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10 20 AM: Scott is building a sample application using the tools.
After building a sample app (the consumer-facing Geoloqi), Case says that their phone just started ringing.
Publicly held Nielsen and Media Metrix, whose initial public offering is pending, use similar approaches in building a sample of users that is supposedly projectable onto tens of millions of Web viewers.
Here, the method is not aiming at inviting a statistically representative sample of participants, but building a sample of maximum heterogeneity to include a high number of different perspectives.
The expected recruitment bias was controlled by building a sample of patients matched for propensity score.
Consequently, snowballing or chain-referral methods of building a sample are the preferred techniques adopted by researchers.
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TLS sampling involves building a sampling frame from a list of location and time combinations based upon the locations and times where you would expect to find members of the target population.
Common challenges and creative solutions were reported by many of the research teams, including building a sampling frame, developing front-office rapport, adapting recruitment strategies, promoting buy-in and interest in the research question, and training a staff recruiter.
In building a representative sample of voters to include in a survey, pollsters have to make assumptions about who is likely to vote.
This suggests that the BES survey did a better job than all the pre-election phone and online polls of building a genuinely representative sample.
So Byers has shifted his focus to building a locality collection (samples from all over the world) of stibnite a silvery gray crystal that is relatively inexpensive and less in demand.
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