preexperimental

adjective
pre·​ex·​per·​i·​men·​tal | \ ˌprē-ik-ˌsper-ə-ˈmen-tᵊl How to pronounce preexperimental (audio) also -ˌspir-\
variants: or pre-experimental or less commonly preexperiment \ ˌprē-​ik-​ˈsper-​ə-​mənt How to pronounce preexperiment (audio) also  -​ˈspir-​ \ or pre-experiment

Definition of preexperimental

1 : existing or occurring before an experiment a preexperimental questionnaire
2 : of or relating to a simple study or plan for research that typically lacks randomization and inclusion of a control group pre-experimental research design

First Known Use of preexperimental

1897, in the meaning defined at sense 1

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The first known use of preexperimental was in 1897

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