Dependent variable... Is it the one you *measure* or the one you *calculate*

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odjoo
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#1
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So I'm using a physical tool to *measure* a quantity. I'm then using that quantity to calculate another quantity. Is the initial measurement my dependent variable, or the calculated quantity after that?

Here's an example: (A-Level)
In the double slit experiment, I'm using a vernier caliper to *measure* the fringe spacing. I'm using that measurement, w, to *calculate* the wavelength, lambda, using λ = w s /D .
Is the fringe spacing my dependent variable, or the wavelength?
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mqb2766
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#2
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(Original post by odjoo)
So I'm using a physical tool to *measure* a quantity. I'm then using that quantity to calculate another quantity. Is the initial measurement my dependent variable, or the calculated quantity after that?

Here's an example: (A-Level)
In the double slit experiment, I'm using a vernier caliper to *measure* the fringe spacing. I'm using that measurement, w, to *calculate* the wavelength, lambda, using λ = w s /D .
Is the fringe spacing my dependent variable, or the wavelength?
Depends mean it depends on the other variable. So the calculated one.
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odjoo
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#3
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(Original post by mqb2766)
Depends mean it depends on the other variable. So the calculated one.
Thanks!
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