Joshua Jackson

Assistant Professor of Psychology


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Jackson studies the development and assessment of personality. His current research focuses on identifying the antecedents – such as genetic and environmental factors – that are responsible for changes in personality, with a particular focus on educational experiences. His work also examines the ways in which different assessment methods can influence how personality development is estimated. For example, some of his current studies examine the overlap and discrepancies between different modalities of personality assessment (e.g., self-reports, observer-reports, behavioral and physiological measures) across the lifespan.


Military service changes personality, makes vets less agreeable

It’s no secret that battlefield trauma can leave veterans with deep emotional scars that impact their ability to function in civilian life. But new research from Washington University in St. Louis suggests that military service, even without combat, has a subtle lingering effect on a man’s personality, making it potentially more difficult for veterans to get along with friends, family and co-workers.