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/sci/ - Science & Math

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7352564 No.7352564 [Reply] [Original]

So, if there are 10 patients, this means that (n=10). But each of the patients was measured twice (n=3). So, in the end, there were 30 measurements (n=30).

wtf? which one is the correct use of (n=) in this situation? and how are the other n's called? are they called (m=) and (o=) ?

>> No.7352570

>>7352564
>twice
*I meant three times, ofc

>> No.7352631

Shit, you can call them whatever you like.

>> No.7352640

>>7352631
I'm not sure if the professor or the reviewer would see it that way, too

>> No.7353106

>>7352640
why not mayne

>> No.7353179

You can use any letters really. Usually o isn't used though because its similarity to 0.

Alternatively you can use indices, for example <span class="math">n_p[/spoiler] for number of patients, <span class="math">n_m[/spoiler] for number of measurements and <span class="math">N[/spoiler] for grand total.

It doesn't really matter what you call them as long as its easy to distinguish between them.

>> No.7353193

>>7352640
N=10, at least with work I do. The 3 measurements would be used as individual components to an overall average for the single item with an error range. I forgot the exact term for it but the idea is each of the theee measurements themseles dont act as seperate pointa but parts of one more accurate measurement accounting for error.

Also consider your sample of n being unique and there are only 10 unique sets with variance of each.

Hope that helps at all.

>> No.7353319

>>7352564
N=10 based on what you said. N is your sample size. You can have a pre and post test; however, the sample size remains the same.

>> No.7354439

OP here, thanks for the replies