Is a Likert Scale a Survey or Questionnaire?

A Likert scale, named after its creator Rensis Likert, is a psychometric scale commonly used in survey and questionnaire design. But is it a survey or a questionnaire itself? Let's delve into this to understand the role of a Likert scale in data collection.

Before we dive in, let's clarify the difference between a survey and a questionnaire. While both are tools for gathering information, a survey is a broader term that encompasses various methods of data collection, including questionnaires. A questionnaire, on the other hand, is a specific type of survey that uses a set of questions to collect data.

The Likert Scale as a Survey Tool

The Likert scale is a popular survey tool used to measure attitudes, opinions, or perceptions. It's a rating scale typically used in questionnaires, but it's not the questionnaire itself. Instead, it's a method of collecting data within a questionnaire.

In a survey context, a Likert scale question might look like this: "How satisfied are you with our product?" with response options ranging from "Very satisfied" to "Very dissatisfied". Here, the Likert scale is the mechanism used to gather feedback on satisfaction levels.

Types of Likert Scales

Likert scales come in various types, each serving a different purpose in a survey.

• Unipolar Likert Scale: Measures a single dimension, like satisfaction or importance. (e.g., "Not important" to "Very important")
• Bipolar Likert Scale: Measures two opposing dimensions, like agreement and disagreement. (e.g., "Strongly disagree" to "Strongly agree")
• Semantic Differential Scale: Uses bipolar adjectives to measure attitudes. (e.g., "Bad-Good", "Ugly-Beautiful")

Advantages of Using Likert Scales in Surveys

Likert scales offer several benefits when used in surveys:

1. Simplicity: They're easy to understand and use, reducing respondent burden.
2. Quantifiable Data: Responses can be quantified, making data analysis easier.
3. Versatility: They can be used to measure a wide range of attitudes and opinions.

The Likert Scale as a Questionnaire Component

In a questionnaire, a Likert scale is a key component. It's the vehicle used to collect data, not the questionnaire itself. A questionnaire might contain multiple Likert scale questions, along with other types of questions like multiple-choice or open-ended.

For instance, a customer satisfaction questionnaire might include the following Likert scale questions:

In this context, the Likert scale is a crucial part of the questionnaire, enabling respondents to express their opinions quantitatively.

In conclusion, a Likert scale is neither a survey nor a questionnaire. Instead, it's a powerful tool used within surveys and questionnaires to collect and analyze data. By understanding its role, you can leverage Likert scales effectively in your data collection efforts.