Cecilia Rey Sep 5, 2010:

Booster sample Vane, aquí se explica bien lo que es "booster sample":

A booster sample allows you to focus on a small subgroup that wouldn't normally be adequately represented in a main survey, without the expense of increasing the sample size for all of the main survey

For instance in a natural sample of 1000 all adults you may only achieve 50 interviews with single mothers as an example. If this is important to your business, you need a bigger sample to understand this group better. But rather than double the whole sample size to 2000, you carry out the 1000 sample, then do a second screening exercise to find your additional 50 interviews, so reducing cost (the screening plus 50 interviews being much cheaper than taking an extra 950 interviews).

http://forum.researchinfo.com/showthread.php?t=1467

Eileen Banks Sep 5, 2010:

Yo creo que si Vane, una muestra sobre una muestra ya tomada parecería ser igual que una muestra de refuerzo. Suerte! :)

Vanesa Frejtman (asker) Sep 5, 2010:

Gracias! Eileen. Quisiera saber si "muestra de refuerzo" y "sobremuestra" son la misma cosa. Porque he visto traducido "booster sample" como sobremuestra en un documento del mismo proyecto y no se si es un error o si debo mantener la terminología.