Understanding the factors associated with vaccine scepticism is challenging because of the ‘small-pockets’ problem: The number of highly vaccine-sceptical people is low, and small subsamples such as these can be missed using traditional regression approaches. To overcome this problem, the current study (N = 5,200) used latent profile analysis to uncover six profiles, including two micro-communities of vaccine-sceptical people who have the potential to jeopardize vaccine-led herd immunity. The most vaccine-sceptical group (1.14%) was highly educated and expressed strong liberal tendencies. This group was also the most sceptical about genetically modified crops and nuclear energy, and most likely to receive news about science from the Internet. The second-most vaccine-sceptical group (3.4%) was young, poorly educated, and politically extreme (both left and right). In resolving the small-pockets problem, the current analyses also help reconcile competing theoretical perspectives about the role of education and political ideology in shaping anti-vaccination views.

中文翻译：

---

解决小额口袋问题有助于阐明教育和政治意识形态在塑造疫苗怀疑方面的作用

由于“小口袋”问题，了解与疫苗怀疑相关的因素具有挑战性：高度怀疑疫苗的人数很少，并且使用传统回归方法可能会遗漏诸如此类的小子样本。为了克服这个问题，目前的研究（N = 5,200) 使用潜在特征分析揭示了六个特征，包括两个对疫苗持怀疑态度的人的微型社区，他们有可能危及疫苗主导的群体免疫。对疫苗持怀疑态度的群体 (1.14%) 受过高等教育，并表现出强烈的自由主义倾向。这个群体也是对转基因作物和核能最怀疑的人，最有可能从互联网上收到科学新闻。对疫苗持怀疑态度的第二大群体 (3.4%) 是年轻、受教育程度低和政治极端的群体（左派和右派）。在解决小额口袋问题时，当前的分析还有助于调和关于教育和政治意识形态在塑造反疫苗观点中的作用的相互竞争的理论观点。