By the way, if you do anything with a convenience sample, results may be heavily biased. If you need to use nonprobability sampling, auxiliary data could be extremely helpful. (They could be very helpful regardless.) Also, if you want to know more about non probability sampling, I recommend this:
https://www.researchgate.net/publication/273561892_Summary_Report_of_the_AAPOR_Task_Force_on_Non-probability_Sampling
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James Knaub
Lead Mathematical Statistician
Retired
Original Message:
Sent: 04-17-2016 08:28
From: Man-Fung Lo
Subject: Probability/Non-probability Sampling vs. Parametric/Non-parametric Test
Dear all,
I would like to confirm the relationship between sampling technique (Probability/Non-probability Sampling) and type of statistical test (Parametric/Non-parametric Test).
If convenience sampling is used (non-probability), can parametric test be applied? Is the data from convenience sample only be analyzed with non-parametric tests?
Thanks!
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Kelvin
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