Donnellan completed his undergraduate career at the University of California, Davis in 1994, receiving his bachelor's degree in psychology.
[5][6] On the other side of the spectrum, individuals with low self-esteem suffer from poorer mental and physical health, including depressive symptoms and health problems; experience worse economic prospects, occasionally illustrate antisocial behavior and tend to exhibit higher levels of criminal behavior during adolescence.
[5][6] The research that Donnellan and his colleagues have done points to various macro factors in determining the correlation between low self-esteem and externalizing problems in a negative aspect.
One suggestion is that low self-esteem weakens ties to society, thus decreasing conformity to social norms and increasing delinquency.
Subsequently, there is also a parental support component that researchers have briefly looked at as a starting point for future instances of low self-esteem.