Dr. johnson wants to investigate whether the physiological measure, heart rate variability, varies over time or whether it is a trait that stays stable within the same person over time. he records participants’ heart rate variability once at the beginning of the semester and once at the end of the semester. he finds a high positive correlation (r = .65) between the first and second time points. which type of reliability is he examining?

(hope) unrealistic portrayals of slim bodies can encourage people to lose an unhealthy amount of weight. being underweight or malnourished can lead to a. liver abnormalities b. tendon rupture c. muscle damage d. heart issues

How do healthier citizens save the government money?

Hiv is inactivated in the laboratory after a few minutes of sitting at room temperature, but the flu virus is still active after sitting for several hours. what are the practical consequences of these findings? a) hiv can be transmitted more easily from person to person than the flu virusb) the flu virus can be transmitted more easily from person to person than hivc) this property of hiv makes it more likely to be a pandemic than the flu virusd) disinfecting surfaces is more important to reduce the spread of hiv than the flu