Suppose we want to examine the effect of a fertilizer on the size of zucchini produced, and therefore, we need to establish the experimental and control groups. The control group for this experiment would be defined under which conditions?
A) soil, fertilizer, water, sun, but no zucchini seeds
B) soil, fertilizer, water, sun, and zucchini seeds
C) soil, water, sun, and no zucchini seeds
D) soil, water, sun, and zucchini seeds
E) soil, water, and sun

Question

Quizplus · Accepted Answer

The control group in an experiment is the group that does not receive the experimental treatment, in this case, the fertilizer. It is essential for the control group to be subjected to the same conditions as the experimental group except for the variable being tested (fertilizer). Therefore, the control group should have soil, water, sun, and zucchini seeds but no fertilizer, to compare the effect of the fertilizer on zucchini size accurately.

Suppose We Want to Examine the Effect of a Fertilizer