Variables other than the independent variable on which participants differ are termed variables. They threaten validity.

Brian is admitted to the hospital after a motor vehicle crash. during his stay at the hospital, physical therapists him with his recovery. this is care?

What is the main difference between trace elements and the main elements that make up the body? 1) main elements consist of heavier atoms. 2) trace elements are only needed in small amounts. 3) trace elements consist of heavier atoms. 4) main elements are only needed in small amounts.

Li believes in using traditional remedies. she firmly believes that if she balances her and she will stay healthy.