Advantages, They gather a large amount of data in a short time frame, They are practical and easy to administer, The data is reliable, as the research tool can be used again, The data can be quantified, often using computers, Disadvantages, They are a poor research tool for understanding meaning or emotion, People may not read a question in the way that the researcher intended, It is difficult to discover if a respondent is truthful, If the design is poor, they lack validity.

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