The main advantage of questionnaire is that questions are placed per seriatim and you can answer them at your convenience.
It is easier to obtain information from a large number of people.
A questionnaire is a good way to collect data from a very large group of people. This will be more effective than interviewing if you have large groups of people.
To collect information
Surveys make it easy to collect data from a number of sources.
Questionnaires allow the researcher to find the answers to the questions that they want to know. This can strongly negate or reinforce the hypothesis. Where they are bad is that you are asking questions as a researcher. Therefore, you may miss the real reasons and actual practices of the thing that you are studying.
what is advantage of using this type of propagation
Some major advantages of using self-report surveys to collect information regarding juvenile crimes include information gained on the patterns of crime. Information about delinquency and the distribution of crime is also learned.
A general web search will list numerous sites for you to partake in free online surveys. A number of sites will even pay you to partake in their surveys. A number of surveys do have qualifications to meet if you are wishing to be paid for your efforts, as they are in regards to services or products one may be using. Nonetheless, if you are just looking to provide your opinion, that is completely possible, and an account would not be needed to do so. However, beware, as some survey sites may place spyware or adware on your computer.
Surveys make it easy to collect data from a number of sources.
The best way to find out is by speaking to someone that is an expert in this field. Take surveys and questionnaires and ask for peoples opinions as well as using your own judgment.
Precise determination of species and clarity of communication.
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There are a number of disadvantages of using questionnaires. This may be a limiting method of collecting data as those used as a sample population will only answer the questions specifically asked and not give independent opinions.
Chandra Ramphal has written: 'A handbook for developing and using questionnaires in research' -- subject(s): Questionnaires, Handbooks, manuals, Research
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because it is more portable