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

One-Way ANOVA: Equal Sample Sizes01:15

One-Way ANOVA: Equal Sample Sizes

4.0K
One-Way ANOVA can be performed on three or more samples with equal or unequal sample sizes. When one-way ANOVA is performed on two datasets with samples of equal sizes, it can be easily observed that the computed F statistic is highly sensitive to the sample mean.
Different sample means can result in different values for the variance estimate: variance between samples. This is because the variance between samples is calculated as the product of the sample size and the variance between the...
4.0K
z Scores and Area Under the Curve01:17

z Scores and Area Under the Curve

18.4K
z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of...
18.4K
One-Way ANOVA: Unequal Sample Sizes01:15

One-Way ANOVA: Unequal Sample Sizes

6.6K
One-way ANOVA can be performed on three or more samples of unequal sizes. However, calculations get complicated when sample sizes are not always the same. So, while performing ANOVA with unequal samples size, the following equation is used:
6.6K
Statistical Methods to Analyze Parametric Data: ANOVA01:12

Statistical Methods to Analyze Parametric Data: ANOVA

1.5K
Analysis of Variance, or ANOVA, is a powerful statistical technique used to analyze parametric data, primarily in research and experimental studies. It's designed to compare the means of two or more groups, assisting researchers in identifying any significant differences between these group means. There are two main types of ANOVA based on the complexity of the analysis: one-way and two-way.
One-way ANOVA is applied when a single independent variable or factor is scrutinized. It compares...
1.5K
One-Way ANOVA01:18

One-Way ANOVA

11.9K
One-way ANOVA analyzes more than three samples categorized by one factor. For example, it can compare the average mileage of sports bikes. Here, the data is categorized by one factor - the company. However, one-way ANOVA cannot be used to simultaneously compare the sample mean of three or more samples categorized by two factors. An example of two factors would be sports bikes from different companies driven in different terrains, such as a desert or snowy landscape. Here, two-way ANOVA is used...
11.9K
Statistical Analysis System (SAS)01:14

Statistical Analysis System (SAS)

849
SAS, short for Statistical Analysis System, is a powerful data analysis, management, and visualization tool. Developed by the SAS Institute in the early 1970s, SAS has evolved into a comprehensive software suite used across various industries for statistical analysis, business intelligence, and predictive modeling.
Applications: SAS finds applications in numerous fields, including healthcare for clinical trial analysis, finance for risk assessment, marketing for customer data analysis, and...
849

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

Strategies for collection, management, and release of data for multi-site longitudinal studies: Lessons from the ABCD Data Analysis, Informatics, & Resource Center.

Developmental cognitive neuroscience·2026
Same author

Association of C-reactive protein with brain micro- and macro-structure among older adult men.

Brain, behavior, and immunity·2026
Same author

Development and evaluation of a cervical cancer-specific restriction spectrum imaging (RSI) model.

Magnetic resonance imaging·2026
Same author

Nonlinear associations between body mass index and brain microstructure across adolescence in the ABCD Study.

bioRxiv : the preprint server for biology·2026
Same author

The genetic architecture of human cerebellar morphology supports a key role for the cerebellum in human evolution and psychopathology.

Communications biology·2026
Same author

Robot-Assisted Laparoscopic Neurolysis for Fibrotic Entrapment of the Lumbosacral Plexus in Post-Traumatic and Iatrogenic Chronic Pelvic Pain.

Journal of minimally invasive gynecology·2026

相关实验视频

Updated: Jan 17, 2026

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
06:01

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R

Published on: December 9, 2022

2.8K

ABCDscores:用于计算ABCD研究®中的总结分数的R包.

Le Zhang1,2, Olivier Celhay1,2, Biplabendu Das1,2

  • 1Center for Multimodal Imaging & Genetics, J. Craig Venter Institute, La Jolla, USA.

bioRxiv : the preprint server for biology
|September 18, 2025
PubMed
概括

ABCDscores是青少年大脑认知发展 (ABCD) 研究的新R包. 它为儿童健康和大脑发育数据提供透明,可重复的评分,提高了研究效率.

更多相关视频

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
09:16

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

Published on: March 14, 2018

10.7K
Detecting Behavioral Deficits in Rats After Traumatic Brain Injury
07:54

Detecting Behavioral Deficits in Rats After Traumatic Brain Injury

Published on: January 30, 2018

18.8K

相关实验视频

Last Updated: Jan 17, 2026

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
06:01

Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R

Published on: December 9, 2022

2.8K
Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
09:16

Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers

Published on: March 14, 2018

10.7K
Detecting Behavioral Deficits in Rats After Traumatic Brain Injury
07:54

Detecting Behavioral Deficits in Rats After Traumatic Brain Injury

Published on: January 30, 2018

18.8K

科学领域:

  • 神经科学是一个神经科学.
  • 发展心理学 发展心理学
  • 生物统计学 生物统计学

背景情况:

  • 青少年大脑认知发展 (ABCD) 研究收集了关于儿童健康和大脑发育的广泛多式联络数据.
  • 之前在ABCD数据集中计算总结分数的方法是严格的,不可靠的,缺乏透明度.
  • 现有的评分方法依赖于REDCap或外部脚本,阻碍了数据分析.

研究的目的:

  • 介绍ABCDscores,这是一个R软件包,用于计算ABCD研究中的总结分数.
  • 提供灵活的开源解决方案,以实现透明和可重复的数据评分.
  • 允许定制以满足各种研究要求.

主要方法:

  • 开发了一个R包,ABCDscores,以标准化得分计算.
  • 在各种评估类型中应用评分的实施方法.
  • 确保大规模数据集的一致性和准确性.

主要成果:

  • 对于ABCD数据资源,ABCDscores计算了大多数非专有总结分数.
  • 该包为复杂的评分程序提供了一个用户友好的流程.
  • 简化了研究工作流程,减少了错误,节省了研究人员的时间.

结论:

  • 通过透明和可重复的评分,ABCDscores增强了ABCD研究数据的分析.
  • 该套件可以作为在其他研究中开发类似工具的模型.
  • 促进儿童大脑发育研究中的创新和新发现.