Carney Curve

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

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 · Computer Science · Spring 2024 – Spring 2026

Alexander Creiner

Professor of the Practice · Computer Science · 25 evaluation records across 4 classes

On each class's board
What the overall is made of
77BC evaluations25 records · weight ×1.0 · Spring 2024 – Spring 2026
92RateMyProfessors5 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
44thMore challenging than 44% of BC instructorsranked against every one we hold
87BC — “Intellectually Challenging”25 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 56 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
38thMore work than 38% of BC instructorsranked against every one we hold
47BC — “Workload”25 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: 5 ratings, 100% would take again, difficulty 56 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 25 records
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
8416th pctl
Available Outside of ClassThe instructor was available for help outside of class.
8618th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
8315th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
8619th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8216th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8421st pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
8316th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8842nd pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
8014th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8216th 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.
4738th pctl
Intellectually ChallengingThe course was intellectually challenging.
8744th pctl
Attendance MattersAttending class was necessary to do well in this course.
8118th 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

4 classes · 25 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.

CSCI 1101 Computer Science IOvr73Chal17thWork3rd
On this class's board4th of 11 instructors

16 sections on record · course itself rated 72 out of 100. See the full board for CSCI 1101.

TermSecInstrCourseWork
Spring 202603827840
Spring 202614868640
Spring 202615727240
Fall 202505717340
Fall 202522828020
Fall 202523727620
Fall 202524535840
Fall 202406817660
Fall 202425787840
Fall 2024268969
Fall 2024279080
Spring 202402606040

Showing the first 12.

All 13 items for CSCI 1101
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
816th pctl
Available Outside of ClassThe instructor was available for help outside of class.
849th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
806th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
826th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8113th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8313th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
816th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
8518th 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.
8213th 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.
363rd pctl
Intellectually ChallengingThe course was intellectually challenging.
8417th pctl
Attendance MattersAttending class was necessary to do well in this course.
765th 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.

CSCI 3383 AlgorithmsOvr81Chal61stWork85th
On this class's board1st of 6 instructors

4 sections on record · course itself rated 77 out of 100. See the full board for CSCI 3383.

TermSecInstrCourseWork
Spring 202501797660
Spring 202502857880
Spring 202401777480
Spring 202402848160
All 13 items for CSCI 3383
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
8820th pctl
Available Outside of ClassThe instructor was available for help outside of class.
8921st pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
8617th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
8919th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
776th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8416th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
9136th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
9150th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
652nd pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
765th 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.
7085th pctl
Intellectually ChallengingThe course was intellectually challenging.
9261st pctl
Attendance MattersAttending class was necessary to do well in this course.
8936th 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.

CSCI 2243 Logic and ComputationOvr88Chal53rdWork78th
On this class's board2nd of 5 instructors

3 sections on record · course itself rated 82 out of 100. See the full board for CSCI 2243.

TermSecInstrCourseWork
Fall 2025018883
Fall 202502898360
Fall 202403878160
All 13 items for CSCI 2243
The Professor4 items
Clearly Explains MaterialThe instructor was effective at creating an understanding of difficult subject matter.
9030th pctl
Available Outside of ClassThe instructor was available for help outside of class.
9134th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
8617th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9340th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8727th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
9043rd 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.
9258th pctl
Gives Feedback PromptlyI received feedback on my work in a timely manner.
8114th pctl
Meaningful FeedbackThe feedback I received on my work was meaningful.
8314th 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.
9153rd pctl
Attendance MattersAttending class was necessary to do well in this course.
9254th 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.

CSCI 3384 Computability and Computational ComplexityOvr89Chal85thWork85th
On this class's board2nd of 2 instructors Provisional

2 sections on record · course itself rated 80 out of 100. See the full board for CSCI 3384.

TermSecInstrCourseWork
Spring 202601918460
Spring 202501867680
All 13 items for CSCI 3384
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.
9238th pctl
Brings Out Your Best WorkThe instructor motivated me to do my best work.
9244th pctl
Sparked My InterestThe course stimulated my interest in the subject matter.
9448th pctl
The Course3 items
Well-Organized CourseThe course was well organized.
8420th pctl
Clear Learning GoalsThe learning objectives for the course were clear.
8620th pctl
Useful Beyond the CourseWhat I learned is applicable beyond this course.
8411th pctl
Assignments & Feedback3 items
Assignments Help You LearnAssignments and exams contributed to my learning.
9473rd 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.
8831st 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.
7085th pctl
Intellectually ChallengingThe course was intellectually challenging.
9685th pctl
Attendance MattersAttending class was necessary to do well in this course.
9147th 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.