Which statement concerning IVF is true?
a. The cost of most IVF pregnancies is comparable to that of a typical pregnancy.
b. Most couples who are unable to become pregnant using IVF experience major depression.
c. IVF results in live birth for 5% of women 43 to 44 years of age.
d. Fathers of IVF infants tend to be less attached to their children.
c
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A psychologist has developed a series of personality inventories and wants to determine if they are valid. One of the scales measures perfectionism, so he asks a colleague for advice on how to establish the validity of this scale. The colleague tells him
that if he were to find a sample of people with __________ personality disorder, these people would obtain high scores on a scale that measures perfectionism. a. avoidant b. histrionic c. antisocial d. obsessive-compulsive
What do the histrionic, narcissistic, borderline, and antisocial personality disorders have in common?
a. mistrustfulness and the inability to connect emotionally with others b. maladaptive efforts to control anxiety and fear c. high levels of communication deviance d. impulsivity and overdramatization
Jay participates in an experiment where he and three other participants are asked to judge the quality of a series of sculptures. Jay is least likely to exhibit informational influence if
a. each sculpture is shown for only a few seconds. b. he is motivated to be very accurate in his judgments. c. there are no objective criteria by which to make such judgments. d. there is a clear and unambiguous response for each sculpture.
Which theory of color vision explains that each of the cones in the retina contains a different type of iodopsin that breaks down when struck by light, triggering action potentials and sending neural messages to the brain?
a. opponent-process theory. b. trichromatic theory. c. three-opponent theory. d. stage primary theory.