A researcher investigates whether there is a relationship between hours of sleep and memory for photographs by having 40 people sleep in the laboratory and waking 20 randomly selected participants after 4 hours of sleep and the others after 8 hours of sleep. After they are awakened, each participant is asked to study 12 photographs and then recall as many details from the photographs as possible
What is the independent variable in this study?
a. number of details recalled from photographs
b. hours of sleep
c. sleeping in the laboratory
d. there is no independent variable; the study is correlational
B
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According to the discussion of social class and health status in the United States,
a. several different measures of social class show no relationship between social class and life expectancy. b. the US spends more money on health care, per person, than any other country in the world. c. the data show than the US is among the top 10 countries in the world, with respect to life expectancy. d. as of 2007, about 5 million US citizens did not have any health insurance.
"You're going to like this guy," your buddy says to you about a new friend who is coming to your house. "He never has a bad thing to say about people, he gets along and works well with others, and he's just pleasant to be around.". Based on this description, you are about to be introduced to someone who is a. high in openness to experience. b. high in agreeableness
c. low in extraversion. d. low in conscientiousness.
Simon's decision whether or not to help someone is based primarily on whether that person seems to deserve assistance. Simon is motivated by concerns about
a. administrative rules. b. equity. c. social responsibility. d. justice.
A child is deemed to be at particular risk for schizophrenia if
a. none of his close relatives had schizophrenia but he experienced a severe environmental stressor. b. he experienced a severe environmental stressor such as loss of a family pet. c. he experienced parental inconsistency due to parents working. d. he experienced parental inconsistency, hostility, and early loss as well as having close relatives with schizophrenia.