Method of the agreements

The method of the agreements is applied in biology, especially in research. This method is inductive

Method

" To compare the various cases in which the phenomenon présente" from where the first gun " If two cases or more of the phenomenon, object of research, have only one joint circumstance, the circumstance in which only all the cases agree is the cause (or the effect) of the phénomène."

3 experiments are carried out. In the first are joined together the elements has, B and C (ABC), in the same way in the second the elements has, M and NR (AMN) and in the last the elements has, X and Y (AXY). At the conclusion of the experiments ( ABC , AMN and AXY ), a phenomenon P occurs. therefore, the term has common to all the series antécédantes is the cause of P, the other terms not playing any part.

Theorization

John Stuart Mill, in 1843 in System of deductive and inductive logic , Delivers III: OF INDUCTION Chap VIII: four methods of experimental , downloadable research on traditional of social sciences

Limits

The conclusions must be checked by the Méthode of the differences

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