Problem solving has never enjoyed the popularity of other tasks because experimental psychologists consider it to be:
A) difficult to maintain experimental control
B) an ambiguous task
C) not a serious topic
D) all of the above
E) none of the above
D
Psychology
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______ was the researcher who first recommended an ecological-systems approach to developmental study
Fill in the blank with correct word
Psychology
Researchers have found that about ______ as many people improve with professional therapy than without it
a. half c. twice b. two-thirds d. three-quarters
Psychology