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experimental error , experimental error Error that arises because of variation between experimental samples. It may be attributed to differences in materials and/or techn… Experimental Design , Careful and detailed plan of an experiment.
In simple psychological experiments, one characteristic—the independent variable—is manipulated by the ex… Experiment , EXPERIMENT.
This entry traces the life of experiment from its emergence in the early seventeenth century to its transformation to a collective activi… Control Group , control group A group used for comparison with another, either because it represents the most common or typical case, or because it illustrates the a… Controlled Pollination , controlled pollination Herbert Spencer Jennings , Jennings, Herbert Spencer
JENNINGS, HERBERT SPENCER
animal behavior, physiology, genetics, protozoology, zoology, philosophy of science. For the orig…
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experimental control