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BIOSTAT 200A

Methods in Biostatistics A

4 units

Sections & times

Lecture and discussion. The registrar has published a final exam time.

Fall 2026: 1 lecture and 1 discussion. All of them are open. The oldest of these readings was 5 hours ago.

Grades

3.73

Average grade awarded in BIOSTAT 200A. Not a student rating: this is what the grades were.

In the A range

78%

of the 91 letter grades

D, F or W

0.0%

of every letter grade awarded, plus withdrawals

Taken pass/no pass

0%

nobody in the record took it pass/no pass

The registrar's own records: 91 grades over 4 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.

What is inside that record

No summer session is in that record.

The table below splits them, and term averages across those 4 terms ran 3.44 to 3.93.

Historical grades for LI, SIJIA, across recorded terms. The course summary above includes all professors.

No grade history is available for this professor in this course.

By instructor

Predicted GPA, raw average, sample size, terms, A range and the workload reviewers reported for every instructor with a grade record in this course
Instructor Predicted GPA Raw n Terms A range Workload Fall 2026
KLOMHAUS, ALEXANDRA reviews ↗ 3.63 3.60 57 3 68% - not teaching it
GJERTSON, DAVID W reviews ↗ 3.87 3.93 34 1 94% - not teaching it
Why Predicted is not the Raw average

“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.

Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.

Reviews for BIOSTAT 200A

Workload and assignments

Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.

dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.

Read the source reviews

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

Lecture, three hours; discussion, one hour; laboratory, one hour. First course in biostatistical methods intended for graduate students in biostatistics to prepare students pursuing careers as practicing biostatisticians. Prior knowledge of probability or statistics not assumed. Students should have working knowledge of calculus and be very comfortable with mathematical and algebraic reasoning. Introduction to basic concepts in analysis, presentation of data, and statistical aspects of design of studies. Special emphasis is given to application of statistical methods to public health, medical, biological, and health sciences. Interpretation and communication of statistical findings is stressed. Focus on methodology, applications, and concepts rather than mathematical statistics or probability theory. S/U or letter grading.

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 : the oldest of these 2 readings. Seat readings are snapshots, not live availability. Their timestamps show when dibs last checked.

Final enrollment, averaged across each term's sections: between 14 and 34 a term over 4 terms, summer excluded, most recently 14 in Fall 2025. That is the shape across years, not this term, which is above.

From the people who took it

Student reviews

What taking BIOSTAT 200A was like: the work, the teaching, and what students wish they’d known.

Your experience could be the first.

No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.

Looking for more perspectives?

External reviews are separate and do not count toward the dibs rating.

Read reviews on BruinWalk

Community guidelines

Seats over time in Fall 2026

How each lecture has filled since dibs first saw it.

A dot is a reading where something moved: the seat count, the status, or the waitlist.

What a flat run means, and where a line starts

Flat between dots means it did not drift, it held and then jumped, and a line starts when dibs first saw that lecture rather than reaching back before it existed. A lecture that has never moved draws a flat line across the whole window, and one with two or three readings draws a line joining them, which is too few to read a trend from.

Lec 1 · Li, S. · 12 of 23 enrolled

Filled by 1 over about 2 months

12 of 23 · 11 left in its discussions

11 to 12 enrolled across 3 readings, +1.

17 Aug 15:079 Sep 07:091 Oct 23:12
dibs read 168 of the 853 hours its hourly record covers, 20%, and did not look in 685. dibs had no hourly record before 27 Aug, which is the other 236 of 1089 plotted.12 of 23 enrolled at the newest reading, 84 minutes ago, with 11 left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 23:12, 11 to 12. The line joins two or three readings, which is too few to read a trend from. dibs read 168 of the 853 hours its hourly record here covers, 20%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 685 hours dibs was keeping a record and did not reach this section. Nothing before 27 August at 11:00, where this section's record starts, has a read either way, which is 236 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.