Another benefit of high-quality listening is that it helps speakers see both sides of an argument (what we called “attitude complexity”). In another paper we found that speakers who conversed with a good listener reported attitudes that were more complex and less extreme — in other words, not one-sided. In another lab experiment we instructed 114 undergraduates at a business school to talk for 12 minutes about their fitness to become a manager in the future. We randomly assigned these speakers to one of three listening groups (good, moderate, and poor). Speakers in the good listening condition talked to a trained listener, who was either a certified management coach or a trained social-work student. We asked these trained listeners to use all their listening skills, such as asking questions and reflecting. Speakers in the moderate listening condition talked to another undergraduate at the business school who was instructed to listen as he or she usually does. Speakers in the poor listening condition talked with a student from the theatre department who was instructed to act distracted (e.g., by looking aside and playing with their smartphones). After the conversation, we asked the speakers to indicate separately the extent to which they thought they were suitable for becoming managers. Based on these answers, we calculated their attitude complexity (whether they saw both strengths and weaknesses that would affect their ability to be a manager) and extremity (whether they saw only one side). We found that speakers who talked to a good listener saw both strengths and weaknesses more than those in the other conditions. Speakers who talked to a distracted listener mostly described their strengths and barely acknowledged their weaknesses. Interestingly, the speakers in the poor listening condition were those that, on average, reported feeling the most suitable for becoming a manager. - hbr.org