Because the respondents in the smoking study above had become familiar with the measuring instrument, the results of the study are threatened by the instrumentation effect.

Question

Quizplus · Accepted Answer

The scenario described is more accurately threatened by a testing effect, specifically a practice effect, where respondents' familiarity with the measuring instrument over time could influence their responses, rather than an instrumentation effect, which refers to changes in the measurement tool or its calibration over time.

Because the Respondents in the Smoking Study Above Had Become