pilot sample

When power calculations have to be performed, and a small pilot sample is available.

Detecting which questions are better in terms of discrimination, clarity, ease of response, upon application on a pilot sample.

Begun as a Sargasso Sea pilot sampling project in August 2003, Craig Venter announced the full Expedition on 4 March 2004.

One method to get an impression of the variation of the statistic is to use a small pilot sample and perform bootstrapping on it to get impression of the variance.

Baroness Grey-Thompson, a cross-bencher, will put an amendment to ensure that before the tests are rolled out in a hurry, parliament receives an independent report on a pilot sample, with a trial period.