eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-03-31 13 1 407 416 10.13005/bbra/2048 7370 article Hoda Shaker 1,2 Mohammad Reza Farhadpoor 3 Fariba Nazari 3 Expert of Scientometrics, Vice-Chancellor of Development of Research and Technology, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Information Science and Knowledge, Ahvaz Branch, Islamic Azad University of Ahvaz, Ahvaz, Iran. Department, Faculty of Literature and Humanity, Ahvaz Branch, Islamic Azad University of Ahvaz, Ahvaz, Iran. This research is aimed at studying the relationship between perceived usefulness and satisfaction with query reformulation tools in Science Direct Data Base. A descriptive analytic method was used to study the relationship between variables; the data were collected using a researcher-made questionnaire. The samples were selected from among Students of Information Science in Islamic Azad University of Research and Science Center of Khuzestan who had the seminarCourse (n = 28). The findings showed that users main reason for query reformulation was not having enough time to investigate all retrieved results (Mean = 4.66). They also showed that based on perceived satisfaction and perceived usefulness, users used the query tools which bounded them to the topic (Mean = 3.92 for usefulness and M =3.83 for satisfaction). In addition, Pearson’s correlation co-efficiency (r = 0.939) at (0.000) significance level showed that users perceived usefulness from query reformulation tools increased satisfaction. https://www.biotech-asia.org/vol13no1/a-study-on-the-relationship-between-perceived-usefulness-and-satisfaction-with-query-reformulation-tools/ Query Reformulation; Search Usefulness; Search Satisfaction; Search Assessments