Students who are interested in a subject may spend more time studying that subject, so there is a relationship between these two variables
We don't know if the interest in the topic leads to more studying or if more studying generates greater levels of interest. This uncertainty illustrates the
a. path analysis problem.
b. third variable problem.
c. restricted range problem.
d. directionality problem.
D
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What can we conclude about the grades that males and females receive in mathematics courses?
a. Girls receive higher grades than boys up through sixth grade, but older boys receive higher grades than do older girls. b. No consistent gender differences have been reported in math grades. c. With some consistency, girls receive higher grades. d. With some consistency, boys receive higher grades.
Of 50 women treated for breast cancer in the local cancer unit, 35 of them survived for at least 5 years. For a woman who has just been diagnosed with breast cancer, our best guess is that the probability that she will survive for 5 years is
a. 35/50 = .70 b. 15/35= .43 c. 35/100 = .35 d. we don't have enough information.
Lacey's voice teacher asked her to sing a higher pitch. Therefore, she adjusted the _____.
A. amplitude B. frequency C. intensity D. loudness
Cardiorespiratory function, relative leanness, muscular strength, muscular endurance, and flexibility are examples of ____
a. physical health c. physical exercise b. physical fitness d. physical activity