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Repressors-people who unconsciously inhibit their display of emotion - exhibit significant increases in heart rate when they encounter emotion-provoking situations. Nonrepressors have similar physiogical responses when they encounter such situations and consciously inhibit their display of emotion. Thus the very act of inhibiting displays of emotions, whether done consciously or unconsciously, causes a sharp rise in heart rate.
Which one of the following is an assumption required by the argument?
A. Encountering an emotion provoking situation is not sufficient to cause nonrepressors' heart rates to rise sharply.
B. Non-repressors can inhibit facial and bodily displays of emotion as well as repressors do.
C. Despite their outward calm, repressors normally feel even more excited than do non-repressors in an emotion provoking situation.
D. People who are ordinarily very emotional can refrain from feeling strong emotions when experiments ask them to do so.
E. In situations that do not tend to provoke emotions, the average heart rate of repressors is the same as that of non-repressors.
Attachment:
repressors.png
The assumption required by the argument is
A: Encountering an emotion-provoking situation is not sufficient to cause non repressors' heart rates to rise sharply.
Explanation: The argument concludes that the act of inhibiting emotions (either consciously or unconsciously) causes a sharp rise in heart rate. If encountering an emotion-provoking situation automatically caused a rise in heart rate for non repressors, then the conscious inhibition of emotion wouldn't be necessary for the increased heart rate to occur.
Why other options are incorrect:
B. Non-repressors can inhibit facial and bodily displays of emotion as well as repressors do.
This statement is not relevant to the argument. The argument focuses on the effect of inhibition on heart rate, not the ability to inhibit.
C. Despite their outward calm, repressors normally feel even more excited than do non-repressors in an emotion-provoking situation.
This statement is about feelings, not about the act of inhibition and its effect on heart rate, which is the core of the argument. The argument is about the physiological response to inhibition, not the subjective emotional experience.
D. People who are ordinarily very emotional can refrain from feeling strong emotions when experiments ask them to do so.
This statement is about refraining from feeling, not about inhibiting the display of emotions, which is what the argument is concerned with.
E. In situations that do not tend to provoke emotions, the average heart rate of repressors is the same as that of non-repressors.
This statement is irrelevant. The argument focuses on emotion-provoking situations and their effect on heart rate when emotions are inhibited.
Key points about causal arguments: Causal arguments are those where one event is claimed to cause another.
To strengthen a causal argument, one needs to show that the claimed cause is necessary for the effect.
If an alternative explanation exists that doesn't involve the claimed cause, it weakens the argument.
Source: AI Overview