Location masking, or geomasking, is a practice typically undertaken by data stewards who wish to release a georeferenced data set without infringing on the privacy of those whose data are involved. With numerous opportunities to transmit our personal locations through electronic devices, individuals have the agency through masking to stem the flow of their location data or otherwise engage in obscuring their locations. Relatively little is known about the factors that influence individuals to protect their location privacy and the extent to which they do so. Joining a growing recognition of individual-level privacy efforts, this study examines the predictors of personal-level location masking and the relationships among geoprivacy-related knowledge, attitudes, and behavior. Using a probability-based sample and an open online sample from California, this study finds that in situ personal masking behavior is consistent across demographic groups. A key attitude influencing whether or not participants choose to mask location is trust in Web sites to protect their personal data. Greater knowledge about how location data are transmitted and higher concern for privacy are positively correlated with masking behavior. Key Words: geomasking, geoprivacy, obfuscation, privacy, survey.

位置屏蔽或地理屏蔽是数据管理员通常采取的一种做法，他们希望释放地理参考的数据集而不会侵犯涉及数据的人的隐私。通过电子设备传输我们的个人位置的机会很多，个人可以通过掩饰来阻止代理机构阻止其位置数据流或掩盖其位置。关于影响个人保护其位置隐私的因素及其程度的了解相对较少。随着人们对个人级别隐私工作的日益认可，这项研究研究了个人级别位置掩盖的预测因素以及与地理隐私相关的知识，态度和行为之间的关系。使用基于概率的样本和来自加利福尼亚的公开在线样本，这项研究发现，原地个人掩饰行为在不同人群之间是一致的。影响参与者是否选择隐藏位置的主要态度是对网站的信任以保护其个人数据。有关如何传输位置数据的更多知识以及对隐私的高度关注与掩盖行为正相关。关键字：地理掩蔽，地理隐私，混淆，隐私，调查。