Consider your mood. If you're distracted when taking an IQ test, your score may be affected. You also tend to test poorly when you're hungry or tired. Get a good night's sleep and eat something prior to taking the test.
Watch your diet and exercise regularly. Studies show that people who eat foods that are rich with vitamins and minerals test better on IQ exams. If you exercise regularly, you are likely to score higher as well.
Limit your TV time. Too much time in front of the TV causes brain drain. Only watch small amounts of TV each day. Pick up a book to read instead.
Play word games and puzzles. Any type of brain teaser game can help you score better on an IQ test. If you enjoy playing video games, check out "Brain Age" for Nintendo DS and Wii.
Take a free IQ test online. Practice with a few sample IQ tests available online. The website Learn Your IQ offers free IQ tests with detailed scoring information.