Background: Dementia is one of the most common diseases of aging and leads to an increased need for care. Caregivers' attitudes about aggression can influence their interaction with people with dementia. To examine this further, “The Management of Aggression in People with Dementia Attitude Questionnaire” (MAPDAQ) was developed for use in nursing homes in the United Kingdom. In Switzerland, the MAPDAQ has been translated into a German Version (MAPDAQ-G), but not yet tested for its validity and reliability., Aim: Therefore the present study examined the content and face validity, comprehensibility and interpretability of MAPDAQ-G in a Swiss context., Methods: The review was based on expert surveys and interviews with caregivers in nursing homes and psychiatric hospitals., Results: According to experts, the optimised MAPDAQ-G is comprehensive (88 %) and shows good content validity (I-CVI = 0,6 – 0,1; S-CVI-Ave = 0,88). 15 items have been adapted and further validated by 16 nurses. Finally, apart from two items, the MAPDAQ-G is understood by nurses and can be interpreted consistently., Conclusions: A questionnaire of this sort allows nurses to reflect in practice upon their own attitude with regard to the management of aggression in people with dementia and to influence the quality of care. The MAPDAQ-G should be statistically tested for validity and reliability using a larger sample.