METHODS OF DATA COLLECTION
TOOLS OF DATA COLLECTIONS THEIR TYPES ATTRIBUTES AND USES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one of these is a weakness of Questionnaires?
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Interviewer effect
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Cheap
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Low response rate
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Demand Characteristics
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Explanation:
Detailed explanation-1: -Low response rates may result in estimates that are biased by selective non-response.
Detailed explanation-2: -A low response rate can give rise to sampling bias if the nonresponse is unequal among the participants regarding exposure and/or outcome. Such bias is known as nonresponse bias. For many years, a survey’s response rate was viewed as an important indicator of survey quality.
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