A popular theory of love relationships states that the type of attachment infants develop with their caregivers will be the type of attachment those infants, when they are adults, will develop with their lovers

A psychologist or a psychiatrist is likely to diagnose one's difficulty in attaining adequate nightly sleep as a psychological disorder

A) even if it occurs relatively infrequently. Incorrect. Generally speaking, infrequent disruptions of the sleep cycle are not considered to be a sleep disorder, even if they are inconvenient or disruptive to a person's life. B) if it interferes with daily activities such as work and negatively impacts a person's health. Correct. Everybody has the occasional difficulty sleeping, but when those difficulties significantly interfere with a person's functioning, they may indicate a sleep disorder. C) only if the person feels that the lack of sleep is causing problems in other areas. D) when it results from a deliberate choice, such as studying all night for an exam.

Which of the following correlations of intelligence level would provide evidence for an environmental influence on intelligence?

a) brothers and sisters who have high intelligence b) children and their parents who all have low intelligence c) adopted children and their adoptive parents who have high intelligence d) adopted children and their biological parents who have low intelligence