Young Matthew is playing with his mother. She has his favorite stuffed animal, and she suddenly hides it under his blanket. Instead of looking for it under the blanket, Matthew starts to cry a little, since he thinks his toy is gone. Matthew's tears suggest that he has not yet developed
a. conservation
b. reversibility.
c. transitory properties.
d. object permanence.
d
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Yerkes believed that immigration ____.
a. was important to the vitality of the United States. b. introduced new genes and couple build intelligence and creativity. c. was morally imperative that all persons who wanted entry to the United States be allowed entry. d. should be restricted so those with low intelligence could be refused.
Poor decisions that adolescents make on social networks have been shown by research to include all of the following negative consequences except
a. having charges brought against them for child pornography resulting from sexting. b. being targets of adult predators. c. becoming friends with others whom they would not meet in any other way. d. finding that potential employers will not hire them based on a review their social networking sites
Along with cirrhosis of the liver, alcohol's principal threat to health is its likelihood of causing
A) ?lung cancer. B) ?heart disease. C) ?unintentional injuries. D) ?chronic obstructive pulmonary disease.
Statistical tests require both a(n) _____ and a(n) _____ hypothesis
a. null; alternative b. primary; secondary c. empirical; theoretical d. conceptual; testable