Peterson's Master the GED: Practice Test 1-Diagnostic Test allows you to dip your toes into the GED waters by taking a Practice Diagnostic Test. Readers can use the results of this Diagnostic Test to determine where they need to focus their GED preparation. This GED Practice Test has five separate subtests: Language Arts, Writing (Parts I and II); Social Studies; Science; Language Arts, Reading; and Mathematics (Parts I and II). The easy-to-read answer key with detailed answer explanations helps test-takers figure out the most effective study plan for mastering the GED. Master the GED: Practice Test 1- Diagnostic Test is part of Master the GED 2011, which offers readers 3 full-length practice tests and in-depth subject review for each of the GED tests-Language Arts, Writing (Parts I and II); Language Arts, Reading; Social Studies (including Canadian history and government); Science; and Mathematics (Parts I and II)-as well as top test-taking tips to score high on the GED.