When conducting a hand calculation of the Pearson product moment correlation coefficient, how many columns of numbers are needed?
a. two c. four
b. three d. five
D
The columns are needed for the X scores, the Y scores, the squared X scores, the squared Y scores, and the XY scores.
You might also like to view...
A person who demonstrates reduced sensitivity to stimuli in the band of fibers enervating the hindbrain termed the _____ might be more likely to be _____.
A) reticular formation; anxious B) reticular formation; outgoing C) corpus callosum; altruistic D) corpus callosum; neurotic
Julie finds that the number of hours she sleeps each night is related to the scores she receives on quizzes the next day. As her sleep approaches 8 hours, her quiz scores improve; as her sleep drops to 5 hours, her quiz scores show a similar decline
Julie realizes that __________ a) there is a negative correlation between the number of hours she sleeps and her quiz grades. b) there is a positive correlation between the number of hours she sleeps and her quiz grades. c) her low quiz scores are caused by sleep deprivation the night before a quiz. d) she should sleep about 10 hours a night to ensure 100 percent quiz grades.
Edward Tolman's work on latent learning shows that
A. most animals learn through classical and not operant conditioning. B. punishments are more effective than reinforcements at modifying behavior. C. continuous reinforcement is less effective compared to intermittent reinforcement. D. prior experience-whether reinforced or not-aids future learning.
Quentin is seeking medication to treat his panic disorder. Due to Quentin's history of substance abuse, his doctor hesitates
After some consideration, the doctor is most likely to write Quentin a prescription for a ________, confident that abuse won't be an issue. a. SSRI b. tricyclic c. monamine oxidase inhibitor d. benzodiazepine