Which of the following is most suggestive of dissociative identity disorder?
a. Grace's feelings about James switch from positive to negative instantly.
b. Peter could not explain why he didn't complete the project.
c. Delilah was never able to make up her mind.
d. Kyla could not recall where she had been or what she had done all day.
d. Kyla could not recall where she had been or what she had done all day.
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Which of the following statements about the breech position is true?
A) Cesarean delivery is never justified when the baby is in the breech position. B) The breech position decreases the chance of squeezing of the umbilical cord. C) Certain breech babies fare just as well with a normal delivery as with a cesarean. D) The breech position decreases the chances of head injuries during delivery.
Cosella is conducting an experiment where she assesses how quickly teenagers can run a 100-meter race after consuming specific amounts of caffeine. She divides her sample up into three groups. Group 1 receives a glass of water with no caffeine added. Group 2 receives a glass of water with an amount of caffeine equivalent to that in one cup of coffee. Group 3 receives a glass of water with an
amount of caffeine equivalent to that in two cups of coffee. Each participant is then timed as they run the course. In this study, the independent variable is a. the previous running experience of each participant. b. the teenagers who are being studied. c. the time it takes to run the 100-meter race. d. the amount of caffeine being ingested.