Psychologist: We asked 100 entrepreneurs and 100 business managers to answer various questions and rate how confident they were that their responses were correct. While members of each group were overconfident, in general the entrepreneurs were much more so than the business managers. This indicates that people who are especially overconfident are more likely to attempt to start a business in spite of the enormous odds against success than people who are less confident.
Which one of the following, if true, lends the most support to the psychologist’s conclusion?
Conclusion - People who are overconfident are more likely to attempt to start a business.
Premise - Entrepreneurs were overconfident to believe that they were right compared to business managers.
Reasoning - If people are overconfident then they are more likely to take a risk despite enormous odds. So, this shows causality.
Pre-thinking - What if there is other reason for the aptitude of risk in entrepreneur? Other factor
What if they are entrepreneurs and therefore more overconfident? Reverse causality
ACE
(A) The questions asked of the entrepreneurs and business managers included personal, political, and business questions. - Out of scope
(B) At least some of the entrepreneurs surveyed had accurately determined before attempting to start their businesses what the odds were against their attempts being successful. - Even if some of the entrepreneurs had determined, it still doesnt affect our conclusion because they still had the overconfidence to start a business.
(C) Another survey showed that degree of confidence was highly correlated with success in business. - This talks about the degree of confidence one might have after starting a business. Doesnt affect the reason for starting the business.
(D) The business managers who were most overconfident were found to have attempted to start businesses in the past. - This gives another example of how business was started by other group of people because of overconfidence. This strengthens our causality.
(E) How confident each person surveyed was that his or her answers to the questions asked were correct corresponded closely to that person’s confidence in his or her business acumen. - So, confidence in business acumen -> confidence of right answers. Then argument becomes the business managers have less confidence in their business acumen than entrepreneurs. So, still the argument remains that entrepreneurs are more overconfident in their business acumen. Does this affect our conclusion that overconfidence leads to risk taking abilities. Not really.
This is a causal strengthener relationship where answers most commonly lies in these groups:-
- Example of if x, then y.
- Statements where other causes are removed for the stated effect
- Statements where reverse causality is removed.
- Statements where Data used is correct.