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定量资料（Quantitative data）

什么是定量资料

　　定量资料是以数字形式表现出来的研究资料。定量资料有两个来源——实地源和文献源。实地源包括访谈、个案研究、开放式问卷、非结构观察；文献源包括与研究主题相关的著作、论文等。定量资料的实地源包括封闭式问卷、结构性观察；文献源包括年鉴、实验报告、调查报告等

Quantitative data is research data expressed in digital form.

There are two sources of quantitative data-field sources and literature sources.

Field sources include interviews, case studies, open-ended questionnaires, and unstructured observations; literature sources include works and papers related to research topics.

Field sources of quantitative data include closed questionnaires and structural observations; literature sources include yearbooks, experimental reports, survey reports, etc.

有序数据，数据具有一定的等级顺序，例如学生成绩：优、良、中、差，疾病的治疗情况：治愈，显效，好转，无效，或很好，好，一般，差。

Ordered data, the data has a certain level of order, such as student performance: excellent, good, medium, poor, disease treatment: cured, markedly effective, improved, ineffective, or very good, good, fair, poor.

定性资料（Qualitative Data)

什么是定性资料

　　定性资料是以文字、图形、录音、录象等非数字形式表现出来的研究资料。定性资料有两个来源——实地源和文献源。定性资料的实地源包括访谈、个案研究、开放式问卷、非结构观察；文献源包括与研究主题相关的著作、论文等。

Qualitative materials are research materials expressed in non-digital forms such as text, graphics, sound recordings, and video recordings.

There are two sources of qualitative data-field sources and literature sources.

Field sources of qualitative data include interviews, case studies, open questionnaires, and unstructured observations; literature sources include works and papers related to research topics.

离散变量(di 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 o adjacent values ??can be divided infinitely to take an infinite number of values. For example, the size of the production part, the height of the body,

Body weight, bust circumference, etc. are continuous variables, and their values ??can only be obtained by measurement or measurement methods.

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