In a series of studies, when older adults were assigned to theater-arts training, singing lessons, or no-intervention control groups, __________

A) theater-training participants showed greater gains on tests of working-memory capacity
B) there were no discernable differences in scores on tests of instrumental activities of daily living
C) singing-lesson participants showed greater gains on tests of word and prose recall and verbal fluency
D) theater-training participants showed smaller gains than singing-lesson participants in problem solving


Answer: A

Psychology

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Answer the following statement(s) true (T) or false (F)

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Psychology