A Kings Park High School senior's psychology project about teenage girls' self-harming behaviors earned her a victory in a local competition.

Jill Glazer, 18, won best-in-category in one of the interdisciplinary psychology divisions of the 2013-14 Long Island High School Psychology Fair at Roslyn High School. Her project studied five sub-personality traits of conscientiousness and their link to self-mutilation in adolescent girls.

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"I think it's an extremely important thing to look at," Glazer said. Of her findings, she said, "The less-conscientious girls are more likely to self-harm. Originally, I went in thinking it would be the total opposite."

She was the only Suffolk County student to win best-in-category among the psychology fair's six divisions.

Glazer became interested in the topic as a result of her internship last year with the Adolescent Development of Emotion and Personality Traits Project at Stony Brook University. The study, organized by the university's Department of Psychiatry and Behavioral Science and Department of Psychology, explores the association between personality development, well-being and depression in adolescent girls.

She is considering studying psychiatry or clinical psychiatry and counseling in college.

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Glazer is president of her school's French Honor Society and editor of the literary art magazine. She is also in the National Honor Society, Science Honor Society, Theater Honor Society and Tri-M Music Honor Society.