What is questionnaire?
Questionnaire is a set of questions qiven to asample of people, to gather information abaout the people's attitudes, thoughts, behaviours, etc. the answers of the sample will be compiled in order to know how the group as a whole thinks or behaves.
This method involves;
i. Population ~ the group of all the people the researcher wants to know about.
ii. Random sample ~ every person in the population equally likely to be choosen as sample. It is to ensure that the sample does represesnt the population
Selection items on questionnaires include multiple-choice, true-false, matching, or interpretive-exercise questions. besides that, there are also supply items include short-answeror essay questions.
Advantages of Questionnaire
* This method involves a large group of people (random sample).
* We can be more confident in generalizing our findings as every person in te population equally likely to be choosen as sample.
Disadvantages of Questionnaire
There are tqo disadvantages of questionnaire, as potential of problem areas;
* Different people in our sample will understand questions given differently and answers or responses might be different.
* Getting random sample of people from the population can be quite difficult. Sometimes not all sets of questionnaire returned.
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