Frequently, a person will read a question and have no idea of the answer. Then, maybe even 20 questions later, that person will suddenly know the answer to this earlier question. If this happens to you, write the answer down immediately. If you don't, the light may go off, and the answer may not return. In answering each question, read the entire question including all answer options carefully.
Many mistakes occur because people read questions too quickly.
They may read information that is not there or miss words that change the meaning of the question. Similarly, many people read answer choices until they find one that looks right, mark that answer, and quit reading. Frequently, these people do not read the choice that is the best answer. Careful reading will assure that this will not happen. Answers left blank are most frequently marked wrong.