METHODS OF DATA COLLECTION
CONCEPT OF SAMPLING AND OTHER CONCEPTS RELATED TO SAMPLING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Researcher bias
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Difficult to carry out
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unrepresentative
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Expensive
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Detailed explanation-1: -There is the risk of creating statistically inadequate samples-a sample that is too small to accurately represent a target population. This type is usually used when a target population is spread over a wide area.
Detailed explanation-2: -An unrepresentative sample is one that does not reflect the distribution of characteristics of the target group, cannot be generalised to the target population, and is therefore biased. There are a number of different sampling methods.
Detailed explanation-3: -Opportunity sampling can produce a biased sample as it is easy for the researcher to choose people from their own social and cultural group. This sample would therefore not be representative of your target population as you friends may have different qualities to people in general.