CHEM 20A / DEIFEL, NICHOLAS
Chemical Structure
How CHEM 20A grades when DEIFEL, NICHOLAS teaches it. CHEM 20A, every instructor DEIFEL, NICHOLAS, every course
Grades, this instructor
350 letter grades across 2 terms, Fall 2023 to Summer Session A 2024. The course pools every instructor at 3.51 over 4,457 letter grades.
- Raw average
- 3.65
- The mean of this instructor's recorded letter grades in this course.
- In the A range
- 82.6%
- A+, A and A minus out of 350 letter grades.
- D, F or W
- 4.9%
- D-range and F grades plus withdrawals, divided by letter grades plus withdrawals.
- Taken pass/no pass
- 1.1%
- 3 of 4 pass/no-pass outcomes passed. Share is of letter, P/NP and S/U outcomes.
Grade distribution
- A+28 / 8%
- A233 / 66.6%
- A-28 / 8%
- B+17 / 4.9%
- B17 / 4.9%
- B-5 / 1.4%
- C+1 / 0.3%
- C2 / 0.6%
- C-2 / 0.6%
- D+0 / 0%
- D1 / 0.3%
- D-0 / 0%
- F16 / 4.6%
- I1 of 355
- NP1 of 355
- P3 of 355
Percentages are of the 350 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), and incompletes (I). They are excluded from GPA.
Term by term
Raw averages for the terms in this record. A missing term does not establish that this instructor did not teach it. Summer sessions are included when present.
Dashed line: course average across all instructors, 3.51.
Is one term a guide to the next?
Across the measured corpus, the same course and instructor's term averages were strongly correlated, including terms several years apart. That is why the adjustment does not weight recent terms more heavily. This is a dataset-wide pattern, not a promise about this instructor's next class.
Teaching it in Fall 2026
No sections are confirmed under this instructor's record in the course listing dibs read for Fall 2026.
Every CHEM 20A section and instructorReading these figures
Raw is the mean of the recorded letter grades. The adjusted historical GPA pulls an instructor's average toward the course's adjusted average, which itself uses a department prior. It is a comparison aid, not a calibrated prediction or a student rating. Small samples carry more uncertainty. All recorded instructor roles are included, and a section is counted only once for this instructor. Grades cannot establish workload or explain why outcomes differed.
What students say
dibs measures outcomes. For students' experiences of the class, BruinWalk has reviews.
Reviews for DEIFEL, NICHOLAS in CHEM 20A