Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Get quick and reliable solutions to your questions from knowledgeable professionals on our comprehensive Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

In an experimental study, which of the following is true?

a. The independent variable is manipulated.
b. The dependent variable is manipulated.
c. Both the independent and dependent variables are manipulated.
d. The environment is manipulated.