It may not be possible to use a probability sample to observe behaviour in public places
because:

Question

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it is difficult to gain access to such social settings

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the findings of such studies are not intended to have external validity

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it is not feasible to construct a sampling frame of interactions

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it is difficult to gain access to such social settings

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researchers prefer not to use random samples whenever possible

1.	It may not be possible to use a probability sample to observe behaviour in public places because:
A.	the findings of such studies are not intended to have external validity
B.	it is not feasible to construct a sampling frame of interactions
C.	it is difficult to gain access to such social settings
D.	researchers prefer not to use random samples whenever possible
Answer» C. it is difficult to gain access to such social settings

Discussion