preexperimental

adjective

pre·​ex·​per·​i·​men·​tal ˌprē-ik-ˌsper-ə-ˈmen-tᵊl 

 also  -ˌspir-

variants or pre-experimental or less commonly preexperiment

ˌprē-ik-ˈsper-ə-mənt 

 also  -ˈspir-

or pre-experiment

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

Word History

First Known Use

1897, in the meaning defined at sense 1