Two great ways to study for a reading test are to take a practice reading comprehension test online and to work on expanding your vocabulary. Practice tests that are specifically designed for some major tests, such as the SAT and ACT, can be found online.
Reading comprehension tests are based on the reader's ability to properly interpret information from a series of short articles. Each article is accompanied by a few questions, with the catch being that the answer in the article is usually phrased slightly differently than the actual multiple choice answer. Some of the answers require the use of context clues to determine the meaning of words. This makes it crucial to carefully read the articles and pay close attention to the details.