Johnny wants to show that watering his crop more in the spring causes a larger harvest in the fall.Which type of study should Johnny use?

Question

Quizplus · Accepted Answer

Johnny should use an experiment to show a cause-effect relationship between watering more in the spring and a larger harvest in the fall. In an experiment, he would manipulate the variable of how much he waters his crop in the spring and measure the effect on the harvest in the fall. This would allow him to establish a causal relationship between the two variables. Descriptive studies simply describe a phenomenon, while correlational studies only show a relationship between variables without establishing causality. Case studies are in-depth examinations of individual cases and are not suitable for investigating general cause-effect relationships.

Johnny Wants to Show That Watering His Crop More in the Spring