Stella, a researcher, conducts a study to determine the relationship between the use of vitamin C tablets and aggressive behavior. She chooses 200 participants for the study and plans to give real vitamin C tablets to 100 participants and give inert placebos to others. She uses the double-blind procedure to conduct the research. Which of the following is true about this study?
A. Only Stella knows who is given real drugs and who is given inert placebos.
B. Both Stella and the participants know who is given real drugs and who is given inert placebos.
C. Only the participants know who is given real drugs and who is given inert placebos.
D. Neither Stella nor the participants know who is given real drugs and who is given inert placebos.
Answer: D
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A neonate has decreased attentiveness and is less socially responsive than would be expected. Which of the following may have occurred?
a. The mother experienced a shorter than normal labor. b. The mother was given general anesthesia during the birth. c. The mother drank alcohol during pregnancy. d. The mother smoked during pregnancy.
In the context of psychological researches, debriefing is the process of explaining the purposes and methods of a completed procedure to a participant
Indicate whether the statement is true or false
In national championship collegiate athletic competitions, the team that has to travel across five time zones is at a disadvantage because of
a. sleep deprivation. b. jet lag. c. disruption in biorhythms due to a fear of flying. d. preadaptation.
Which of the following statements is true about muscle–fat makeup?
A) Body fat reaches a peak at about 9 months of age. B) At birth, boys have slightly more body fat than girls. C) During the early school years, boys have slightly more body fat than girls. D) During puberty, the arm and leg fat of boys increases.