A researcher who is studying methods of decreasing test anxiety decides to measure anxiety in a group of volunteers both before and after an experimental intervention. He finds that anxiety levels are lower after the intervention. However, when reviewing his results, the researcher notes that the first test occurred about a week before midterm exams and the second test occurred two weeks after
the exams. This study appears to have a problem with ____.
a. internal validity
b. external validity
c. reliability
d. accuracy
a
Psychology
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Psychology is defined as the:
a) scientific study of behaviors and mental process b) science of behavior and not mental processes c) study of mental processes and not behavior d) study of mental disorders and their treatment
Psychology
At between 2 and 3 years of age children begin using three to four word sentences that contain only the words needed to communicate their meaning. These sentences are called __________
a) telegraphic speech. b) holophrases. c) underextensions. d) syntactic deficits.
Psychology