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相关概念视频

Null and Alternative Hypotheses01:16

Null and Alternative Hypotheses

10.0K
The actual hypothesis testing begins by considering two hypotheses. They are termed  the null hypothesis and the alternative hypothesis. These hypotheses contain opposing viewpoints.
The null hypothesis, denoted by H0 is a statement of no difference between the variables—they are not related. This can often be considered the status quo. As  a result if you cannot accept the null, it requires some action.
The alternative hypothesis, denoted by H1 or Ha, is a claim about the...
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Types of Hypothesis Testing01:11

Types of Hypothesis Testing

26.8K
There are three types of hypothesis tests: right-tailed, left-tailed, and two-tailed.
When the null and alternative hypotheses are stated, it is observed that the null hypothesis is a neutral statement against which the alternative hypothesis is tested. The alternative hypothesis is a claim that instead has a certain direction. If the null hypothesis claims that p = 0.5, the alternative hypothesis would be an opposing statement to this and can be put either p > 0.5, p < 0.5, or p...
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What is a Hypothesis?01:14

What is a Hypothesis?

12.9K
A hypothesis can be a simple sentence or statement about a property or any phenomenon observed or predicted for a population. It is usually a claim about a  property of the population. It can be stated for any field observations or experiments. A hypothesis statement cannot be said to be right or wrong as it is merely a statement. It needs to be tested through an elaborate data collection process and an appropriate statistical test. A hypothesis should be a general but not a vague...
12.9K
Statistical Hypothesis Testing01:16

Statistical Hypothesis Testing

2.1K
Hypothesis testing is a critical statistical procedure facilitating informed, evidence-based decisions. It begins with a hypothesis, which is a tentative explanation, or a prediction about a population parameter. This hypothesis can be either a null hypothesis (H0), indicating no effect or difference, or an alternative hypothesis (Ha), suggesting an effect or difference.
Statistical significance measures the probability that an observed result occurred by chance. If this probability, known as...
2.1K
Hypothesis: Accept or Fail to Reject?01:17

Hypothesis: Accept or Fail to Reject?

28.3K
The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, an appropriate test statistic, an appropriate confidence level, the critical values, and P-values. However, when the evidence suggests that the null hypothesis cannot be rejected, is it right to say, 'Accept' the null hypothesis?
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
28.3K
Qualitative Analysis01:10

Qualitative Analysis

678
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:...
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Updated: Sep 9, 2025

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations
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Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations

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定性假设

Veli-Matti Karhulahti1

  • 1University of Jyväskylä, Jyväskylä, Central Finland, Finland.

Open research Europe
|September 2, 2025
PubMed
概括
此摘要是机器生成的。

定性假设 (QHs) 可以在没有测试的情况下揭示研究人员的期望. 对于预先注册和注册报告等新的报告格式来说,QH是有用的,它有助于分析前的反思.

关键词:
认识论超级科学方法的使用预先注册注册报告

更多相关视频

Enactive Phenomenological Approach to the Trier Social Stress Test: A Mixed Methods Point of View
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Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
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相关实验视频

Last Updated: Sep 9, 2025

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations
09:07

Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations

Published on: September 16, 2015

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Enactive Phenomenological Approach to the Trier Social Stress Test: A Mixed Methods Point of View
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Enactive Phenomenological Approach to the Trier Social Stress Test: A Mixed Methods Point of View

Published on: January 7, 2019

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Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods
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Analysis of Congenital Heart Defects in Mouse Embryos Using Qualitative and Quantitative Histological Methods

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科学领域:

  • 社会科学
  • 定性研究方法

背景情况:

  • 在定性研究中,假设是不常见的,因为方法的局限性和认识论的重点是探索而不是测试.
  • 定性研究人员通常持有类似于假设的研究预期.
  • 披露这些预期对于研究的透明度是有价值的.

研究的目的:

  • 介绍和讨论定性假设的概念.
  • 将QH作为一种工具,用于在定性研究中披露预期.
  • 在不断变化的报告标准中强调QH的实用性.

主要方法:

  • 概念上的讨论和论证.
  • 探索预期在定性调查中的作用.
  • 分析QH与新报告格式之间的匹配.

主要成果:

  • 定性假设 (QHs) 为研究人员在数据收集之前表达期望提供了一个框架.
  • 质量假设与传统假设不同,因为它们不是为了测试.
  • QH的概念与预先注册和注册报告等新兴实践相吻合.

结论:

  • 定性假设是提高定性研究透明度和反射性的重要机制.
  • 将QH纳入预注册和注册报告可以加强定性研究的分析前阶段.
  • 提出的QH概念解决了在定性方法中承认和管理研究人员期望的需要.