Explain Questionnaire.

A questionnaire is a structured research instrument consisting of a series of questions designed to gather specific information from respondents. It is a widely used data collection method in surveys and research studies across various fields, including market research, social sciences, and academic research.

Questionnaires typically include a mix of closed-ended questions (multiple-choice or Likert scale) and open-ended questions. Closed-ended questions provide predefined response options, allowing for quantitative analysis, while open-ended questions allow respondents to express opinions or provide detailed responses.

The design of a questionnaire is critical for obtaining reliable and relevant data. Careful consideration is given to question wording, order, and format to minimize bias and ensure clarity. The goal is to elicit accurate and meaningful responses from the target audience.

Advantages of questionnaires include their cost-effectiveness, ease of administration to large samples, and standardized data collection. However, potential limitations include respondent bias, misinterpretation of questions, and the inability to explore nuanced responses in depth. Successful questionnaire design requires a balance between precision and simplicity to effectively capture the desired information.