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AA228/CS238 Decision Making under Uncertainty

Quiz Policy

Please read the entire new quiz policy carefully, as the procedure has changed for Fall 2026.

This year, quizzes will be held in person, during lecture time, on the following dates: 

  • Quiz 1: Oct. 15, 9:00AM – 10:20AM PT, Location: To be announced on Ed
  • Quiz 2: Oct. 29, 9:00AM – 10:20AM PT, Location: To be announced on Ed

If a documented conflict prevents you from attending a scheduled quiz, you must email your request to the head CA (Michelle Ho –mtho@stanford.edu) with the reason for missing the quiz, by October 5 for either quiz. You will be granted permission to take the quiz in-person at the alternate evening time (Oct. 15, 7-8:20PM for Quiz 1 or Oct. 29, 7-8:20PM for Quiz 2). 

Note – the quiz will be 60 minutes long, but we provide this time estimate in case of unexpected delays in handing out and collecting the quizzes.

Quiz Rules: 

  • You will be allowed a basic, non-programmable calculator and both sides of one 8.5” x 11” sheet of paper to make a cheat sheet that you may bring to the quiz. You will not be allowed to access any other external resources or LLMS, or speak to any other students during the quiz. 
  • Your testing location will be assigned for ranges of student ID numbers, announced on Ed, and posted here.
  • A CA will be nearby in case of emergency during the in-person quiz period. 
  • Late arrivals will not receive additional time; quizzes must be submitted when the period ends.
  • OAE students will report to a different location TBA. Reminder that all students requiring OAE accommodations must email head CA Michelle Ho (mtho@stanford.edu) with their OAE letter by EOD October 2. 
  • To ensure fairness to CGOE students, Ed will not be available for public posts for 1 hour before or 72 hours after the in-person quiz-taking period. 

For CGOE students:

  • It will be your responsibility to coordinate with CGOE to schedule an in-person testing center with an exam monitor. The quiz will be sent directly to the center, which they will administer to you, and they will then return the quiz to us for grading. 
    • If you would like to come in person for either or both exams, please email head CA Michelle Ho (mtho@stanford.edu) before October 5. Permission will be granted subject to availability of lecture hall space.
  • Quiz 1 must be scheduled between October 15, 9AM and October 18, 9AM. 
  • Quiz 2 must be scheduled between October 29, 9AM and November 1, 9AM. 

For any further CGOE quiz-scheduling questions, please reach out to your CGOE contact. 

Quiz Reflections

The purpose of this policy is not solely to improve your scores but to enhance your understanding of the course material. Learning from your mistakes is an essential part of the educational journey. To encourage this process and help deepen your understanding of the course material, we are planning a trial run of a policy that allows students to reflect on their quizzes and earn up to half of the missed points back. This policy was inspired and adapted from a similar policy in CS161.

Opportunity: If you score below 70% on a quiz, you have the opportunity to write a reflection on the problems you missed. The adjusted score will be your original score plus up to half of the total points you missed, with a maximum adjusted score of 70%. You may earn back points for the missed questions you reflect on. To be eligible for the full amount of available points, your reflection must address all questions you missed.

Reflection Guidelines: Your reflection should be in PDF format and include the following:

  • Your original answer to the question
  • The number of points you originally earned for that question (e.g. 3 / 5)
  • The rubric item(s) for that question as specified on Gradescope (e.g. “Right answer but significant error in explanation”)
  • If applicable, any additional point adjustments or rubric items.
  • A detailed explanation of your mistake, including any incorrect assumptions or incomplete solutions.

When writing your reflection, dedicate a significant portion to explaining, in detail, where you went wrong in your original response. Identify the specific mistake or errors in your original answer. Go beyond surface-level identification and delve into the root cause of your mistake. Ask yourself why you made this error. Did you misinterpret the question? Did you overlook a critical piece of information? If your mistake was due to assumptions or misconceptions, explicitly state what these assumptions or misconceptions were. If your original response was incomplete, explain what critical steps or components you omitted. Walk through the problem step-by-step and clarify where you should have elaborated further.

Deadline: You must submit your reflection by the specified deadline, which we will announce on Ed. Details on the submission process will be provided shortly after the first quiz.

Notification: The adjusted points will be updated in Gradescope.

If you have any questions or need further clarification regarding this policy, please don’t hesitate to reach out to the teaching team.