Earl and Pearl are twins formed by separate ova being fertilized by separate sperm cells. What kind of twins are they?
What will be an ideal response?
The ideal answer should include:
1. Earl and Pearl are dizygotic twins.
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In a study on whether people could pretend to be hypnotized, what did some of the hypnotized subjects do that the pretenders did not? a. They made themselves stiff enough to balance with head on one chair and feet on another. b. They tolerated brief sharp pain without flinching or screaming
c. They sat down when told to, without first checking to see whether a chair was present. d. They expressed puzzlement at seeing one person in two places.
The secular trend toward earlier puberty in females during the period up to the mid-20th century ______________________
a. has most likely leveled off during the past 40 to 50 years or so b. has been matched by a similar and equally large trend for boys c. was caused by increasing obesity in girls d. was most likely due to hormones placed into animal feed
According to Piaget, a formal operational child's thinking is characterized by all of the following except
a. requiring no referents in real life for thought. b. being detached from reality. c. thinking about what could be, as well as what is. d. generating hypotheses about possibilities.
Extraordinary means of treatment
a. are not morally obligatory b. may have side effects that are burdensome on the patient or on care providers c. can only be identified in particular situations d. all of these e. none of these