In recent years, marijuana use on U.S. college campuses reached the highest point while the perceptions of risk and social disapproval registered the lowest since the early 1980s. However, little attention has been paid to the sources of the marijuana-related messages and their relationships with marijuana knowledge and confidence in knowledge, proximate protective/risk factors. To fill this gap, a convenience sample of students (N = 249) on a campus located in a U.S. recreational marijuana legal state were surveyed to identify their marijuana information sources and explore the relationships among the sources, confidence in marijuana knowledge, and objective knowledge. Peers/media were the most important sources and they were used more than other sources. Use of peers/media sources was related to lower health knowledge and higher confidence in knowledge. Although students named parents and education/science sources as important, these were less frequently used than siblings, the sources they named as the least important. This study advanced our understanding of the various sources of marijuana information used by U.S. college students and the relationships between the information sources and confidence in knowledge and objective knowledge, two emerging risk/protective factors in the era of marijuana deregulation.

近年来，美国大学校园的大麻使用达到了最高点，而风险认知和社会反对程度则是 1980 年代初以来的最低点。然而，很少有人关注大麻相关信息的来源及其与大麻知识和知识信心的关系，以及相关的保护/风险因素。为了填补这一空白，我们提供了一个方便的学生样本（N= 249) 在位于美国休闲大麻合法州的校园内进行了调查，以确定他们的大麻信息来源，并探索来源之间的关系、对大麻知识的信心和客观知识。同行/媒体是最重要的来源，它们比其他来源使用得更多。使用同伴/媒体资源与较低的健康知识和较高的知识信心有关。尽管学生认为父母和教育/科学资源很重要，但与兄弟姐妹相比，这些资源的使用频率较低，他们认为这些资源最不重要。这项研究增进了我们对美国大学生使用的大麻信息的各种来源以及信息来源与知识和客观知识的信心之间的关系的理解，