Read the EVALUATING SOURCES paragraph and fill in the blanks. All researchers, students as well as professional scholars, need to assess the quality of anywork scrupulously before using and citing it. Students writing their first research papers often find it difficult to evaluate sources. Not all sources are equally reliable or of equal quality. In reading and evaluating potential sources, you should not assume that something is truthful or trustworthy just because it ap­pears in print or is on the Internet. Some material may be based on incorrect or outdated information or on poor logic, and the author's knowledge or view of the subject may be biased or too limited. Weigh what you read against your own knowledge and intelligenceas well as against other treatments of the subject. Focus particularly on the (1) ______, (2) ______, and (3) ______ of the sources you use. Following are some criteria to keep in mind when you evaluate sources. If you have doubts about asource, your instructor or a librarian can prob­ably help you.