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

Randomized Experiments01:13

Randomized Experiments

8.8K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
8.8K
Random and Systematic Errors01:20

Random and Systematic Errors

14.3K
Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
14.3K
Censoring Survival Data01:09

Censoring Survival Data

511
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...
511
Blinding01:11

Blinding

3.8K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
3.8K
Regression Toward the Mean01:52

Regression Toward the Mean

6.8K
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...
6.8K
Systematic Error: Methodological and Sampling Errors01:15

Systematic Error: Methodological and Sampling Errors

8.6K
In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
Sampling errors originate from improper sampling methods or the wrong sample population. These errors can be minimized by refining the sampling strategy. Defective instruments or faulty calibrations are the sources of instrumental...
8.6K

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

Development and usability testing of a mindfulness-based smoking cessation app for adults with low income: "It's helped me to not react and grab a cigarette".

Journal of health psychology·2026
Same author

Understanding capability, opportunity, and motivation for at-home COVID-19 testing in underserved populations during the pandemic.

Translational behavioral medicine·2026
Same author

Antecedents and consequences of different indicators of engagement with a digital intervention for tobacco cessation.

NPJ digital medicine·2026
Same author

Mixed-Method Formative Evaluation and Cultural Adaptation of Digital Health Communication Content and Delivery Promoting Lung Cancer Screening Shared Decision-Making.

Cancer control : journal of the Moffitt Cancer Center·2026
Same author

Examining daily affect variability by individual differences among a diverse community sample.

Emotion (Washington, D.C.)·2026
Same author

Effects of Ecological Momentary Assessment Prompting Schedule on Affect Measurement Variability and Associations With Next-Day Health Behaviors.

Assessment·2026
Same journal

Planned missingness in intensive longitudinal studies: Extensions and comparisons of multiform designs.

Behavior research methods·2026
Same journal

A validity-guided workflow for robust large language model research in psychology.

Behavior research methods·2026
Same journal

Are 7-point Likert scales preferable to 5-point scales in language research?

Behavior research methods·2026
Same journal

Generative psychometrics via AI-GENIE: Automatic item generation and validation with network-integrated evaluation.

Behavior research methods·2026
Same journal

Exploring psychological tradeoffs: Developing and demonstrating an R Shiny app for Pareto optimization.

Behavior research methods·2026
Same journal

The performance of Bayesian fit measures in detecting misspecified multilevel structural equation modeling.

Behavior research methods·2026
查看所有相关文章

相关实验视频

Updated: Jan 11, 2026

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
06:55

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index

Published on: January 8, 2020

15.0K

微随机试验中缺少的数据:挑战和机遇

Shiyu Zhang1, John J Dziak2, Lizbeth Benson2

  • 1Institute for Social Research, University of Michigan, 426 Thompson St, Ann Arbor, Michigan, 48104, USA. zsy@umich.edu.

Behavior research methods
|November 14, 2025
PubMed
概括
此摘要是机器生成的。

微随机试验 (MRT) 中缺少的数据挑战了即时适应性干预 (JITAI) 的发展. 这项研究提供了一个框架来管理缺失的数据,改善JITAI设计和实施数字健康干预措施.

关键词:
恰到好处的适应性干预措施微型随机化试验的研究.缺少的数据数据.

更多相关视频

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing
07:21

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing

Published on: August 25, 2018

13.3K
Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research
08:33

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research

Published on: January 5, 2024

1.6K

相关实验视频

Last Updated: Jan 11, 2026

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
06:55

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index

Published on: January 8, 2020

15.0K
Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing
07:21

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing

Published on: August 25, 2018

13.3K
Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research
08:33

Author Spotlight: Methodologies and Advancements of Chronic Pain Management Research

Published on: January 5, 2024

1.6K

科学领域:

  • 数字健康数字健康
  • 行为科学 行为科学
  • 临床试验 临床试验

背景情况:

  • 实时适应性干预 (JITAI) 利用数字技术实时提供心理支持.
  • 微随机试验 (MRT) 对于优化JITAI设计和促进行为改变至关重要.
  • 缺少的数据对JITAI开发MRT的有效性和实用性构成重大挑战.

研究的目的:

  • 为了确定MRT研究中缺少数据的来源.
  • 分析缺失数据对偏差,差异和JITAI实施的影响.
  • 提出减少和处理MRT中缺少数据的策略.

主要方法:

  • 概念框架的发展.
  • 分析缺失的数据源及其影响.
  • 使用移动辅助调控吸烟 (MARS) 研究数据的插图.

主要成果:

  • 缺失的数据可能来自MRT的各种来源.
  • 缺失的数据可以引入偏见,并增加试验结果的差异.
  • 需要有效的策略来缓解和管理缺失的数据.

结论:

  • 解决缺失的数据对于强大的JITAI研究至关重要.
  • 管理缺失数据的积极框架将指导未来的MRT调查.
  • 这项工作旨在加强数字心理干预措施的开发和实施.