A feature of a well-designed questionnaire is its ability to:

A well-designed questionnaire is primarily focused on collecting data efficiently. This involves crafting questions that are clear, concise, and directly related to the research objectives. Efficient data collection ensures that respondents can easily understand and answer the questions without ambiguity, which helps in obtaining accurate and relevant information.

An efficient questionnaire minimizes the time and effort required for respondents, which can lead to higher response rates and more reliable data. It enables researchers to gather significant amounts of useful data in a structured manner, allowing for easier analysis and interpretation.

While it's true that there are various approaches to gaining insights, options like encouraging long answers, limiting subjective responses, or including emotional questions may complicate data collection or not align with the goal of efficiency. Long answers can lead to varying levels of detail and interpretation, subjective responses can introduce bias, and emotional questions might not provide quantifiable data. Thus, the emphasis on efficiency is paramount in developing an effective questionnaire.