yes. only the 3rd is controlled. but it introduced another

yes. only the 3rd is controlled. but it introduced another

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送交者: Enlighten 于 2008-03-25, 13:04:41:

回答: as of the 1st and 2nd point, the 3rd experiment is controlled... 由 mangolasi 于 2008-03-25, 12:59:52:

bias in the process.

? the 3rd experiment can eb an entirely random one, though the - mangolasi (47 bytes) 2008-03-25, 13:25:17 (213747)
- my use of word 'bias' is a little misleading. - Enlighten (221 bytes) 2008-03-25, 13:47:38 (213757)