By the age of 2, most toddlers will have a vocabulary of about ____
a. 100 words
b. 200 words
c. 300 words
d. 400 words
Answer: B
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Which of the following statements about stress is correct?
A. The response an individual will have to a stressor can be easily predicted. B. Physical factors play a role in determining the severity of stress. C. Prolonged exposure to the stress hormone cortisol can damage brain cells. D. Changes in the level of one's external support system are unrelated to stress reactions.
Around the world, child labor is highest in Germany and Spain.
Indicate whether the statement is true or false.
Research by Fox (2005) suggests that which child would be most likely to display behavioral inhibition (i.e., shyness)?
a. a child who has a long allele 5-HTTLPR and whose parents provided low levels of social support b. a child who has a long allele 5-HTTLPR and whose parents provided excessive levels of social support c. a child who has a short allele 5-HTTLPR and whose parents provided low levels of social support d. a child who has a short allele 5-HTTLPR and whose parents provided excessive levels of social support
When Sperling visually displayed three rows of three letters each for only 1/20th of a second, experimental participants:
a. appeared to have a momentary photographic memory of all the letters in the display b. recalled about seven letters, due to the limits of short-term memory c. recalled the letters in the first and last rows, but not the letters in the middle row d. recalled very few letters, because they didn't have enough time to see them all