You may be using the IES in a pre-/post- capacity. This means that you will take the survey once, receive your report, and then retake the survey at a later date to determine the difference in your scores.
Your use of the IES will be very similar to the instructions outlined in Accessing the IES, Taking the IES, Purchasing a seat, and Accessing your report. After a certain period of time, your survey administrator will initiate the second use of the IES. You will take the survey again and will receive a new report. The report will now display your scores from each time you have taken the IES. Your current scores will appear on the first results page, and your previous scores will appear on the following page.