Carney Curve

Boston College course evaluations · every published number, ranked class by class

Top of the board1.ECON 9902962.LAWS 8856973.PRTO 3300984.BSLW 2299975.PHIL 4932986.LAWS 8308987.SCWK 9960998.EESC 99011009.MUSP 16609610.UGMG 10109811.UNCP 55119712.SCWK 883197

Positions account for how many records stand behind each number, so one perfect review does not outrank a semester of them. Every score shown is the real average — only the ordering is adjusted.

Instructor record · Music · Fall 2021 – Spring 2026

Jeremiah Mcgrann

Professor of the Practice · Music · 28 evaluation records across 12 classes

On each class's board
MUSA 120010th of 11 instructorsMUSA 2207only instructor on recordUNCS 224518th of 21 instructorsMUSA 2205only instructor on recordMUSA 3270only instructor on recordMUSA 32202nd of 2 instructors ProvisionalMUSA 49411st of 3 instructors ProvisionalMUSP 19002nd of 3 instructors ProvisionalMUSP 19101st of 2 instructors ProvisionalMUSP 19201st of 3 instructors ProvisionalMUSP 19253rd of 3 instructors ProvisionalMUSP 19302nd of 3 instructors Provisional
What the overall is made of
88BC evaluations28 records · weight ×1.0 · Fall 2021 – Spring 2026
100RateMyProfessors7 ratings · weight ×2.0 · 100% would take again
—Student reviewsno reviews — does not contribute

Sources are averaged by how much we trust each one and by how many records sit behind it, so a handful of reviews nudges the number rather than replacing it.

What the challenge rank is made of
86thMore challenging than 86% of BC instructorsranked against every one we hold
94BC — “Intellectually Challenging”28 records · raw score out of 100

Boston College's own “intellectually challenging” question — students answer it positively about courses that stretched them, so it measures intellectual challenge and NOT grading, workload or quality. Almost every BC class scores high on it, which is why it is shown as a rank rather than a score. RateMyProfessors separately rates this instructor 66 out of 100 for difficulty — that IS a difficulty measure, but it is about the person across everything they teach, not about any one class, so it is shown here rather than folded into the number above.

What the workload rank is made of
48thMore work than 48% of BC instructorsranked against every one we hold
51BC — “Workload”28 records · raw score out of 100

Boston College reports workload as one of five bands, not as a number of hours, and it does not publish what the bands mean — so this site will not translate it into hours. Higher means more work, which is not the same as worse.

Ratings from outside BC

Not evaluation data

Collected from RateMyProfessors, not from Boston College: 7 ratings, 100% would take again, difficulty 66 out of 100. Difficulty is not a quality signal in either direction — a harder course is not a worse one.

Anyone can post there — no @bc.edu check and no enrolment check — so it is weighted alongside the evaluation data, never above it.

The line

All 13 items · means across 28 records
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9356th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9679th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9146th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9354th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8942nd pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8941st pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
8728th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8634th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9259th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8945th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
5148th pctl
Intellectually ChallengingThe course was intellectually challenging.
9486th pctl
Attendance MattersAttending class was necessary to do well in this course.
9585th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

Class by class

12 classes · 28 sections

How each position is worked outPositions account for how many records stand behind each number, so one perfect review does not outrank a semester of them. Every score shown is the real average — only the ordering is adjusted.

MUSA 1200 Introduction to MusicOvr80Chal57thWork39th
On this class's board10th of 11 instructors

5 sections on record · course itself rated 68 out of 100. See the full board for MUSA 1200.

TermSecInstrCourseWork
Spring 202607817140
Fall 202403836840
Fall 2023058982—
Fall 202203746160
Fall 202104705860
All 13 items for MUSA 1200
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
8511th pctl
Available Outside of ClassThe instructor was available for help outside of class.
8923rd pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
827th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
8611th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8522nd pctl
Clear Learning GoalsThe learning objectives for the course were clear.
819th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
721st pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
763rd pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
8421st pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
797th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
5039th pctl
Intellectually ChallengingThe course was intellectually challenging.
9257th pctl
Attendance MattersAttending class was necessary to do well in this course.
8833rd pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSA 2207 Music of the Romantic EraOvr90Chal81stWork39th
On this class's boardonly instructor on record

5 sections on record · course itself rated 85 out of 100. See the full board for MUSA 2207.

TermSecInstrCourseWork
Spring 202601928340
Spring 202501877860
Spring 202401100100—
Spring 202301989540
Spring 202201737060
All 13 items for MUSA 2207
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9242nd pctl
Available Outside of ClassThe instructor was available for help outside of class.
9774th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9028th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9340th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8833rd pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8829th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9033rd pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8312th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9255th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8937th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
5039th pctl
Intellectually ChallengingThe course was intellectually challenging.
9681st pctl
Attendance MattersAttending class was necessary to do well in this course.
9572nd pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

UNCS 2245 First-Year Topic SeminarOvr80Chal—Work—
On this class's board18th of 21 instructors

5 sections on record · course itself rated 90 out of 100. See the full board for UNCS 2245.

TermSecInstrCourseWork
Fall 202511—83—
Fall 202411—95—
Fall 202311—90—
Fall 202212—95—
Fall 2021128087—
All 13 items for UNCS 2245

Nothing reported

None of the evaluation questions were reported for these records.

MUSA 2205 Music of the Classic PeriodOvr88Chal70thWork78th
On this class's boardonly instructor on record

3 sections on record · course itself rated 81 out of 100. See the full board for MUSA 2205.

TermSecInstrCourseWork
Fall 202501888860
Fall 2023019085—
Fall 2021018570—
All 13 items for MUSA 2205
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9134th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9666th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
8717th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
8920th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8420th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8518th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
8717th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8939th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9467th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
9358th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
6078th pctl
Intellectually ChallengingThe course was intellectually challenging.
9470th pctl
Attendance MattersAttending class was necessary to do well in this course.
9677th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSA 3270 BeethovenOvr90Chal65thWork43rd
On this class's boardonly instructor on record

3 sections on record · course itself rated 80 out of 100. See the full board for MUSA 3270.

TermSecInstrCourseWork
Spring 202501918260
Spring 202401908340
Spring 202201887660
All 13 items for MUSA 3270
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9775th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9883rd pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9346th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9448th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8418th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8725th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
839th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8211th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9358th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8937th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
5343rd pctl
Intellectually ChallengingThe course was intellectually challenging.
9365th pctl
Attendance MattersAttending class was necessary to do well in this course.
9674th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSA 3220 OperaOvr77Chal29thWork—
On this class's board2nd of 2 instructors Provisional

1 section on record · course itself rated 70 out of 100. See the full board for MUSA 3220.

TermSecInstrCourseWork
Fall 2024017770—
All 13 items for MUSA 3220
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
8717th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9349th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
8310th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9343rd pctl
The Course3 items
Well-Organized CourseThe course was well organized.
703rd pctl
Clear Learning GoalsThe learning objectives for the course were clear.
809th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
805th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
774th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
8318th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
765th pctl
Workload, difficulty & attendanceNot ratings
Intellectually ChallengingThe course was intellectually challenging.
8729th pctl
Attendance MattersAttending class was necessary to do well in this course.
9361st pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one. 1 of 13 questions were not reported and are left out rather than shown as zero.

MUSA 4941 Senior SeminarOvr93Chal100thWork78th
On this class's board1st of 3 instructors Provisional

1 section on record · course itself rated 93 out of 100. See the full board for MUSA 4941.

TermSecInstrCourseWork
Fall 202501939360
All 13 items for MUSA 4941
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9349th pctl
Available Outside of ClassThe instructor was available for help outside of class.
100100th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
100100th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9343rd pctl
The Course3 items
Well-Organized CourseThe course was well organized.
9363rd pctl
Clear Learning GoalsThe learning objectives for the course were clear.
9363rd pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9356th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
9367th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
8728th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8725th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
6078th pctl
Intellectually ChallengingThe course was intellectually challenging.
100100th pctl
Attendance MattersAttending class was necessary to do well in this course.
8726th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSP 1900 Individual Lessons: VoiceOvr100Chal84thWork—
On this class's board2nd of 3 instructors Provisional

1 section on record · course itself rated 97 out of 100. See the full board for MUSP 1900.

TermSecInstrCourseWork
Spring 20240110097—
All 13 items for MUSP 1900
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
100100th pctl
Available Outside of ClassThe instructor was available for help outside of class.
100100th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
100100th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
100100th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
100100th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
100100th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9356th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
100100th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
100100th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
100100th pctl
Workload, difficulty & attendanceNot ratings
Intellectually ChallengingThe course was intellectually challenging.
9684th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one. 1 of 13 questions were not reported and are left out rather than shown as zero.

MUSP 1910 Individual Vocal/Instrumental InstructionOvr96Chal84thWork25th
On this class's board1st of 2 instructors Provisional

1 section on record · course itself rated 100 out of 100. See the full board for MUSP 1910.

TermSecInstrCourseWork
Spring 2024019610040
All 13 items for MUSP 1910
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9669th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9562nd pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9670th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9663rd pctl
The Course3 items
Well-Organized CourseThe course was well organized.
100100th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
100100th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9675th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
100100th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
9362nd pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
9361st pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
4025th pctl
Intellectually ChallengingThe course was intellectually challenging.
9684th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSP 1920 Individual Lessons: VoiceOvr100Chal60thWork78th
On this class's board1st of 3 instructors Provisional

1 section on record · course itself rated 100 out of 100. See the full board for MUSP 1920.

TermSecInstrCourseWork
Spring 20240110010060
All 13 items for MUSP 1920
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
100100th pctl
Available Outside of ClassThe instructor was available for help outside of class.
100100th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
100100th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
100100th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
9678th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
9680th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
100100th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
9683rd pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
100100th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
100100th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
6078th pctl
Intellectually ChallengingThe course was intellectually challenging.
9260th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSP 1925 Individual Lessons: VoiceOvr90Chal69thWork25th
On this class's board3rd of 3 instructors Provisional

1 section on record · course itself rated 100 out of 100. See the full board for MUSP 1925.

TermSecInstrCourseWork
Spring 2024019010040
All 13 items for MUSP 1925
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
100100th pctl
Available Outside of ClassThe instructor was available for help outside of class.
100100th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
100100th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
100100th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
100100th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
100100th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
100100th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
100100th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
100100th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
100100th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
4025th pctl
Intellectually ChallengingThe course was intellectually challenging.
9369th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

MUSP 1930 Individual LessonsOvr100Chal48thWork25th
On this class's board2nd of 3 instructors Provisional

1 section on record · course itself rated 100 out of 100. See the full board for MUSP 1930.

TermSecInstrCourseWork
Spring 20240110010040
All 13 items for MUSP 1930
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
100100th pctl
Available Outside of ClassThe instructor was available for help outside of class.
100100th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
100100th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
100100th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
100100th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
100100th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
100100th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
100100th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
100100th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
100100th pctl
Workload, difficulty & attendanceNot ratings
WorkloadHow much work the course took outside class, on Boston College's five-band scale — the band boundaries are not published, so this is not a number of hours.
4025th pctl
Intellectually ChallengingThe course was intellectually challenging.
9048th pctl
Attendance MattersAttending class was necessary to do well in this course.
100100th pctl

Bar length is the rank against every comparable record we hold, not the raw score: BC's questions all have a median around 4.5, so a raw-scale bar would be nearly full on every row and would tell you nothing. Every bar is one ink colour — nothing here is graded green or red. The hatched bars are not ratings at all: a higher number on either describes a different course, not a better one.

How to read this pageScores are out of 100 — Boston College's 1–5 agreement scale, ×20, the way these numbers were printed for years. Almost every class scores high on that scale (the median is about 90), so challenge and workload are shown as a rank against every instructor we hold rather than as a score; the raw figure is in the breakdown above. Neither describes quality, and neither is ever marked better or worse anywhere on this site. A dash means the question was not reported, and is never a zero. The position printed against each class is this instructor's place on that class's own board, computed from the same records the board itself is built from.