Exam Policy

Please read all of the following carefully. We recommend reading this information at least twice, including once the day before the exam.

What do I do and where do I go when it is time to take the exam?

Please read this PrairieTest documentation. Importantly, be aware of steps 2 and 3 under “before starting an exam” which explains what you need to do with both of your devices. Do read the documentation for details, but the simple answer is:

  • Navigate to PrairieTest from your computer or laptop.
    • This is the device that you will use to access the exam via PrairieLearn. You will be directed to PrairieLearn from PrairieTest.
  • Navigate to PrairieTest from your phone or secondary device.
    • This is the device that you will use to access Zoom for proctoring. You will be directed to Zoom from PrairieTest.

Dates and Times

To take a conflict exam, you must send an email to the instructor that properly follows the email policy at least two business days before the exam. Use the following subject line:

  • [STAT 385] Conflict Exam, netID

netID should be replaced by your netID. Failure to follow this step correctly could result in not being granted a conflict.

First and foremost, conflicts will be approved for any students who are in a time zone that is significantly different than Champaign’s. Additional conflicts will be considered if there is sufficient reasoning. A desire for additional time to study is not sufficient. Conflicts with University required events such as a course labs or other exams will be approved. Please keep your emails concise and to the point. (Think three sentences or less. No need to greet me or introduce yourself.) Note that submitting a conflict request does not guarantee approval. You will receive an email with the decision (approved or denied) within one business day of submission. You may only request “Conflict Exam B” if you also have a conflict with “Conflict Exam A.”

Exam 01

Regular Exam

  • Date: Thursday, March 2
  • Time: 7:00 PM - 9:00 PM, Champaign Time

Conflict Exam A

  • Date: Friday, March 3
  • Time: 10:00 AM - 12:00 PM, Champaign Time

Conflict Exam B

  • Date: Friday, March 3
  • Time: 7:00 PM - 9:00 PM, Champaign Time

Exam 02

Regular Exam

  • Date: Thursday, April 20
  • Time: 7:00 PM - 9:00 PM, Champaign Time

Conflict Exam A

  • Date: Friday, April 21
  • Time: 10:00 AM - 12:00 PM, Champaign Time

Conflict Exam B

  • Date: Friday, April 21
  • Time: 7:00 PM - 9:00 PM, Champaign Time


The exam will be administered through PrairieLearn and proctored by the course staff via Zoom and PrairieTest.

While there is a two hour window for the exam, you will be limited to one hour and 50 minutes to complete the exam. Because of this, you are allowed to start the exam up to 10 minutes after the scheduled start time. If you are more than 10 minutes late, you run the risk of having reduced time, or being unable to take the exam at all. We suggest arriving 15 minutes early.

Please read the PrairieTest documentation for online Zoom exams! This documentation will explain the process of using PrairieTest and Zoom for the proctoring and administration of the exam.

Be sure to use the Zoom link provided via PrairieTest, which is released when the exam starts, to join the meeting. Also, be sure to sign in to Zoom via SSO using your Illinois netID and password.

If you are unfamiliar with the SSO sign-on process, please read the mobile section of this documentation: Zoom, Logging In

The exam will consist of some number of coding questions. Please do not ask for the specific number as it is not relevant. One question could take three hours. Ten questions could take 30 seconds.

Unlike quizzes, you will not have unlimited attempts at each question. Additionally, you will only ever have one variant of a question, that is, follow-up attempts will not have any random elements change. However, different students will have different randomly generated questions.

You will have five attempts for each coding question:

  • The first two attempts will grant 100% credit.
  • The remaining three attempts will grant decreasing credit: 80%, 60%, 40%

You will have three attempts for each checkbox question:

  • The first attempt will grant 100% credit.
  • The remaining two attempts will grant decreasing credit: 75%, 50%

Like quizzes, partial credit is possible by passing the various test cases. Don’t worry too much about how this interacts with the credit ranges above. Importantly know that you score can never go down.

Because of this structure, it is imperative that you self test your code in RStudio before submitting to PrairieLearn. You’ve been warned.


All relevant portions of The Student Code regarding Academic Integrity applies. In short, do not cheat. Any violation will be punished as harshly as possible.

Once the exam has started, do not post on the discussion forum about the exam until after the instructor informs the course that it is safe to do so. There may still be students who need to take the exam after you have finished your exam.

If we collect any evidence that you are communicating with anyone during the exam, we will promptly report an academic integrity violation through the FAIR system, which will notify your department and college of the infraction. In doing so, we will recommend the violation be resolved with score of zero for the exam. No exceptions.

Do not:

  • Use any form of electronic communication.
  • Have someone else in the room with you. If this is impossible, let your proctor know at the beginning of the exam and refrain from talking with other people.
  • Turn your video off on Zoom.
  • Leave the room.
  • Access prohibited sites or applications on your computer.
  • Use your phone for anything other than testing purposes.
  • Use a virtual background.


  • Navigate to PrairieTest 15 minutes before the start of the exam.
    • You will not see the Zoom link until the proctor makes it available.
  • Make sure your Zoom display name is correct. (We need to know who you are!)
  • Have your paper, writing utensils, and any other course-approved supplies you need within reach.
  • Ask the proctor any questions you have. Just wave at your camera, then use the private chat on Zoom.
  • If you enter the meeting after testing has started, use private chat on Zoom so as not to disturb others.
  • Stop working when time is called.

Exam Content

  • Exam 01 will cover all material up to and including the material on Quiz 04 and Lab 04.
  • Exam 02 will cover all material up to and including the material on Quiz 08 and Lab 08.



  • Laptop or desktop computer.
  • High-speed internet connection.
  • Phone, tablet, or other device with camera used for proctoring.


  • Secondary or external monitors if they can be visible to the proctor via Zoom.
  • Materials on the course website.
  • Materials directly linked to from the course website.
  • R and R RStudio locally installed on your computer or through RStudio Cloud.
  • R documentation accessed through R or RStudio.
  • Blank scratch paper.

Because you are using your own computer for this exam, you should be sure that your R and RStudio are setup and ready to go. In general, if you were able to complete the quizzes, your setup is ready to go. In particular, you should be use to have an up-to-date version of R installed, at least R version 4.2.2.


  • Any previous R scripts you have written.
  • Previous quizzes.
  • Any handwritten or paper notes.


If you encounter issues with R, remember this:

Many technology issues in STAT 385 can be solved by simply restarting R and RStudio.

If you feel that the correct answer is not accepted for a particular question, you must do both of the following:

  1. Submit an issue describing why your answer is correct using the “Report an error in this question” button.
  2. Submit your code to obtain your answer using the “Attach text” button on the right side of the screen. Do not attach a file, use the attach text feature.

Questions that are disputed after the exam that do not have the relevant code and issue description (properly separated) to support your claim will likely be ignored. While errors in creating the questions are certainly possible, it is generally more likely that you simply do not understand the question. It is a better strategy to simply move on to another question than to worry about a single question for a long time.

DRES Accommodations

If you have accommodations identified by the Division of Rehabilitation-Education Services (DRES) for exams, please email your Letter of Accommodations to the instructor. Assuming you did so at the start of the semester, you will be able to verify that your accommodation is already input into the PrairieTest system.