Professor boredom has noticed that his students keep falling asleep during his lectures. he thinks that keeping the lights in the lecture hall on at their brightest level will to keep students awake. he decides to give the same lecture to three groups of people. he holds one class session with bright lights, one class session with normal lighting, and one class session with dim lights. professor boredom has a teaching assistant count the number of sleepers at the end of each dependent variable(s) in the above experiment is (are)

Two types of survey questions are open questions and closed questions. an open question allows for any kind of response; a closed question allows for only a fixed response. an open question and a closed question with its possible choices are given below. list the advantages and disadvantages of each question. open question: what can be done to get students to eat healthier foods? closed question: how would you get students to eat healthier foods? 1. mandatory nutrition course 2. offer only healthy foods in the cafeteria and remove unhealthy foods 3. offer more healthy foods in the cafeteria and raise the prices on unhealthy foods what are the advantages of an open question?