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相关概念视频

Surveys02:16

Surveys

16.6K
Often, psychologists develop surveys as a means of gathering data. Surveys are lists of questions to be answered by research participants, and can be delivered as paper-and-pencil questionnaires, administered electronically, or conducted verbally. Generally, the survey itself can be completed in a short time, and the ease of administering a survey makes it easy to collect data from a large number of people.
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Survey Safety01:28

Survey Safety

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Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
364
Convenience Sampling Method00:55

Convenience Sampling Method

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Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population.
Convenience sampling is a non-random method of sample selection; this method selects individuals that are easily accessible and may result in biased data. For example, a marketing...
10.9K
Systematic Error: Methodological and Sampling Errors01:15

Systematic Error: Methodological and Sampling Errors

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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...
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Group Design02:01

Group Design

10.1K
The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between...
10.1K
Sample Proportion and Population Proportion01:20

Sample Proportion and Population Proportion

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Collecting samples or responses from an entire population takes significant time and effort, so a researcher collects responses from only a sample of that population. Suppose a study needs to collect information about a specific mobile application. After sample collection, the researcher analyzes the data and discovers that most individuals in the sample use that specific mobile application. The sample proportion measures the number of individuals in a sample who either use or don't use the...
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相关实验视频

Updated: Jan 11, 2026

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting
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对知情同意的例外 社区咨询调查-受访者特征是否准确地反映了目标社区?

Alexander Keister1, Shannon W Stephens2, Kathleen Adelgais3

  • 1The Ohio State University, Columbus, Ohio, USA.

Academic emergency medicine : official journal of the Society for Academic Emergency Medicine
|November 10, 2025
PubMed
概括

除了知情同意试验之外,用于社区咨询的数字调查可能并不完全代表社区人口统计数据. 研究人员必须解决潜在的偏见,以确保包容性参与紧急护理研究.

关键词:
社区咨询 社区咨询人口统计数据 人口统计数据数字营销调查数字营销调查从知情同意 (EFIC) 的例外.

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科学领域:

  • 紧急医疗研究的研究.
  • 参与公共卫生活动.
  • 临床试验方法论 临床试验方法论

背景情况:

  • 对于试验寻求豁免知情同意 (EFIC) 的情况,社区咨询 (CC) 是必要的.
  • 数字营销平台提供了一种有效的方法,通过调查收集社区的意见.
  • 这项研究评估了数字CC调查受访者的人口代表性.

研究的目的:

  • 评估数字调查受访者是否符合他们代表的社区的人口统计数据,以免征求知情同意 (EFIC) 社区咨询 (CC).
  • 确定参与研究的数字参与的潜在人口差异.
  • 在EFIC CC.中提供利用数字平台的最佳实践信息.

主要方法:

  • 为Pedi-PART研究部署了一个数字调查,重点关注重症儿童的护理人员呼吸道管理.
  • 该调查针对10个紧急医疗服务 (EMS) 机构服务区域的18-65岁的成年人.
  • 对象人口统计 (年龄,性别,种族,种族,收入,教育) 与2022年美国社区调查数据进行了比较.

主要成果:

  • 完成了6630项调查,响应率因社区而异.
  • 与一般社区相比,调查受访者更有可能是女性,家庭收入较低.
  • 受访者不太可能属于少数种族群体,认同西班牙裔,或有高中教育.
  • 在10个研究社区中观察到显著的人口差异.

结论:

  • 数字调查平台可能会产生与一般人口不同的人口特征的受访者.
  • 研究人员在使用EFIC CC.的数字工具时必须承认并减轻潜在的人口偏见.
  • 需要仔细考虑平台覆盖范围和参与者招聘策略,以实现公平的社区参与.