psephology
noun [ U ] politics specialized uk/sɪˈfɒl.ə.dʒi/ us/sɪˈfɑː.lə.dʒi/
（研究选举和投票统计的）选举学
the study of elections and voting statistics (= numbers)
Students of psephology will recall that the opinion polls before the 1992 election were inaccurate. 选举学的学生们会记得，1992年大选前的民意调查是不准确的。