and model fit measures.

The British journal of mathematical and statistical psychology·2026
Same journal

Maximum Likelihood and Bayesian Estimation in Cross-Domain Latent Growth Curve Modeling: The Impact of Reliability, Sample Size, and Missing Data.

Structural equation modeling : a multidisciplinary journal·2026
Same journal

Dynamic Modeling with Intensive Longitudinal Data: One-Step and Two-Step DSEM Approaches.

Structural equation modeling : a multidisciplinary journal·2026
Same journal

Accommodating Continuous Time Metrics within the Discrete-time Latent Change Score Model Using Definition Variables.

Structural equation modeling : a multidisciplinary journal·2025
Same journal

Does Cluster-Robust Estimation Provide Within-Study Effects? A Comparison of Individual Participant Data Methods in MASEM.

Structural equation modeling : a multidisciplinary journal·2025
Same journal

Two-Step Multilevel Latent Class Analysis in the Presence of Measurement Non-Equivalence.

Structural equation modeling : a multidisciplinary journal·2025
Same journal

Unsupervised Model Construction in Continuous-Time.

Structural equation modeling : a multidisciplinary journal·2025
查看所有相关文章

相关实验视频

Updated: Sep 18, 2025

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach
04:35

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach

Published on: July 3, 2020

3.4K

动态结构方程模型中的测量模型错误规范:功率,可靠性和其他考虑因素.

Hyungeun Oh1, Michael D Hunter1, Sy-Miin Chow1

  • 1Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA 16802.

Structural equation modeling : a multidisciplinary journal
|June 25, 2025
PubMed
概括
此摘要是机器生成的。

动态结构方程模型 (DSEM) 中的测量误差会导致显著的参数偏差,即使可靠性很高. 仔细的模型规范对于准确分析密集的纵向数据 (ILD) 是至关重要的.

关键词:
动态结构方程模型 动态结构方程模型密集的纵向数据 密集的纵向数据测量时出现的测量错误在人内部的动态过程过程.

更多相关视频

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
09:00

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

Published on: August 16, 2024

921
Characterization of Complex Systems Using the Design of Experiments Approach: Transient Protein Expression in Tobacco as a Case Study
20:24

Characterization of Complex Systems Using the Design of Experiments Approach: Transient Protein Expression in Tobacco as a Case Study

Published on: January 31, 2014

16.6K

相关实验视频

Last Updated: Sep 18, 2025

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach
04:35

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach

Published on: July 3, 2020

3.4K
Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
09:00

Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education

Published on: August 16, 2024

921
Characterization of Complex Systems Using the Design of Experiments Approach: Transient Protein Expression in Tobacco as a Case Study
20:24

Characterization of Complex Systems Using the Design of Experiments Approach: Transient Protein Expression in Tobacco as a Case Study

Published on: January 31, 2014

16.6K

科学领域:

  • 心理测量 心理测量 心理测量
  • 量化心理学 量化心理学
  • 统计建模 统计建模

背景情况:

  • 动态结构方程模型 (DSEM) 是强大的强度纵向数据 (ILD).
  • 在DSEM中测量结构错误规格的影响尚未得到充分理解.
  • 可靠性和模型复杂性可能会影响DSEM结果.

研究的目的:

  • 调查DSEM中测量错误和错误规格的影响.
  • 评估可靠性条件和模型复杂性如何影响参数估计.
  • 为DSEM设计和分析提供实际建议.

主要方法:

  • 进行蒙特卡罗模拟,以评估在错误规格下DSEM的性能.
  • 不同的可靠性条件,参与者数量和时间点.
  • 单指标和多指标DSEM测量结构的比较.

主要成果:

  • 忽略测量错误导致了严重的动态参数偏差,无论可靠性如何.
  • 增加了样本大小和时间点,减少了但没有消除偏差.
  • 具有复合分数的单指标DSEM的性能类似于多指标DSEM.

结论:

  • 测量错误规范是DSEM中的一个关键问题,导致动态参数偏差.
  • 设计选择,包括指标的数量,显著影响DSEM的结果.
  • 提供了建议和工具,以提高DSEM可靠性和功率分析.