Determine whether the study depicts an observational study or an experiment
-A scientist was studying the effects of a new fertilizer on crop yield. She randomly assigned half of the plots ona farm to group one and the remaining plots to group two. On the plots in group one, the new fertilizer wasused for a year. On the plots in group two, the old fertilizer was used. At the end of the year the average cropyield for the plots in group one was compared with the average crop yield for the plots in group two.
A) experiment
B) observational study

Question

Quizplus · Accepted Answer

This is an experiment because the scientist actively intervened by applying different treatments (new vs. old fertilizer) to randomly assigned groups and then measured the effects of these interventions on crop yield.

Determine Whether the Study Depicts an Observational Study or an Experiment