What is a common problem in epidemiological studies?
a) They are experimental.
b) They cannot measure prevalence, only incidence.
c) They often draw on samples that are not representative of the population being studied.
d) They do not use undergraduate samples.
c
You might also like to view...
Concerning the effects of video game and television on aggression, which of the following statements is FALSE?
a. The more personalized, intimate experience of video games may heighten the impact of the violence. b. By practicing violence against other people, video game players may learn to be aggressive in real life. c. The repeated exposure to violence in video games and television desensitizes viewers, making them less likely to react negatively to violence and, hence, more prone to engage in it. d. After watching television or playing a violent video game, only young children show an increase in aggression, not adolescents nor adults.
If caregivers are to be missed when absent, infants must perceive that they continue to exist. This statement reflects the concept of _____
A) object permanence B) classical conditioning C) primary circular reaction D) secondary circular reaction