Will test-taking strategies affect the test scores of a student?

There are many studies showing that test taking strategies will raise test scores.

Research shows that teaching a curriculum aligned to state standards and using test data as feedback produces higher test scores than an instructional emphasis on memorization and test-taking skills.

There is a diminishing return on test-taking skills. In other Words, teaching test-taking skills only goes so far in improving scores. Test taking skills for standardized tests may allow a student to narrow down the probable correct answers to two or three. This means that a student will score something less than 50% if relying solely on test taking skills.

So, the most effective method to raise test scores is to teach the student substantive information.