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Smaller sample sizes—money prudently saved or money foolishly wasted?

by Steven Yarnell, Paul Anderson, and Lesley Muir of Yarnell Inc.

It is common practice to reduce the sample sizes used in quant studies to save money, a tendency exacerbated by the current economic environment. Though this approach can sometimes result in prudently saving some money, it can also have a disastrous result: spending the entire budget on a study that does not accomplish its business objective. Here's how. Read Article »