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Random Sampling

From: Stan Hilliard
Date: 04 Jan 2000
Time: 00:47:50

Comments

I think that the weakest link from a theory standpoint could be the issue of random sampling. If I understand the selection process, you generate a frame with a hierarchical pyramid scheme, and then select a sample randomly from the frame.

You might study and analyze whether this selection method meets the criterion of random selection. That is, prior to collecting the sample, does every individual in the UK who is over 17 years old and has access to the internet have the same probability of being selected. In other words, if you select a random sample from a frame, but a non-random process generated the frame, do you really have a random sample that reflects the population?

Sincerely, Stan Hilliard


Last changed: November 20, 2007