Which best summarises the conclusion of reviews of prospective studies into the relationship between hostility and heart disease?
A. No relationship has been convincingly demonstrated.
B. A weak relationship has been demonstrated both for initially healthy individuals and for those already diagnosed as at risk.
C. A weak relationship has been demonstrated for initially healthy individuals but not for those already diagnosed as at risk.
Answer: C
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A(n) ____ relationship is based on reciprocity and fairness; each person does something for the other mainly in the expectation of getting some direct benefit in return
a. communal b. pragmatic c. distributive d. exchange
Habitual use of nicotine does not lead to physiological dependence on the drug
Indicate whether the statement is true or false
Which of the following people would be most likely to develop coronary heart disease?
A. a person who eats a diet high in fish B. a person who exercises regularly C. a person who eats a diet high in fruit D. a person whose father died of a heart attack
At about what age does babbling start?
a. Birth b. 6 months c. 10 months d. 14 months