BOSTON (AP) — Federal investigators have found that a Harvard University psychology professor who resigned after being accused of scientific misconduct fabricated data and manipulated results in experiments.

The Boston Globe (http://b.globe.com/NRP9j3 ) reports that the findings about Marc Hauser were contained in a report by the Department of Health and Human Services Office of Research Integrity released Wednesday.

Hauser resigned last summer, ten months after a faculty investigation found him "solely responsible" for eight instances of scientific misconduct at the Ivy League school.

The federal document found six cases in which Hauser engaged in research misconduct in work supported by the National Institutes of Health. One paper was retracted and two were corrected. Other problems were found in unpublished work.

Hauser says he has fundamental differences with the findings but acknowledges he made mistakes.

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Information from: The Boston Globe, http://www.boston.com/globe