preexperiment

名词 n. 形容词 adj.

英文释义

名词 n.
  1. A simple form of research that examines a group or groups before and after an event, to see whether there is change, but does not employ a control group.
    — A study that uses only a manipulation is considered a pre-experiment. As the name implies, a pre-experiment has not quite achieved the level of control necessary to be termed an experiment at all.
形容词 adj.
  1. Before an experiment takes place. not-comparable

词形变化

preexperiments plural

词源

词源 1
From pre- + experiment.
词源 2
From pre- + experiment.
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