Intelligence Quotient (IQ) is determined by the formula

Polyphasic sleep-reduction studies demonstrate that some people can function reasonably well on as little as __________ hours of polyphasic sleep per day

A) 2.5 B) 4.5 C) 5.5 D) 6.5 E) 7.5

A healthy-eating program requires participants to monitor their vegetable consumption and to increase the number of vegetables they eat. The program sets a target for the number of vegetables a participant is required to eat each day, and the target number is changed every week. Although the target moves up and down, it gradually increases toward a goal of eight servings of vegetables daily after

six weeks. Suppose this program were evaluated using a single-subject design. Which design would be appropriate? a. ABAB design b. multiple-baseline design c. alternating-treatments design d. changing-criterion design