000			01874nab a22003017a 4500
001			G69580
003			MX-TxCIM
005			20230208220427.0
008			121211b |||p||p||||||| |z||| |
022			_a0162-1459
022			_a1537-274X (Online)
024			_2https://doi.org/10.1080/01621459.1955.10501294
040			_aMX-TxCIM
041			_aeng
090			_aREP-683
100	1		_aDunnett, C.W. _929423
245	1	2	_aA multiple comparison procedure for comparing several treatments with a control
260			_c1955. _aUnited Kingdom : _bTaylor and Francis,
340			_aPrinted
520			_aA common problem in applied research is the comparison of treatments with a control or standard. Such a situation may arise, for example, when an agronomist test the effects on crop yield of the addition of chemicals to the soil, or when a pharmacologist assays drug samples to determine their potencies. In designing an experiment to in the experiment a control in the form of either a dummy treatment, to measure the magnitude of the experimental response in the absence of the treatments under investigation, or some recognized standard treatment. Sometimes past experience with the control will suffice, but often this cannot be relied upon due to altered environmental conditions. thus the agronomist may leave a few of his experimental plots untreated for comparison with the treated plots, and the pharmacologist may measure the response concomitantly with the test samples in order to estimate the potencies of the latter.
546			_aText in English
595			_aRPC
650		7	_2AGROVOC _99142 _aResearch
650		7	_gAGROVOC _929527 _aEquations
650		7	_2AGROVOC _91066 _aCrop yield
773	0		_tJournal of the American Statistical Association _gv. 50, no. 272, p. 1096-1121 _dUnited Kingdom : Taylor and Francis, 1955. _x0162-1459
942			_cJA _2ddc
999			_c20197 _d20197