Neurobiology of Sleep

Grades

3.94

Average grade awarded in PHYSCI CM123. Not a rating: this is what the grades were. i The mean of every letter grade the registrar has published for this course, pooled across every instructor who has taught it. Not a student rating: this is what the grades were. It is not shrunk toward anything, because a course average cannot be pulled toward itself. Standard error 0.044.

The registrar's own records: 188 grades over 4 terms, Fall 2021 to Fall 2025, summer excluded. Every instructor is pooled here. The table below splits them, and term averages across those 4 terms ran 3.83 to 3.98.

By instructor

“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.

dibs measures outcomes: grades, seats, how fast a class fills. For what a class is like to sit in, BruinWalk has the reviews.

Reviews for PHYSCI CM123 ↗

What comes first

The chain dibs can see is 6 courses long before PHYSCI CM123. This is a floor, not a deadline: dibs has not read a class page for CHEM 20B, LIFESCI 30B, MATH 3B, NEUROSC M101B, PHYSCI 111A, and PHYSCI 111B, so the real chain can only be longer than this, never shorter.

Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.

In Falls

Ran in 4 of the last 5 Falls.

From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.

From the registrar's catalog

dibs has not read the registrar's description for this course. It reads them for general education courses only, so this says nothing about the course. Any section below links out to the registrar, where the catalog text is, and that text is also where a prerequisite the structured list does not carry would be written.

Sections in Fall 2026

You enroll in the discussion, not the lecture, so a discussion's status is the one that decides whether you get in. A lecture can read open while every discussion under it is full.

Seat counts as of 02 Sep 00:40: the oldest of these 4 readings. The registrar publishes hourly and dibs reads what it can each hour, so a row can be older than that.

• Lec 1 MW 4:00pm-5:50pm

  Closed

  Colwell, C.S., Nwaobi-Petersen, S, Paul, K.N., Poe, G.R., and Ricketts, E.

  3.94

  this instructor · 188 grades

  70 of 70 · 3 over enrolled high risk i A guess about whether this will still be here at your enrollment pass, from how full it is now and how fast classes like it have filled before. Seat risk is a prediction and seat status is what the registrar said: they are two things, and this page keeps them apart.

  majors only limited by major: Physiological Science Majors: restrictions read 46 hours ago, old enough that alerts on it are held

  3 discussions, none open. There is no waitlist either, so the only way in is somebody dropping the lecture.

  This limit is on the class, so it applies to all 3 discussions below.

  › Every discussion, with its time and seats (3)

  • Dis 1A

    R 4:00pm-4:50pm · Geology Building 6704

    Closed

    24 of 24 · 2 over enrolled

  • Dis 1B

    R 5:00pm-5:50pm · Geology Building 6704

    Closed

    23 of 23 enrolled

  • Dis 1C

    R 6:00pm-6:50pm · Geology Building 6704

    Closed

    23 of 23 · 1 over enrolled

Final enrollment, averaged across each term's sections: between 35 and 70 a term over 4 terms, summer excluded, most recently 70 in Fall 2025. That is the shape across years, not this term, which is above.

Seats over time in Fall 2026

How each lecture has filled since dibs first saw it.