This study examined the factors adapted from the Motivation for Reading Questionnaire. We considered eight dimensions (Self-Efficacy, Reading Challenge, Reading Curiosity, Reading Involvement, Importance of Reading, Recognition for Reading, Reading for Grades, and Social Reasons for Reading). In addition, we included some items based on the extensive reading, principles, and technology acceptance model. The study recruited 558 undergraduate students of English as a foreign language in Indonesia via Google Forms. The structure of the questionnaire was validated using exploratory and confirmatory factor analyses. To determine the dependability of the instrument, internal consistency reliabilities of the instrument as a whole and per factor were calculated. We computed the average variance extracted and the Heterotrait-Monotrait Ratio of Correlation to determine convergent and discriminant validities. The results led to the omission of six items with loading values < 0.50. The omissions included one item for Reading Involvement (0.42) and five items for Social Reasons for Reading (0.47; 0.43; n/s.; n/s.; and n/s.). Lastly, the study presented the significance of the results and directions for future studies.