What Type of Data Is Questionnaire Data?


Larry Thompson

What Type of Data Is Questionnaire Data?

Questionnaire data is a specific type of data that is collected through the use of surveys or questionnaires. It provides valuable insights into people’s opinions, attitudes, behaviors, and preferences. Understanding the nature of questionnaire data is essential for researchers and analysts who want to extract meaningful information from it.

The Characteristics of Questionnaire Data

Questionnaire data possesses several important characteristics that distinguish it from other types of data:

  • Variety: Questionnaires can be designed to collect a wide range of data, including demographic information, Likert scale responses, multiple-choice answers, open-ended comments, and more.
  • Subjectivity: Since questionnaire data captures individuals’ opinions and perceptions, it tends to be subjective rather than objective. This subjectivity can provide valuable insights into human behavior and preferences.
  • Discrete Values: Most questionnaire data is discrete or categorical in nature.

    Responses are typically assigned numerical codes or labels that represent different categories or options.

  • Sampling Bias: Questionnaire data may suffer from sampling bias if the sample population does not accurately represent the Target population. Researchers must consider this potential bias when drawing conclusions from the collected data.

Analyzing Questionnaire Data

Analyzing questionnaire data involves several steps to derive meaningful insights:

Data Cleaning and Preparation

Prior to analysis, it is important to clean and prepare the questionnaire data. This involves checking for missing values, removing any duplicate entries, and ensuring consistent formatting across all responses.

Data Coding

Data coding involves assigning numerical codes or labels to the different response options. This step makes it easier to analyze and interpret the data, especially when dealing with multiple-choice questions or Likert scales.

Data Exploration

Data exploration involves examining the distribution of responses, identifying patterns, and exploring relationships between different variables. This step helps gain a deeper understanding of the data and can guide further analysis.

Data Analysis Techniques

There are various statistical techniques and methods that can be applied to analyze questionnaire data. Some common techniques include:

  • Descriptive statistics: These provide summary measures such as mean, median, mode, and standard deviation to describe the central tendency and variability of the data.
  • Inferential statistics: These techniques help draw conclusions about a population based on a sample. They include hypothesis testing, confidence intervals, and regression analysis.
  • Correlation analysis: This technique examines the strength and direction of relationships between variables.
  • Factor analysis: Factor analysis is used to identify underlying factors or dimensions within a set of questionnaire items.


Questionnaire data is a valuable source of information that provides insights into people’s opinions, attitudes, behaviors, and preferences. By understanding its characteristics and applying appropriate analytical techniques, researchers can extract meaningful insights from questionnaire data to inform decision-making processes.

Note: This article provides an overview of questionnaire data but does not cover all aspects related to its collection and analysis. Further research and study are recommended for a comprehensive understanding of this topic.

Discord Server - Web Server - Private Server - DNS Server - Object-Oriented Programming - Scripting - Data Types - Data Structures

Privacy Policy