A sleep disorder characterized by sudden nodding off during the day and loss of muscle tone following moments of emotional excitement is ________

A researcher conducts a study demonstrating a positive correlation between grades and class attendance. All of the following explanations could account for this pattern of results, EXCEPT:

a. high levels of class attendance leads to more learning and higher grades b. students who are highly confident tend to skip more classes and also tend to earn higher grades c. conscientious students come to class more and get higher grades d. getting good grades make people like the class better and consequently they attend more often

During prolonged dying,

A) avoidance may be especially pronounced. B) confrontation may be highly traumatic. C) the bereaved engages in anticipatory grieving. D) the bereaved engages in disenfranchised grief.