Can one bad apple really spoil the bunch? The science and sociology explained
                                
                                
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                                    4 min read                                
                            
                                In a 2006 study, researchers found that introducing just one bad apple into a group could decrease team performance by up to 40%. The adage, which dates back centuries, suggests that a single toxic element can ruin an entire collective, but is this just an old wives' tale or is there real science and sociology to back it up?