定性数据和定量数据有什么区别？

统计数据 是一门处理收集、分析和表示收集的数据的主题。从统计方法得出的分析数据用于地质、心理学、预测等领域。数据表的准备过程包括数据收集、分析和汇总等步骤。

统计类型

下面给出的文章是对统计子主题的研究，其中包括对统计类型的解释以及对定量和定性数据的详细研究。统计基本上分为描述性统计和推论性统计两种类型。

• 描述性统计：描述性统计是在对数据集进行研究后，以数值、图形或表格结构的形式对数据进行汇总的一种方法。它提供了关于人口的描述性研究。其测量工具是，

1. 集中趋势的测量（平均值/中位数/众数）
2. 可变性的度量（标准导数，范围）

• 推论统计：推论统计是一种在预测的基础上运行并根据结果为总体得出结论的方法。它是由假设和预测运行的方法。这种类型的统计数据是由从人口样本数据中得出的概率进行的。其测量工具是

1. 测试假设
2. 方差分析等

定性数据和定量数据有什么区别？

回答：

Lets discuss and understand both the terms in detail,

• Quantitative data: The data collected on the grounds of the numerical variables are quantitative data. Quantitative data are more objective and conclusive in nature. It measures the values and is expressed in numbers. The data collection is based on “how much” is the quantity. The data in quantitative analysis is expressed in numbers so it can be counted or measured. The data is extracted from experiments, surveys, market reports, matrices, etc.
• Qualitative data: The data collected on grounds of categorical variables are qualitative data. Qualitative data are more descriptive and conceptual in nature. It measures the data on basis of the type of data, collection, or category. The data collection is based on what type of quality is given. Qualitative data is categorized into different groups based on characteristics. The data obtained from these kinds of analysis or research is used in theorization, perceptions, and developing hypothetical theories. These data are collected from texts, documents, transcripts, audio and video recordings, etc.

Comparative table of qualitative and quantitative data,

Qualitative Data	Quantitative Data
1. Qualitative data uses methods like interviews, participant observation, focus on a grouping to gain collective information.	1. Quantitative data uses methods as questionnaires, surveys, and structural observations to gain collective information.
2. Data format used in it is textual. Datasheets are contained of audio or video recordings and notes.	2. Data format used in it is numerical. Datasheets are obtained in the form of numerical values.
3. Qualitative data talks about the experience or quality and explains the questions like ‘why’ and ‘how’.	3. Quantitative data talks about the quantity and explains the questions like ‘how much’, ‘how many .
4. The data is analyzed by grouping it into different categories.	4. The data is analyzed by statistical methods.
5.Qualitative data are subjective and can be further open for interpretation.	5. Quantitative data are fixed and universal.

示例问题

问题1：提到定性和定量数据之间的区别？

回答：

Qualitative data are descriptive and conceptual whereas, quantitative data is expressed in numbers that can be measured or counted.

问题 2：提及任何类型的定性数据分析？

回答：

The three types of qualitative analysis are:

• Case study
• Ground theory
• Narrative

问题 3：提及任何类型的定量数据分析？

回答：

The three types of quantitative analysis are:

• Survey research
• Experimental
• Comparative

问题4：量化数据以何种形式表示？

回答：

As the quantitative data are countable and can be measured they are represented in the form of numerical values.

问题5：定量数据有哪些类型？

回答：

 The types of quantitative data are

• Discrete quantitative data: It is the form of data that is fixed and cannot be broken down further.
• Continuous quantitative data: It is the form of data that can be continued and also broken down into smaller units.

问题 6：有哪些真实世界的定量数据示例？

回答：

Some of the examples of quantitative data are

1. The measurement of height, length, or weight.
2. Counting the numbers of sales.
3. Rating something on a numerical scale.