AP Computer Science Principles

What is it?

What exactly is the AP Computer Science Principles?

Show breadth in computing ideas and build a real project for college credit.

AP Computer Science Principles is a fully digital exam that surveys the big ideas of computing: abstraction, data, algorithms, the internet, and the societal impact of technology. The grade combines a through-course Create performance task with a 70-question end-of-course exam. A 3 typically earns credit for a broad introductory computing course, and the exam rewards conceptual understanding over any one language.

The path in brief

1. Join AP CSP via My AP
2. Study the five big ideas
3. Submit the Create performance task
4. Prepare for the end-of-course exam
5. Sit the fully digital exam in May

Before you book

Who is eligible to sit the AP Computer Science Principles?

Who it is for: High-school students wanting a broad computing introduction

The test itself

What is the format of the AP Computer Science Principles?

The AP Computer Science Principles is administered by School-administered via Bluebook and runs 2 hours (exam) + project during year, contains 70 multiple choice + Create performance task questions and requires 3 (1-5 scale) to pass.

Money & time

How much does the AP Computer Science Principles cost?

For the AP Computer Science Principles, the exam fee is $99 (US) / $129 (intl); the all-in cost is typically $99-$169; most candidates spend 1 school year preparing.

The fine print

What are the retake and renewal rules for the AP Computer Science Principles?

Proctoring & delivery

All SAT Suite tests are taken in Bluebook on a laptop or tablet, in a school or an authorised weekend test centre, under a live human proctor. There is no at-home option. Bluebook locks the device, and a built-in Desmos graphing calculator and formula sheet are available throughout the Math section; you may also bring your own approved non-CAS calculator.

Retake policy

There is no limit on SAT attempts and no mandatory waiting period beyond the eight national dates offered each year. The PSAT-related assessments are given once per school year per grade band and are not retaken on demand. Most selective colleges superscore across SAT sittings, taking your best Reading and Writing score and your best Math score.

Score reporting

The SAT reports a 400 to 1600 total built from two 200 to 800 section scores. The PSAT/NMSQT and PSAT 10 report 320 to 1520 with 160 to 760 sections, and the PSAT 8/9 reports 240 to 1440 with 120 to 720 sections, so results across the suite sit on one comparable scale. PSAT/NMSQT reports also carry an NMSC Selection Index of 48 to 228.

Recertification

SAT Suite scores do not expire and never need renewal, but colleges commonly ask for a score from within the last five years and most students test in the spring of eleventh grade and again in the autumn of twelfth grade. Only a PSAT/NMSQT taken in eleventh grade enters the National Merit competition.

Refunds & rescheduling

Cancelling an SAT registration by the change deadline costs 34 dollars; cancelling after the deadline but before test day costs 44 dollars. Changing test centre costs 34 dollars, and late registration costs 38 dollars. Fee-waiver students are not charged for cancellation or late registration.

What it pays

How much does this credential pay?

AP Computer Science Principles has no direct salary outcome — its value is college credit and placement, and the earnings impact flows through the bachelor’s-degree wage premium.

AP Computer Science Principles has no direct salary outcome, because the AP program is a college-credit and placement system rather than a job certification, so the BLS publishes no wage for an AP score; the earnings story runs through the credit it earns and the degree it accelerates. A qualifying score (3 or higher at most colleges, 4 or 5 at selective schools) can satisfy a general-education or introductory-computing requirement, and the real wage context is the BLS college-earnings premium: workers with a bachelor’s degree earn substantially more over a career than workers with a high-school diploma alone, and computing occupations are among the highest-paying major fields BLS tracks, with the Occupational Outlook Handbook reporting six-figure medians for software developers, computer and information research scientists, and related roles. That occupational context matters because CSP is specifically designed as a gateway computing course: it is the AP exam most likely to be a student’s first computing credential, and a 4 or 5 on it is used by many colleges to place students into or out of introductory computing coursework. The practical value is concrete — at a school charging $30,000-60,000 in annual tuition, skipping a general-education or computing-introduction requirement can be worth thousands of dollars — but the honest caveat is that credit policy varies by college. Because CSP is a principles course rather than a programming-exam course, some computing departments grant it only distribution credit and require the Java-based AP Computer Science A exam for placement into the programming sequence, so the score’s value depends on the specific college’s policy, which candidates should check before banking on credit. So the direct answer for a candidate asking whether CSP pays is: it pays through credit and placement at colleges that accept it, and it is an unusually accessible entry point into the computing field that underpins some of the highest salaries BLS reports; check the target school’s AP credit table before treating any score as a guarantee.

Job growth.AP CSP volume has grown rapidly since its 2016-17 launch and now exceeds 175,000 administrations per year; the College Board reports multi-million total AP administrations annually.

Source: College Board AP Computer Science Principles course page

Your schedule

How long should I study for it?

45-70 hours over 8-12 weeks, plus ~10-15 hours for the Create performance task of focused study

A realistic AP Computer Science Principles study plan runs 45-70 hours across 8-12 weeks for the exam-day components, because CSP is a breadth-and-reasoning exam rather than a heavy programming test, and the largest score gains come from mastering the multiple-choice item types and building a strong Create performance task, which together set most of the score. The College Board course and exam description is the scope map: the course is organised around five big ideas — Creative Development, Data, Algorithms and Programming, Computing Systems and Networks, and Impact of Computing — and the exam-day paper is fully digital in the Bluebook app, with 70 multiple-choice questions in 120 minutes (70 percent of the score) and 2 written-response questions in 60 minutes (tied to your Create task), while the Create performance task itself is completed during the year and counts 30 percent. Because the Create task is worth 30 percent and its two exam-day written responses are scored against published rubrics, the plan should build the project in parallel with content study rather than leaving it to the submission deadline: choose a program early, implement it with a list and a procedure, record the video, and assemble the Personalized Project Reference, then drill the written-response prompts that describe program design, algorithm development, and abstraction. The exam-day study window should split into the five big ideas (weeks 1-6), the multiple-choice item types plus written-response drilling (weeks 7-9), and full practice exams in the Bluebook-style interface (weeks 10-12). Self-studying candidates should budget the upper end and add a structured review book; course-takers can weight time toward practice exams. The final two weeks should be full timed rehearsals of 70 multiple-choice in 120 minutes, because pacing on the multi-select items is the constraint most candidates underestimate.

1. Weeks 1-29-10 hrs

   Creative Development and Data

   • Study Big Idea 1: computing innovations, design process, errors and debugging
   • Cover Big Idea 2: binary, data compression, extracting information, program use of data
   • Pick the program you will build for the Create task and sketch its purpose
2. Weeks 3-411-12 hrs

   Algorithms and Programming

   • Study Big Idea 3: algorithms, variables, control structures, lists, procedures
   • Practise tracing pseudocode by hand: loops, conditionals, nested logic
   • Start implementing the Create task program with a list and a procedure
3. Weeks 5-610-11 hrs

   Networks and Impact

   • Study Big Idea 4: the internet, fault tolerance, cybersecurity
   • Cover Big Idea 5: computing’s social impact, bias, legal and ethical concerns
   • Finish the Create program, record the video, and assemble the Personalized Project Reference
4. Weeks 7-912 hrs/week

   Multiple choice and written responses

   • Drill the 57 single-select, 5 passage-based, and 8 multi-select item types
   • Write practice responses for the Create-task prompts: design, algorithm, abstraction, testing
   • Take two full 70-MC practice exams and review every miss by big idea
5. Weeks 10-1210-11 hrs

   Full exams and readiness

   • Take two more full timed 70-MC exams, targeting 4+ then 5
   • Re-drill the multi-select items and the data and algorithm questions
   • Submit the Create task before the April 30 deadline and confirm exam-day logistics

What to buy

Which study resources are worth paying for?

AP Computer Science Principles prep resources split into the College Board official set, review books, online courses, and practice-exam question banks, and the buying logic is anchored by the official materials because the College Board publishes the course and exam description, the Create-task instructions and rubrics, sample questions, and scoring guidelines for free. The official free set — the CED, the Create-task guidelines, and past written-response prompts — defines the content and the scoring standards precisely and should anchor every plan; for CSP specifically, the Create-task rubric is a free document that no third-party book improves on. Review books from major publishers, roughly $15-35, add structured coverage of the five big ideas and practice exams, which helps both course-takers and self-studiers. Online courses and question banks, roughly $40-120, add video instruction and drilling, which helps self-studying candidates who want structure and pacing, and several offer a Bluebook-style practice interface. The footnote that anchors the comparison: prices below are approximate list prices as of mid-2026 and change frequently, and we rank nothing by commission. The exam fee is about $99 per AP exam (plus any school or state fees), with fee reductions available for eligible students. A cheap readiness check is the free sample questions and the Create-task rubric from the College Board before buying anything, because candidates who already took the course often need only a question bank plus full practice exams. Candidates should also verify the school’s AP exam registration process and the Create-task submission deadline, because a late submission loses 30 percent of the score and missed registration windows are the most common avoidable costs in this program.

Prices are approximate list prices as of mid-2026 and change frequently; we rank nothing by commission. The AP exam fee is ~$99 with reductions for eligible students, and the Create performance task must be submitted through the AP Digital Portfolio by the published deadline.

What you'll face

What question types will I see?

The AP Computer Science Principles exam-day test is 3 hours and fully digital in the Bluebook app: 70 multiple-choice questions in 120 minutes (70 percent of the score) plus 2 written-response questions in 60 minutes that ask about your own Create performance task code, while the Create performance task itself is completed during the school year and counts 30 percent. The multiple-choice section has three item types: 57 single-select items, 5 single-select items built around a reading passage about a computing innovation, and 8 multi-select items that require selecting two answers; the items draw on the five big ideas — Creative Development, Data, Algorithms and Programming, Computing Systems and Networks, and Impact of Computing — and many present AP pseudocode to trace. The two written-response questions cover four prompt categories from the published rubric: program design, function, and purpose; algorithm development; abstraction; and testing. The 70 multiple-choice items count 70 percent of the exam-day score and the Create task 30 percent, with the two written-response questions scored against the published Create-task rubric rows. The exam is fully digital in Bluebook, responses auto-submit at the end of each section, and candidates have access to their printed Personalized Project Reference during the written-response section; pacing in the multiple-choice block runs about 100 seconds per item, and the multi-select items reward reading the "select two" stems carefully. The samples below illustrate three of the recurring formats — a data item, a pseudocode-tracing item, and a written-response style prompt. The sample items are editor-written illustrations of the published blueprint, not live test items.

Samples are editor-written illustrations of the published blueprint, not live exam items.

Reference

What are the key facts about the AP Computer Science Principles?

AP Computer Science Principles is a exam credential; awarded by College Board; the exam fee is $99 (US) / $129 (intl); typical preparation is 1 school year; holders typically earn College credit outcomes vary by school (3+ typically qualifies).

In short

Is the AP Computer Science Principles worth it?

• Broad survey of computing big ideas
• 70 multiple-choice questions plus a Create performance task
• Fully digital in Bluebook with a portfolio component
• Scored 1-5; a 3 generally earns credit

Worth comparing

How does the AP Computer Science Principles compare with similar credentials?

• AP Computer Science A College Board
• AP Calculus AB College Board
• AP Statistics College Board

Trust

Where does this information come from?

Everything above is taken from the awarding body's own published material. Fees, question counts and domain weights are revised regularly — check the official page before you pay.

• College Board Awarding body
• Official AP Computer Science Principles exam page Exam page

Research confidence: high · Last reviewed 2026-08