Why is a questionnaire useful?

By Garret Patton on the 11th of June, 2012

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    questionnaire is a research instrument consisting of a series of questions and other prompts for the purpose of gathering information from respondents. Although they are often designed for statistical analysis of the responses, this is not always the case. The questionnaire was invented by Sir Francis Galton.

    Questionnaires have advantages over some other types of surveys in that they are cheap, do not require as much effort from the questioner as verbal or telephone surveys, and often have standardized answers that make it simple to compile data. However, such standardized answers may frustrate users. Questionnaires are also sharply limited by the fact that respondents must be able to read the questions and respond to them. Thus, for some demographic groups conducting a survey by questionnaire may not be practical.

    Source - wikipedia

    Refine By henry warren on the 10th of August, 2012

Suggested reading…

Identify possible sources of bias in the design and use of data collection sheets & questionnaires

Let’s say someone is hired to find out how often people go to the cinema. They design a questionnaire for people to complete. Then, they go and stand outside a cinema, and ask people as they leave how often they go to the cinema. The person looks at the responses at the end of the day, and finds that everyone goes to the cinema really often. They return to their employer, and report that everyone in the country is going to the cinema practically all the time!

In reality, there will be lots of people in the country, or even in a single town, who just don’t go to the cinema at all. There will be yet more people who go very rarely. But if you stand outside a cinema asking people how often they go, it’s likely that you’re going to be only asking the kind of people who are regular cinema goers, and you’ll miss out all the people who never go. When this happens, we call it bias.

The idea of bias will also be covered in your history lessons, and possibly in your English lessons.

For your exam, you’ll be expected to be able to identify biased surveys and questionnaires.

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