Psychology Psychologist Jean Twenge, the author of the 2006 book Generation Me, considers millennials, along with younger members of Generation X, to be part of what she calls "Generation Me". Twenge attributes millennials with the traits of confidence and tolerance, but also describes a sense of entitlement and narcissism, based on NPI surveys showing increased narcissism among millennials compared to preceding generations when they were teens and in their twenties. Psychologist Jeffrey Arnett of Clark University, Worcester has criticized Twenge's research on narcissism among millennials, stating "I think she is vastly misinterpreting or over-interpreting the data, and I think it's destructive". He doubts that the Narcissistic Personality Inventory really measures narcissism at all. Arnett says that not only are millennials less narcissistic, they're "an exceptionally generous generation that holds great promise for improving the world". A study published in 2017 in the journal Psychological Science found a small decline in narcissism among young people since the 1990s.
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