Dilanka,
Yes. You can go back and change every answer to every question that you select on The PMP Exam. However... I DO NOT SUGGEST that you do this! This is because every time you change your answer, you are probably changing it from "correct" to "incorrect". Most people agree on this. Here are a three statements that support this, that I've collected over the years from various sources:
-
www.testtakingtips.com
: Don't keep on changing your answer; usually your first choice is the right one, unless you misread the question
-
www.studygs.net
: Only change your first answers when you are sure of the correction, or other clues in the test cue you to change.
- University of Nebraska: Change an answer only for a very good reason. Usually your first answer is best.
So in other words: Your "gut" instinct and first choice is usually correct and you should not change it. If you finish the exam "early" then click "end exam" and don't second guess yourself!