What Type of Data Is Used in Questionnaire?


Angela Bailey

When designing a questionnaire, it is important to consider the type of data that will be collected. The data collected in a questionnaire can vary depending on the purpose of the survey and the specific questions being asked. In this article, we will explore the different types of data that can be used in a questionnaire and how they can provide valuable insights.

Quantitative Data

Quantitative data is numerical data that can be measured or counted. This type of data is often used in questionnaires to gather information about quantities, frequencies, or ratings. It provides measurable and objective insights.

Types of Quantitative Data

There are two main types of quantitative data:

  • Discrete Data: Discrete data consists of whole numbers or counts that cannot be subdivided further. For example, the number of siblings someone has or the number of times they have visited a particular place.
  • Continuous Data: Continuous data includes measurements that can be subdivided infinitely. For example, someone’s height or weight.

Qualitative Data

Qualitative data is descriptive and non-numerical information. It provides insights into opinions, feelings, and subjective experiences. This type of data is often collected through open-ended questions where respondents have the freedom to express their thoughts.

Types of Qualitative Data

There are several types of qualitative data:

  • Categorical Data: Categorical data consists of categories or labels that represent different groups or characteristics. For example, gender (male/female), marital status (single/married/divorced), etc.
  • Narrative Data: Narrative data includes detailed stories or personal accounts that provide rich insights into individuals’ experiences or perspectives.
  • Opinion Data: Opinion data captures subjective views and beliefs of respondents. This type of data is often collected through Likert scale questions or open-ended questions that ask for opinions.

Mixed Methods

In some cases, questionnaires may include both quantitative and qualitative data. This approach allows researchers to gather a more comprehensive understanding by combining numerical measurements with subjective experiences and opinions.


When designing a questionnaire, it is important to consider the type of data that will be collected. Understanding the different types of data, such as quantitative and qualitative, can help in formulating effective questions and gathering insightful information. By incorporating a mix of data types, researchers can gain a more holistic understanding of the topic being studied.

In summary, questionnaires can collect various types of data including quantitative, qualitative, or a combination of both. The choice of data type depends on the research objectives and the insights sought from the survey. By utilizing different elements like bold text, underlined text, lists, and subheaders in your questionnaire design, you can create visually engaging surveys that effectively collect valuable data.

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