A research team found that men who did not exercise had a higher rate of heart disease. Which of the following explanations best illustrates the third-variable problem?
a) Heart disease might make it more difficult for men to exercise.
b) The relationship between exercise and heart disease might not be causal.
c) Including men who smoke in the study might erase the relationship between exercise and heart disease.
d) Smoking might cause both heart disease and reluctance to exercise.
d
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a. True b. False Indicate whether the statement is true or false
______ is a table of the proportion of scores in a normal distribution for many different z-score values.
A. z-Score table B. Unit normal table C. Standard deviation table D. Standard distribution table
Sigmund Freud’s theory of forgetting is called ____
a. ?cue-dependent forgetting b. ?decay c. ?repression d. ?interference
As children get older, particularly in high school and college,
a. females show a substantial advantage in mathematical calculation. b. females show a moderate advantage in mathematical problem solving. c. males show a substantial advantage in mathematical calculation. d. males show a moderate advantage in mathematical problem solving.