Brian suspects that his new late-night cappuccino habit is the cause of his recent insomnia problems. Which research approach would best help Brian evaluate his suspicion?

At what age does the "settling" process generally begin with regard to height?

a) 35 b) 45 c) 55 d) 65

Researchers described true childhood events and one false one (such as being lost in a store). How many people reported remembering the false event?

a. All of them b. About one-fourth of them c. None of them d. Only those who were still children at the time of the interview