Food psychologist Brian Wansink has submitted his resignation to Cornell University in Ithaca, New York, and will retire at the end of the academic year, according to a 20 September statement from the university.

The move comes as Cornell announced the findings of its internal investigation that concluded that Wansink had committed academic misconduct.

Wansink, who is known for his research on how environmental factors such as packaging influence what people eat, has not responded to Nature ’s request for comment.

In its statement, Cornell said that its year-long investigation determined that Wansink had misreported research data, used “problematic” statistical techniques and failed to properly document his results.

On 19 September, the Journal of the American Medical Association retracted 6 of Wansink’s papers, bringing the total number of studies the researcher has had retracted to 13.

The university says that Wansink has been removed from teaching and research responsibilities and will spend the remainder of the academic year cooperating with Cornell's ongoing review of his work.