Lay readers' trust in scientific texts can be shaped by perceived text easiness and scientificness. The two effects seem vital in a time of rapid science information sharing, yet have so far only been examined separately. A preregistered online study was conducted to assess them jointly, to probe for author and text trustworthiness overlap, and to investigate interindividual influences on the effects. N = 1467 lay readers read four short research summaries, with easiness and scientificness (high vs low) being experimentally varied. A more scientific writing style led to higher perceived author and text trustworthiness. Higher personal justification belief, lower justification by multiple-sources belief, and lower need for cognitive closure attenuated the influence of scientificness on trustworthiness. However, text easiness showed no influence on trustworthiness and no interaction with text scientificness. Implications for future studies and suggestions for enhancing the perceived trustworthiness of research summaries are discussed.

中文翻译：

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通俗易懂的研究摘要中的可信度指标：科学性胜于简单性。

外行读者对科学文本的信任可以通过感知文本的简单性和科学性来塑造。在科学信息快速共享的时代，这两种效应似乎至关重要，但迄今为止只是分别进行了检验。进行了一项预先注册的在线研究以联合评估它们，探讨作者和文本可信度重叠，并调查个体间对效果的影响。N = 1467 名外行读者阅读了四份简短的研究摘要，其易用性和科学性（高与低）因实验而异。更科学的写作风格导致更高的作者和文本可信度。较高的个人辩护信念、较低的多源信念辩护和较低的认知封闭需求削弱了科学性对可信度的影响。然而，文本易用性对可信度没有影响，并且与文本科学性没有交互作用。讨论了对未来研究的影响和提高研究摘要可信度的建议。