Gender, writing and ranking in review forums: a case study of the IMDb

• Published in: Knowledge and information systems 2013-06, Vol.35 (3), p.645-664
• Main Author: Otterbacher, Jahna
• Format: Article
• Language: English
• Subjects: Analysis; Applied sciences; Bias; Biological and medical sciences; Case studies; Collaboration; Communication; Computer Science; Computer science; control theory; systems; Computer systems and distributed systems. User interface; Consumers; Correlation; Data Mining and Knowledge Discovery; Data processing. List processing. Character string processing; Database Management; Demographics; Displays; Exact sciences and technology; Filtering; Filtration; Fundamental and applied biological sciences. Psychology; Gender; Gender differences; Information Storage and Retrieval; Information systems; Information Systems and Communication Service; Information Systems Applications (incl.Internet); Information systems. Data bases; Internet; IT in Business; Memory organisation. Data processing; Men; Motion pictures; Psychology. Psychoanalysis. Psychiatry; Psychology. Psychophysiology; Regular Paper; Social interactions. Communication. Group processes; Social networks; Social psychology; Software; Studies; Utilities; Virtual communities; Women; Writing
• ISSN: 0219-1377; 0219-3116
• DOI: 10.1007/s10115-012-0548-z

Online review forums provide consumers with essential information about goods and services by facilitating word-of-mouth communication. Despite that preferences are correlated to demographic characteristics, reviewer gender is not often provided on user profiles. We consider the case of the internet movie database (IMDb), where users exchange views on movies. Like many forums, IMDb employs collaborative filtering such that by default, reviews are ranked by perceived utility. IMDb also provides a unique gender filter that displays an equal number of reviews authored by men and women. Using logistic classification, we compare reviews with respect to writing style, content and metadata features. We find salient differences in stylistic features and content between reviews written by men and women, as predicted by sociolinguistic theory. However, utility is the best predictor of gender, with women’s reviews perceived as being much less useful than those written by men. While we cannot observe who votes at IMDb, we do find that highly rated female-authored reviews exhibit “male” characteristics. Our results have implications for which contributions are likely to be seen, and to what extent participants get a balanced view as to “what others think” about an item.