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Severus Snape wants to conduct a user satisfaction survey of employees of Slytherin Inc. who use...

Severus Snape wants to conduct a user satisfaction survey of employees of Slytherin Inc. who use Picassa on their home computers. There is no ready sampling frame that he can use to identify respondents. However, he does know that since some of the employees bought the software together, they probably know who has the software. Which of the following non probability sampling methods would you recommend for this survey?

simple random

systematic

referral or snowball

cluster
business   Operations-Management   
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Answer #1

referral or snowball

Since not much of people are using the software and those who are using have purchased it together. It is good to use a referral or snowball sampling where one user can refer the other user as a sample for the research. It would help eliminate outliers which would might appear in simple random or cluster sampling.

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