Stimulating responsible conduct of research is considered important within universities and research organizations. In this contribution, we investigated if there are gender differences regarding three aspects: students' attitudes towards integrity related issues, self-reported misconduct, and suspicions of misconduct and willingness to report fellow students. A questionnaire was sent to 1266 first year starting master students in the life sciences. Male students were significantly more likely to report not doing their fair share in group work and putting their name on work without checking it. No significant differences were found regarding attitude and suspecting and reporting other students.