Dr. Bloomin wants to investigate the impact of talking to plants on their growth. He decides to talk to a group of 40 tulips each day for six weeks. A second group is not talked to at all. After six weeks he discovers that the tulips he talked to are five centimetres taller than the tulips not talked to. In this example, the dependent variable is:

Question

Quizplus · Accepted Answer

The dependent variable is the variable being measured in the experiment, which in this case is the height of the tulips. The independent variable is the variable being manipulated, which is whether or not the tulips are spoken to. The groups of tulips are just the different levels of the independent variable, so they are not the dependent variable.

Dr Bloomin Wants to Investigate the Impact of Talking to Plants