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Guidelines for determining nonprobabilistic sample sizes are virtually nonexistent. Purposive samples are the most commonly used form of nonprobabilistic sampling, and their size typically relies on the concept of “sat...

In a follow-up study of incarcerated Connecticut youth, 69 subjects were interviewed during young adulthood. On follow-up, 26 gave histories of abuse discrepant with histories obtained from records and interviews conduct...

BACKGROUND: A 10-question screening scale of psychological distress and a six-question short-form scale embedded within the 10-question scale were developed for the redesigned US National Health Interview Survey (NHIS). ...