How is the AP CSP EOC exam scored?

The AP CSP EOC exam has 70 questions: 57 single-select (pick one answer) and 5 multiple-select (must select ALL correct answers — partial credit not awarded for multi-select). There is no penalty for wrong answers, so guess on every question. Raw score = number of single-select correct + number of multi-select fully correct (both answers right). The maximum raw EOC score is approximately 62 points. This raw score is scaled to a 70-point contribution to the composite. College Board does not publish the exact scaling formula; score calculators use historical data from released exams to estimate the conversion.

Can I retake or fix my Create Performance Task before submission?

Yes — the Create Performance Task is submitted through the College Board digital portfolio system, and you can revise it up until the submission deadline in late April (exact date varies annually). You can iterate on your program, video, and written responses multiple times before submitting. After the submission deadline, no changes are possible. Critical advice: do NOT include your name, teacher's name, or school name anywhere in the CPT materials — personal identification results in a score of 0 for that section. Also read the AP CSP student handouts carefully to ensure your program meets the requirements for abstraction, algorithm, and testing rows before final submission.

What AP CSP EOC topics are most commonly tested in multiple-select questions?

AP CSP multiple-select questions (which require both correct answers) commonly cover: identifying multiple true statements about internet protocols (both TCP/IP and DNS, for example); determining which two solutions have the same algorithmic result; identifying two valid examples of a concept (e.g., which two scenarios demonstrate data compression vs. data encryption); and finding two implications of a computing innovation. Multiple-select questions tend to address nuanced topics where partial knowledge isn't sufficient — you must know the concept thoroughly enough to identify both correct answers without guessing. Practice with released AP CSP EOC questions specifically to recognize the multi-select question patterns.

Does my AP CSP Performance Task score carry over if I retake the exam?

No — if you retake the AP CSP exam in a subsequent year, you must submit a new Create Performance Task. Your previous CPT score does not carry over because the CPT is a through-course component for that specific exam year. However, you can build on your previous project by creating a new, different program — just make sure to start fresh rather than resubmitting work from a prior year (which could be flagged for plagiarism or collaboration violations). Colleges see all AP scores unless you request score withheld or cancellation, so if you retake: make sure to plan appropriately if you want to suppress a lower prior score.

AP CSP Exam Score Calculator: End-of-Course Exam and Performance Task Score Estimator

Estimate your AP Computer Science Principles final score using EOC exam performance and Create Performance Task points. See how the 70/30 weighting determines your AP CSP 1–5 grade.

Related Calculators

AP Comp Sci Principles Exam Calculator
Estimate an AP Computer Science Principles composite and likely 1–5 practice score from the 70-question exam and Create performance-task result.

How AP Exams Are Scored

Every AP exam follows a two-part scoring structure:

Part 1: Multiple Choice / Free Response → Composite Score - Multiple choice questions are scored (right/wrong; no penalty for guessing since 2011) - Free response questions (FRQ, DBQ, LEQ, etc.) are scored by trained AP readers on rubrics - Raw scores from both sections are combined using a weighted formula specific to each exam

Part 2: Composite → AP Score (1–5) Each year, College Board converts composite scores to the 1–5 AP scale using a score setting process based on that year's exam difficulty and student performance. The specific curve varies every year.

AP Score Meanings

Score	Label	College Credit Equivalent
5	Extremely well qualified	A+ or A
4	Well qualified	A, A−, or B+
3	Qualified	B+, B, or C+
2	Possibly qualified	Varies — few schools accept
1	No recommendation	Typically no credit awarded

Score 3+ is generally the minimum for college credit (varies by school and AP subject). ## AP CSP Score Calculation Overview

Two components combine to form your composite (0–100):

Component	Points	Weight
Create Performance Task (CPT)	0–30 composite pts	30%
End-of-Course (EOC) Exam	0–70 composite pts	70%

Step-by-Step Score Estimation

Step 1: Calculate CPT contribution CPT scored rows earned (out of 10) × 3 = CPT composite (out of 30)

Example: 8/10 CPT rows → 8 × 3 = 24 CPT composite points

Step 2: Calculate EOC contribution EOC correct answers: (single-select correct) + (multi-select with both correct) EOC composite: scale raw EOC points (max ≈ 62) to 70-point composite

Approximate: EOC composite = (correct answers / 62) × 70

Example: 48/62 correct → (48/62) × 70 = 54.2 EOC composite points

Step 3: Total composite Composite = CPT composite + EOC composite = 24 + 54 = 78 → AP Score: 4

Score Lookup Table

Composite	AP Score
82–100	5
67–81	4
54–66	3
35–53	2
0–34	1

AP CSP Score Distribution (Recent Years)

Score	Percentage
5	~12%
4	~23%
3	~27%
2	~23%
1	~15%

How to Maximize Your EOC Score

The AP CSP EOC covers 5 Big Ideas with approximately equal weight: - Creative Development: iterative design, collaboration - Data: binary, compression, privacy, data analysis - Algorithms & Programming: variables, lists, procedures, Boolean logic, Big O - Computer Systems & Networks: internet, protocols, cybersecurity - Impact of Computing: benefits, harms, legal/ethical issues

Most commonly missed EOC topics: binary addition and conversion; asymmetric vs. symmetric encryption; parallel vs. sequential computing trade-offs; identifying algorithmic efficiency differences.

Frequently Asked Questions

How is the AP CSP EOC exam scored?: The AP CSP EOC exam has 70 questions: 57 single-select (pick one answer) and 5 multiple-select (must select ALL correct answers — partial credit not awarded for multi-select). There is no penalty for wrong answers, so guess on every question. Raw score = number of single-select correct + number of multi-select fully correct (both answers right). The maximum raw EOC score is approximately 62 points. This raw score is scaled to a 70-point contribution to the composite. College Board does not publish the exact scaling formula; score calculators use historical data from released exams to estimate the conversion.
Can I retake or fix my Create Performance Task before submission?: Yes — the Create Performance Task is submitted through the College Board digital portfolio system, and you can revise it up until the submission deadline in late April (exact date varies annually). You can iterate on your program, video, and written responses multiple times before submitting. After the submission deadline, no changes are possible. Critical advice: do NOT include your name, teacher's name, or school name anywhere in the CPT materials — personal identification results in a score of 0 for that section. Also read the AP CSP student handouts carefully to ensure your program meets the requirements for abstraction, algorithm, and testing rows before final submission.
What AP CSP EOC topics are most commonly tested in multiple-select questions?: AP CSP multiple-select questions (which require both correct answers) commonly cover: identifying multiple true statements about internet protocols (both TCP/IP and DNS, for example); determining which two solutions have the same algorithmic result; identifying two valid examples of a concept (e.g., which two scenarios demonstrate data compression vs. data encryption); and finding two implications of a computing innovation. Multiple-select questions tend to address nuanced topics where partial knowledge isn't sufficient — you must know the concept thoroughly enough to identify both correct answers without guessing. Practice with released AP CSP EOC questions specifically to recognize the multi-select question patterns.
Does my AP CSP Performance Task score carry over if I retake the exam?: No — if you retake the AP CSP exam in a subsequent year, you must submit a new Create Performance Task. Your previous CPT score does not carry over because the CPT is a through-course component for that specific exam year. However, you can build on your previous project by creating a new, different program — just make sure to start fresh rather than resubmitting work from a prior year (which could be flagged for plagiarism or collaboration violations). Colleges see all AP scores unless you request score withheld or cancellation, so if you retake: make sure to plan appropriately if you want to suppress a lower prior score.

Last updated 8/25/2026