Any measure with the action of altering a response under examination. For instance, if a subject is aware of clinical observation, their reactions may be altered more by t he observer than the stimulus itself.

REACTIVE MEASURE: "The fact that James was seated so close to the attractive grad student observing him had a reactive measure on the results."
Cite this page: N., Pam M.S., "REACTIVE MEASURE," in, April 28, 2013, (accessed May 12, 2021).