Determine Whether the Study Is an Observational Study or an Experiment

question 51

Multiple Choice

Determine whether the study is 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 on a farm to group one and the remaining plots to group two. On the plots in group one, the new fertilizer was
Used for a year. On the plots in group two, the old fertilizer was used. At the end of the year the average crop
Yield for the plots in group one was compared with the average crop yield for the plots in group two.

• A)experiment
• B)observational study

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Numerical outcomes derived from assessments designed to measure human intelligence and cognitive abilities.

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The process of ending the separation of students based on racial background in educational institutions.

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