Despite a growing number of research studies using experience sampling methodologies, little is known about feasibility of these methodologies to the study of intimate partner violence (IPV). In the current study, we examine (a) participant retention and completeness in a 3-week daily diary study, (b) the discrepancy between daily dairy reports of IPV and retrospective summary reports of IPV, and (c) participant reactions to a daily diary assessment of IPV experiences. Participants were 923 undergraduate students (primarily White, heterosexual, and middle to upper-middle class) at two medium-sized universities in New England and the Midwest who received course credit for completing daily diary surveys for 3 weeks about past 24-hour IPV experiences. At the end of the survey, participants summarized their IPV experiences across the 3-week period and answered questions about their reactions to participating in the research protocol. Of the students who completed the baseline survey, 460 (49.8%) were retained until the last day and 229 (24.8%) completed all 21 days. Participants reported higher incidence and frequency of IPV in the daily diaries compared with the retrospective summary measure. On average, participants reported low levels of negative reactions to research participation (e.g., increased fear of partner) and moderate levels of positive reactions to research participation (e.g., gaining insight). IPV victimization before the study, and IPV perpetration and victimization during the daily diary period, predicted negative reactions to research participation reported at the final assessment, whereas IPV perpetration during the daily diary period predicted positive reactions. Overall, findings suggest that although retention is challenging, daily diaries studies may improve accuracy of IPV reporting, and that participants have few negative responses to daily diary methodologies inquiring about IPV.