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2 cards from this section. Quick, good the night before a test.
What is a systematic error?
Think about calibration and bias.
How do you detect random errors?
What happens to repeated measurements?
What type of error occurs consistently in the same direction?
Focus on the definition of systematic errors.
True or False: Random errors can be corrected precisely.
Think about the unpredictability of random errors.
A thermometer consistently reads 2 degrees higher than actual. You take 10 measurements and find a range of 18 to 22 degrees. Discuss the implications of systematic and random errors in your data.
What is the consequence of mixed errors in reporting findings?
In a study examining blood pressure, one device consistently reads 5 mmHg lower (systematic) than another, but repeated measures with the same device show a range from 110 to 130 mmHg (random). Calculate the adjusted averages and discuss reliability.
How does adjustment affect the analysis of results versus the random variability?
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