使用卡尔曼波器将可靠性扩展到密集的纵向数据.
1Department of Human Development and Family Studies, Pennsylvania State University, University Park, Pennsylvania, USA.
The British journal of mathematical and statistical psychology
|February 18, 2026
概括
这项研究为分析重复观察的单个对象设计引入了一个新的可靠性系数,kappa (κ). 这提高了人体内变异的测量可靠性,这对于时间依赖的数据分析至关重要.
科学领域:
- 心理测量 心理测量 心理测量
- 统计 统计 统计 统计
- 行为科学 行为科学
背景情况:
- 可靠性是基于组的测量的基石,单个时间点分析.
- 测量的这一关键方面在反复观察的分析中经常被忽视.
- 传统上,可靠性被概念化为一种人与人之间的属性.
研究的目的:
- 重新开发可靠性概念,用于个人内,单个主体设计.
- 提出一种新的系数,kappa (κ),用于评估单个主体时间序列数据的可靠性.
- 将可靠性评估的应用扩展到时间依赖的个人内部变化.
主要方法:
- 开发一个新的可靠性系数,kappa (κ),用于单主体设计.
- 使用隐性变量时间序列模型,特别是状态空间模型.
- 扩展到容纳连续或离散个体变化的多主体状态空间模型.
- 推导和分析证明卡帕 (κ) 和其与现有可靠性系数的关系.
主要成果:
- 引入kappa (κ),一个新系数,用于单个主体设计的内部人可靠性.
- 证明kappa (κ) 将可靠性的一般定义 (真得分差异与总差异比率) 应用于时间依赖的个人内变化.
- 在时间序列数据的状态空间建模中建立系数的基础.
结论:
- 拟议的kappa (κ) 系数为个人内,时间依赖的数据提供了可靠的可靠性衡量标准.
- 这项工作将心理测量原理扩展到单个科目研究,解决了重复测量可靠性评估的差距.
- 这些发现为研究人员提供了一种新的工具,可以分析人体内的复杂过程.
相关概念视频
Kaplan-Meier Approach
644
The Kaplan-Meier estimator is a non-parametric method used to estimate the survival function from time-to-event data. In medical research, it is frequently employed to measure the proportion of patients surviving for a certain period after treatment. This estimator is fundamental in analyzing time-to-event data, making it indispensable in clinical trials, epidemiological studies, and reliability engineering. By estimating survival probabilities, researchers can evaluate treatment effectiveness,...
644
Calibration Curves: Linear Least Squares
4.6K
A calibration curve is a plot of the instrument's response against a series of known concentrations of a substance. This curve is used to set the instrument response levels, using the substance and its concentrations as standards. Alternatively, or additionally, an equation is fitted to the calibration curve plot and subsequently used to calculate the unknown concentrations of other samples reliably.
For data that follow a straight line, the standard method for fitting is the linear...
For data that follow a straight line, the standard method for fitting is the linear...
4.6K
Longitudinal Research
13.5K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
13.5K
Longitudinal Studies
554
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
554
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation
1.2K
This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
On...
1.2K
Censoring Survival Data
598
Survival analysis is a statistical method used to analyze time-to-event data, often employed in fields such as medicine, engineering, and social sciences. One of the key challenges in survival analysis is dealing with incomplete data, a phenomenon known as "censoring." Censoring occurs when the event of interest (such as death, relapse, or system failure) has not occurred for some individuals by the end of the study period or is otherwise unobservable, and it might have many different...
598


