Chapter 1 ( Epidemiology ) Flashcards by Ahmed Safwat | Brainscape

Q

Using only hospital records to estimate population prevalence ?

A

Berkson bias

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Q

Subjects behavior is altered because they are being studied , which only a factor when there is no control group in a prospective study ?

A

Hawthorne effect

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Q

When there is experimenter expectancy , experimenters expectations are inadvertently communicated to subjects who then produce the desired expectations ?

A

Pygmalion effect

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Q

Confidence interval ?

A

= study result +- [ Z score x ( SD/ square root of n ) ]

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Q

Confidence interval ?

A

= study result +- [ Z score x ( SD/ square root of n ) ]

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Q

Confidence interval ?

A

= study result +- [ Z score x ( SD/ square root of n ) ]

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