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相关概念视频

Qualitative Analysis01:10

Qualitative Analysis

297
Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...
297
Language and Cognition01:27

Language and Cognition

374
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
374
Group Design02:01

Group Design

9.0K
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...
9.0K
Quantitative Analysis01:12

Quantitative Analysis

327
Quantitative analysis is a technique for measuring the amount of specific constituents in a sample. When the sample's composition is unknown, qualitative analysis is performed first to identify its components, which ensures that the correct substances are measured during the quantitative phase.
In quantitative analysis, two key measurements are made: the sample quantity and a property proportional to the amount of the analyte (the substance being analyzed). This forms the basis of the...
327
Development of Analytical Methods01:21

Development of Analytical Methods

462
An analytical methodology can be divided into four sequential steps: technique, method, procedure, and protocol. A technique is a scientific principle that rationalizes a specific phenomenon through chemical measurements. Adapting a technique for analyzing a sample of interest is termed a method. The procedure outlines the directions for performing the analysis via an analytical method. The protocol is the detailed guidelines on the procedure, which should be strictly followed to obtain the...
462
Language Development01:22

Language Development

395
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
395

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用多种语言分析定性数据的方法.

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    本研究介绍了一种分析多语言定性访谈数据的方法,其原始语言,保持参与者的意义和增强研究严谨性. 这种方法确保了各种健康研究的概念等价性和可靠性.

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    科学领域:

    • 定性研究方法 定性研究方法
    • 健康 公平 研究 健康 公平 研究
    • 多语言数据分析数据分析

    背景情况:

    • 质量面试数据的翻译可能会引入概念上的不等价性,扭曲参与者的经验并损害科学严谨性.
    • 在研究中跨越语言障碍需要仔细考虑翻译策略.

    研究的目的:

    • 描述一种分析多语言定性访谈数据的系统方法.
    • 在整个分析过程中保持成绩单的原始语言.

    主要方法:

    • 进行了关于翻译策略和多语言定性研究的文献综述.
    • 开发了一种方法,整合了定性内容分析和可信度标准.
    • 将该方法应用于使用英语和西班牙语访谈数据进行定性描述性研究.

    主要成果:

    • 字面转录是在原始语言 (英语和西班牙语) 中进行的.
    • 编码是由特定语言的研究小组用英语进行的,促进了统一的数据集视图.
    • 主要主题通过共识确定,参与者的引文保留在原始语言出版.

    结论:

    • 分析原始语言的副本揭示了微妙的文化主题.
    • 这种方法提高了健康公平研究的概念等价性和可信度.
    • 这种方法对于推进对健康的文化,语言和社会决定因素的研究至关重要.