Researchers studying plant growth raised plants in two different rooms.One room had soft music playing 24 hours a day; the other room was silent.The researchers found that the plants grew better in the room where the music was played.In this study, the amount that the plants grew would be:

Question

Quizplus · Accepted Answer

The amount that the plants grew is the variable being observed and is affected by the presence of music, making it the dependent variable. The independent variable would be the presence of music in the room. A placebo is a medically ineffective treatment given to a control group in a study, which does not apply to this scenario. A confounding variable is a factor that affects the dependent variable but is not controlled for in the study, which is also not applicable here.

Researchers Studying Plant Growth Raised Plants in Two Different Rooms