During the last few decades, reading skills have been the focus of considerable research in the field of testing English as a foreign/second language (e.g., Barati, 2003, Aldersoll 2000, Urqlthart and Weir 1998). It was initially thought if general reading ability could be decomposed into skills, it could be taught and tested more effectively. It has, however, been argued that reading skills may not be tested by particular test items (Alderson, 1990). Unlike most previous studies trying to uncover the skills of a test already in use, this study investigated the latent patterns underlying reading skills, using a test developed exclusively for the purpose of this project. Some 272 male and female university students majoring in English literature and translation took a 43-item, multiple-choice reading comprehension test, concurrently with the academic reading section of IELTS. To discover the possible latent underlying traits, factor analysis was conducted on the data. The final analysis showed that a 9-factor solution and an 8- factor solution were the best explanations of the factor patterns. It can be concluded that the reading ability might consist of eight or nine major distinguishable and testable skills or probably more. Implications of the findings for test content, and for teaching, are considered.