What Is AP Computer Science Principles? (Exam Guide)
AP Computer Science Principles (AP CSP) is an introductory high-school course and exam about how computing works and affects people. The exam combines 70 multiple-choice questions with a programming project called the Create performance task. The project makes up 30% of your AP score; the multiple-choice section makes up 70%. No formal programming background is required.
If college websites and exam instructions feel packed with unfamiliar terms, start with this: AP CSP tests more than your ability to write code. It also asks you to understand data, networks, algorithms, and the effects of computing. You can learn the key ideas step by step, even if you have never programmed before.
I often see students focus on learning a language first, then feel caught off guard by questions about privacy, data, or how an algorithm works. A better plan is to learn the course’s core ideas and practice explaining them, while building a small program that meets the Create task rules.
AP Computer Science Principles: Course Overview, Exam Format & Eligibility
AP CSP introduces core ideas in computing through programming and other topics, such as data and the impact of technology. The course is designed for beginners, and a formal programming prerequisite is not required. Your school decides how it offers the course, so check its requirements and schedule.
The exam has two parts. The multiple-choice section tests your understanding of course concepts, while the Create performance task asks you to develop and document a program. Together, they make up your AP score.
| Exam part | What you do | Share of AP score |
|---|---|---|
| Multiple-choice | Answer 70 questions in 2 hours | 70% |
| Create performance task | Develop and document a program, then submit required materials | 30% |
AP scores run from 1 to 5. The score reflects your performance on the AP assessment; it does not by itself decide whether a college will award credit or placement. Colleges set their own policies, and rules can vary by school and program.
AP CSP may suit you if you want a broad introduction to computing, whether or not you plan to major in computer science. It can also help you explore whether you enjoy programming and computational thinking. It does not guarantee admission to a major, college credit, or advanced placement.
AP CSP Curriculum, Create Performance Task & Exam Requirements
AP CSP is organized around five Big Ideas. They connect programming skills with the systems, data, and human choices behind computing. The Create performance task gives you a chance to apply some of those skills in a program you develop and document.
The five Big Ideas are:
- Creative Development: How people design, build, test, and improve computing products.
- Data: How information is represented, collected, and used.
- Algorithms and Programming: How instructions solve problems, including the use of variables, conditionals, loops, lists, and procedures.
- Computer Systems and Networks: How computers and networks support communication and computation.
- Impact of Computing: How computing affects people, communities, and society.
An algorithm is a set of steps for solving a problem. A variable stores a value, while a conditional lets a program choose what to do based on a test. A loop repeats instructions. A list stores related items, and a procedure is a named group of instructions that can be used to carry out a task.
The Create task asks you to make a program and submit required documentation through the AP Digital Portfolio. Students are allocated at least nine in-class hours to develop and document the program individually. The task is worth 30% of the AP score, so it needs time for planning, testing, and careful preparation.
Your program should address a problem or interest you choose and meet the current task requirements. You will need to document parts of your program and complete the required written responses. The exact materials and submission steps can change, so use the current AP CSP Course and Exam Description and follow your teacher’s instructions.
Before you begin, turn the requirements into a checklist:
- Choose a project idea that you can complete and explain.
- Plan the program’s purpose and basic steps.
- Build and test the program, keeping track of changes.
- Prepare the required code segments and other portfolio materials.
- Write your own responses and check that they match your program.
- Confirm the current submission deadline and portfolio steps.
Preparing for the Exam: Study Plan, Academic Integrity & Student Experience
A strong study plan covers the full course, not just coding. Practice reading code, tracing what it does, and explaining the choices behind it. For the Create task, plan early and follow the current rules for collaboration, attribution, and independent work.
A practical study sequence
1. Build the foundations. Learn how variables, conditionals, loops, lists, and procedures work. Also review data representation, networks, and the effects of computing. When you read code, trace it one step at a time and note how values change.
2. Practice exam questions. Use released or teacher-provided questions to see which Big Ideas need more work. For code questions, predict the result before checking the answer. For concept questions, explain why an answer fits instead of relying only on memorization.
3. Add timed practice. The multiple-choice section lasts two hours for 70 questions. Practice answering under a time limit, then review errors. Look for patterns: Did you misread a condition, misunderstand a network concept, or rush through a question?
4. Develop the Create task in stages. Choose a manageable idea, make a working program, test it, and prepare the required documentation. Leave time to check the task instructions and your portfolio materials. Do not wait until the last day to find out how your school submits work.
| Study need | Useful practice | What to check |
|---|---|---|
| Code tracing | Follow a program line by line | Values, conditions, and loop steps |
| Course concepts | Practice questions by Big Idea | Which topics lead to repeated errors |
| Time management | Complete timed question sets | Pace and careful reading |
| Create task | Build, test, and document your own program | Requirements, attribution, and deadline |
A common planning mistake is to treat the Create task as a quick final project. In practice, the program and its documentation both need attention. For example, a student who has a working program may still need to check that the submitted code segments and written responses meet the current instructions. This is an illustrative scenario, not a substitute for the official task rules.
Academic integrity matters throughout the task. Follow the College Board’s current rules on what help or collaboration is allowed, how to credit sources, and which work must be your own. Do not copy another student’s code or present someone else’s work as yours. If you are unsure whether a kind of help is permitted, ask your teacher before using it.
Deadlines and submission steps are time-sensitive. Check the current AP exam calendar and course materials, then confirm how your teacher wants you to complete the portfolio steps. Keep a personal checklist, but treat the official instructions as the source of truth.
College Credit, Computing Pathways & Career Outcomes
AP CSP can help you explore computing, but its effect on college plans depends on the school you choose. Colleges decide whether the exam earns credit or placement and what score they require. Check each college’s current policy before counting on AP CSP to reduce course costs or change your degree plan.
AP credit and placement are not the same. Credit may count toward a degree’s course requirements. Placement may let a student begin at a more advanced level without receiving the same type of credit. A college may offer one, both, or neither for AP CSP.
| What to check | Why it matters |
|---|---|
| Whether the college accepts AP CSP | Acceptance varies by institution |
| Minimum score required | The required score can differ |
| Credit or placement offered | These can have different effects on your course plan |
| Rules for your intended major | Some programs may use different requirements |
Look for the policy on the college’s official website or ask its admissions or registrar office. If you are comparing schools, record the policy and the date you checked it. Do not use expected AP credit to plan a degree or lower projected costs until the college confirms what it will award.
The course may also help you decide whether to explore computer science or related subjects. It provides a broad foundation, but it does not guarantee a place in a college major or prepare you for every advanced course. Check the entry requirements for any program you are considering.
The key takeaway is simple: learn the five Big Ideas, practice the exam format, and treat the Create task as both a program and a set of required submissions. Then verify current rules and college policies before making decisions.
AP CSP exam FAQs
How many questions are on the AP CSP exam?
The multiple-choice section has 70 questions and lasts 2 hours. The Create performance task is the other part of the assessment.
What percentage of the AP score is the Create task?
The Create performance task makes up 30% of the AP score. Multiple-choice questions account for the other 70%.
Do I need to know programming before taking AP CSP?
No formal programming prerequisite is required. The course introduces programming concepts, though your school may have its own enrollment rules.
How much class time is set aside for the Create task?
Students are allocated at least nine in-class hours to develop and document the program individually. Follow your teacher’s instructions and current College Board rules.
What topics does AP CSP cover?
It covers Creative Development, Data, Algorithms and Programming, Computer Systems and Networks, and Impact of Computing.
Does AP CSP guarantee college credit?
No. Each college sets its own credit and placement policies. Check the current policy at every college you are considering.
Can I use someone else’s code for the Create task?
Do not copy or claim another person’s code as your own. Follow the current rules for allowed collaboration, attribution, and independent work.
Where can I check the Create task deadline?
Check the current AP exam calendar and course materials, and confirm submission steps with your teacher. Deadlines and procedures may change.
(This article was written by one of our staff writers, Nathan Sterling. Visit our Meet the Team page.)
