Question:

When to use weight in statistic program?

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I have a database over effects of treatment. For analyse I will use three variables: drug, BloodPressure-before, and BloodPressure-after. I was thinking just analyzing Delta-Bloodpressure by Drug. But my statistical professor says I should use the "Weight" function in my statistical program for "BloodPressure-before".So analyze: Analyze BloodPressure-After by Drug, weighted for BloodPressure-Before. Why is this better?

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1 ANSWERS


  1. ask him!

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