1. The act of watching or monitoring something without actively participating, intervening, or influencing the outcome
The researcher conducted passive observation of the children's behavior without interfering in their play.
O pesquisador conduziu observação passiva do comportamento das crianças sem interferir na brincadeira delas.
2. A research or surveillance method in which the observer remains uninvolved and non-participatory
Through passive observation, the anthropologist documented the daily rituals of the community.
Por meio da observação passiva, o antropólogo documentou os rituais diários da comunidade.