Citizen science has grown as a form of public engagement in science. Middle-aged citizens who are already consuming scientific information should be a potential outreach group. Behaviour change research in citizen science participation among the demographic is lacking. A total of 47 museum visitors aged 40–60 years took part in qualitative questionnaires and semi-structured interviews. Thematic analysis with the aid of theoretical domains framework and capability opportunity motivation-behaviour model revealed eight themes: (1) limited awareness of citizen science; (2) curiosity, competence and other significant characteristics and skills; (3) important beliefs about one’s capability; (4) importance of clear project purpose and impacts; (5) interest, enjoyment and incentives; (6) lasting impacts of family upbringing; (7) project details that make participation easy, better project promotion; and (8) the living environment, availability of free time and money. Addressing a maximum number of these factors with behaviour change techniques can improve the likelihood of citizen science participation.

公民科学已经成长为公众参与科学的一种形式。已经在消费科学信息的中年公民应该是一个潜在的外展群体。缺乏对人口中公民科学参与的行为改变研究。共有 47 名 40-60 岁的博物馆参观者参加了定性问卷和半结构化访谈。借助理论领域框架和能力机会动机-行为模型的主题分析揭示了八个主题：（1）公民科学意识有限；(2) 好奇心、能力和其他显着特征和技能；(3) 对自己能力的重要信念；（4）明确项目目的和影响的重要性；（五）利息、享受和激励；(6) 家庭教养的持久影响；（7）项目细节让参与变得容易，更好的项目推广；(8) 生活环境、空闲时间和金钱的可用性。用行为改变技术解决这些因素的最大数量可以提高公民科学参与的可能性。