“…While other research from non-historical domains shows that it is possible for the crowd to learn a few microtasks in a short amount of time (e.g., < 30 minutes in total) (Dow, Kulkarni, Klemmer, & Hartmann, 2012;Lee, Lo, Kim, & Paulos, 2016;Zhu, Dow, Kraut, & Kittur, 2014), we did not observe this in our study of reading comprehension techniques. The wide adoption of long-term apprenticeship in historical research may help explain why we have different results (Law et al, 2017).…”