Question

J.C. wants to determine if there is a relationship between room color and sleep. Based on his research, J.C. makes an educated guess that people fall asleep more quickly in a room painted blue than in a room painted yellow. He asks several people which color they like better, yellow or blue, and uses their responses to see if his educated guess was correct. What is missing from J.C.’s scientific investigation?

Answer 1

an experiment that directly tests the hypothesis research on the topic to see what others have learned a hypothesis that is based on research and that can be tested an analysis of the responses from all of the test subjects