Question

A cognitive psychologist has devised a new paradigm to assess empathy in humans by exposing them to images of other humans in pain and seeing whether this evokes an emotional response in the participants. Among the various aspects of an emotional response is a physiological response, such as variations in normal resting heartrate. It would lend validity to the psychologist's paradigm if exposure to these painful images causes changes in an individual's normal heartrate. As such, the psychologist selects a random sample of n - 10 male undergraduate Psychology students from an overall pool of eligible students. Each participant is exposed to a painful image for 5 seconds and their heartrate in beats per minute (BPM) is recorded immediately after. The psychologist reports that the average Heartrate (BPM) of the sample was M-90 beats per minute. Suppose is known that the normal resting heartrate of this population is u = 70 beats per minute. The distribution of beats per minute is normal with a standard deviation of o = 20. Based on the above information, select True or False: True False: Exposure to the Painful Image is the independent variable in this data set. True False QUESTION 2 A cognitive psychologist has devised a new paradigm to assess empathy in humans by exposing them to images of other humans in pain and seeing whether this evokes an emotional response in the participants. Among the various aspects of an emotional response is a physiological response, such as variations in normal resting heartrate. It would lend validity to the psychologist's paradigm if exposure to these painful images causes changes in an individual's normal heartrate. As such, the psychologist selects a random sample of n = 10 male undergraduate Psychology students from an overall pool of eligible students. Each participant is exposed to a painful image for 5 seconds and their heartrate in beats per minute (BPM) is recorded immediately after. The psychologist reports that the average Heartrate (BPM) of the sample was M = 90 beats per minute. Suppose is known that the normal resting heartrate of this population is u = 70 beats per minute. The distribution of beats per minute is normal with a standard deviation of a = 20 Based on the above information, select True or False True/False: The Heartrate (BPM) is the dependent variable in this data set. True False

Answer 1