PhD students trained in small research groups are more likely to remain in academia than those from larger labs, according to a comprehensive analysis published in Nature Human Behaviour.

The study, which examined 1.5 million scientists and 1.8 million mentorships across chemistry, physics and neuroscience, found that trainees from large research groups had 38-48% lower "survival rates" in academia between the 1980s and 1995 compared to their small-group counterparts.

However, researchers from larger labs who do stay in academia tend to achieve greater career success, publishing papers with higher citation rates and more frequently ranking among the most-cited scientists.

The research team, led by social-data scientist Roberta Sinatra from the University of Copenhagen, discovered that successful large-group scientists typically published more first-author papers with their mentors as last authors, suggesting they received substantial attention despite the group size.

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