Which aspect of a sound wave determines the sound's pitch?
A. Wavelength
B. Amplitude
C. Decibels
D. Wave height
Answer: A
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The biological explanation for the correlation between optimism and physical health focuses on
a. risky behaviors and adrenaline. b. alcohol consumption. c. the immune system. d. genetic heritability.
After Hurricane Katrina, Cindy was found walking by the roadside. She could not remember how she got to this place. She was taken to the local hospital where they found that she had no physical trauma to the brain nor any major injuries besides the emotional trauma she had obviously experienced. According to Freud, the details of her experiences in the hurricane have been
a. psychogenically blocked within her preconscious mind. b. fixated at the subconscious level. c. physically altered by a rush of endorphins. d. repressed into her unconscious mind.
A researcher who studies a fixed group of people over a long period of time is, by definition, using the __________
a. longitudinal method b. correlational method c. cross-sectional method d. case study method
Which of the following children is most likely to be above North American growth norms?
A) Timmy, a Caucasian-American boy B) June, an Asian girl C) Freddy, an African-American boy D) Kim, an Asian boy