Research indicates that it might be possible to change personality traits through intervention, but this clinical research has primarily focused on changing neuroticism. To date, there are no established, proven techniques for changing other domains of personality, such as conscientiousness and openness. This research examined the effects of a two‐week smartphone‐based intervention to either change one facet of conscientiousness (i.e. self‐discipline) or one facet of openness to experience (i.e. openness to action). Two intervention studies (total N = 255) with two active intervention groups for mutual comparisons were conducted. Results of self‐reports and observer reports showed that people who wanted to become more self‐disciplined were less self‐disciplined at pretest. Similarly, people who wanted to become more open to action were less open to action at pretest. The results showed that people who chose the self‐discipline intervention showed greater increases in self‐discipline, and people who chose the openness to action intervention showed greater increases in openness to action compared with the other group. Changes were maintained until follow‐up two and six weeks after the end of the intervention. Future work is needed to examine whether these personality changes are enduring or reflect temporary accentuation as a result of participation in the intervention. © 2020 European Association of Personality Psychology

中文翻译：

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变得更自觉或更开放地体验？基于智能手机的两周干预对人格改变的影响

研究表明，通过干预可能会改变人格特质，但这项临床研究主要集中于改变神经质。迄今为止，还没有成熟，成熟的技术可以改变人格的其他领域，例如尽责和开放。这项研究检查了为期两周的基于智能手机的干预措施对改变责任心（即自律）或对体验开放（即对行动开放）的一个方面的影响。两项干预研究（总N = 255），并进行了两个积极的干预组进行相互比较。自我报告和观察者报告的结果表明，想要变得更加自律的人在预测试中的自律性较低。同样，想要变得更加开放的人在预测试时也不太开放。结果表明，与其他群体相比，选择自律干预的人自我约束的增长更大，而选择采取行动开放性干预的人们则表现出更大的行动开放性。改变一直保持到干预结束后的两周和六周。需要进一步的工作来检查这些人格变化是否持久或反映出由于参与干预而暂时性的加重。