AP Computer Science Principles Exam
Are you preparing to take the AP Computer Science Principles exam? Whether you’re a seasoned programmer or a newcomer, this exam can be a stressful but equally rewarding experience. But with any AP exam, preparation is key.
This blog will be your one-stop guide to acing the AP Computer Science Principles exam. We’ll break down the exam format, explore valuable study tips, and provide you with resources to ensure you feel confident and prepared on test day.
Overview of the AP Computer Science Principles Exam
The AP Computer Science Principles exam assesses your understanding of computer science through a combination of hands-on programming and theoretical knowledge. The exam itself is divided into two parts. The first part consists of a multiple-choice section and written responses that test your grasp of foundational concepts in computing like algorithms, data structures, and the internet.
The second part is a creative project where you develop your own computer program and then answer questions about your design choices and the thought process behind the program. This project allows you to show your problem-solving skills and ability to apply your learnings to a real-world scenario.
Difference Between AP Computer Science A and AP Computer Science Principles Exams
The main differences between the AP Computer Science A and AP Computer Science Principles exams lie in their different areas of focus, content, and exam format.
AP Computer Science A
The AP Computer Science A exam assesses your proficiency in programming concepts, including writing and analyzing code, understanding algorithms, and solving problems using Java.
AP Computer Science Principles:
The AP Computer Science Principles exam evaluates your understanding of computational thinking, programming concepts (though not tied to a specific language), data analysis, and the societal implications of computing through multiple-choice questions, free-response questions, and performance tasks.
What is the AP Computer Science Principles Exam Format?
In the AP Computer Science Principles exam, Section I comprises an end-of-course multiple-choice exam, which contributed to 70% of the total score. It includes various question types, such as single-select and multiple-select, covering a range of computational concepts. Section II includes a performance task and written response, which constitute 30% of the score.
Section I: End-of-course multiple-choice exam
In Section I of the AP Computer Science Principles exam, you give an end-of-course multiple-choice examination comprising 70 questions. You have a total of 120 minutes to complete this section, which contributes to 70% of the overall score.
The questions offer four answer options each. Among these, 57 are single-select, multiple-choice questions. Additionally, there are five single-select questions accompanied by a reading passage about a computing innovation. Additionally, you’ll come across eight multiple-select multiple-choice questions where you must select two answers.
Section II: Create performance task and written response
Section II of the AP Computer Science Principles exam comprises 30% of the total score. You have to submit a performance task and a written response. This section involves creating a performance task program code, a video, and a student-authored Personalized Project Reference, which is allocated 10% of the total score. You’ll have 9 hours in class to write your project reference.
The performance task is followed by two written response questions. This is part of the end-of-course exam lasting 60 minutes, contributing to 20% of the total score. You will respond to two questions related to the code in your Personalized Project Reference. The two questions include four distinct prompts: Written Response 1, Written Response 2(a), Written Response 2(b), and Written Response 2(c). You will have access to your Personalized Project Reference while responding to these prompts. The four categories listed below align with the four prompts.
| Prompt Category | Required Learning Objectives |
|---|---|
| Written response 1: program design, function, and purpose | You should be prepared to respond to prompts about your program that assess any of the following learning objectives: CRD-2.A: Describe the purpose of computing innovation. CRD-2.B: Explain how a program or code segment functions. CRD-2.C: Identify input(s) to a program. CRD-2.D: Identify output(s) produced by a program.CRD-2.E: Develop a program using a development process. CRD-2.F: Design a program and its user interface. CRD-2.G: Describe the purpose of a code segment or program by writing documentation. |
| Written response 2(a): algorithm development | You should be prepared to respond to prompts about your program that assess any of the following learning objectives: CRD-2.B: Explain how a program or code segment functions. AAP-2.E.b: Evaluate expressions that use relational operators. AAP-2.F.b: Evaluate expressions that use logic operators. AAP-2.H.b: Determine the result of conditional statements. AAP-2.J: Express an algorithm that uses iteration without using a programming language. AAP-2.K.b: Determine the result or side effect of iteration statements. AAP-2.L: Compare multiple algorithms to determine if they yield the same side effect or result. AAP-2.M.a: Create algorithms.AAP-2.M.b: Combine and modify existing algorithms. |
| Written response 2(b): errors and testing | You should be prepared to respond to prompts about your program that assess any of the following learning objectives: CRD-2.I.a: Identify the error. CRD-2.I.b: Correct the error.CRD-2.J: Identify inputs and corresponding expected outputs or behaviors that can be used to check the correctness of an algorithm or program. |
| Written response 2(c): data and procedural abstraction | You should be prepared to respond to prompts about your program that assess any of the following learning objectives: AAP-1.D.a: Develop data abstraction using lists to store multiple elements. AAP-1.D.b: Explain how the use of data abstraction manages complexity in program code. AAP-2.O.a: Write iteration statements to traverse a list. AAP-2.O.b: Determine the result of an algorithm that includes list traversals. AAP-3.B: Explain how the use of procedural abstraction manages complexity in a program. |
Source: CollegeBoard
How Long is the AP Computer Science Principles Exam?
The in-person portion of the AP Computer Science Principles exam is 2 hours long. This section consists entirely of multiple-choice questions. There is also a separate, out-of-class component that involves creating a program and writing about it. You are given 9 hours of in-class time to work on this project, but there is no strict time limit on how long it takes to complete outside of class.
What’s Tested on the AP Computer Science Principles Exam?
The College Board gives out a concept called the Big Ideas, which helps you get an understanding of what is to be tested on the exam. This provides a framework for you to connect concepts and deepen your understanding. The Big Ideas for the AP Computer Science Principles exam sourced from the College Board are as follows:
- Big Idea 1 emphasizes the importance of collaboration and iterative design processes in developing computing innovations.
- Big Idea 2 highlights the central role of data in computing, from conveying initial conditions to generating new knowledge.
- Big Idea 3 focuses on algorithms and programming, emphasizing decision-making and abstraction to create complex programs.
- Big Idea 4 discusses the significance of computing systems and networks, particularly the Internet, in facilitating global data transfer and enhancing processing efficiency.
- Big Idea 5 underscores the societal impact of computing, emphasizing the importance of privacy, security, and ethical considerations in responsible computing.
When is the AP Computer Science Principles Exam in 2024?
According to the College Board, the AP Computer Science Principles exam in 2024 will be held on Wednesday, May 15th, at 12 p.m. local time. Few schools also have late testing based on a few circumstances permitted by the college board, so make sure you keep in contact with your AP coordinator and the College Board website for its policies.
How is the AP Computer Science Principles Exam Scored?
The AP Computer Science Principles exam is scored on a scale of 1–5. Each test is curved, so scores vary from year to year. For reference, here’s a look at how students scored on the AP Computer Science Principles exam in May 2020:
| Score | Meaning | Percentage of Test Takers |
|---|---|---|
| 5 | Extremely qualified | 10.9% |
| 4 | Well qualified | 23.6% |
| 3 | Qualified | 37.1% |
| 2 | Possibly qualified | 19.8% |
| 1 | No recommendation | 8.6% |
What’s a Good Score on the AP Computer Science Principles Exam?
A good score on the AP Computer Science Principles exam depends on your academic goals. A 3 is considered passing, which means you’ve shown a grasp of the course content and may earn college credit (depending on the institution). If you’re aiming for a strong understanding and potential college credit, a 4 or 5 is ideal. These scores indicate a high level of proficiency in applying computer science concepts and problem-solving techniques.
It’s advisable to check online or with your college (or potential colleges) to confirm the specific score required for credit before registering for the AP Computer Science Principles exam.
AP Computer Science Principles Exam Past Questions and Scoring Information
This table provides sample AP Computer Science Principles exam questions from 2023. To access the full range of past exams and other resources, visit the College Board’s official website.
| Create-Sample Responses | Scoring Information | Scoring Commentary |
|---|---|---|
| Sample A: Video Sample A: Written ResponseSample B: Video Sample B: Written ResponseSample C: Video Sample C: Written Response | Scoring GuidelinesChief Reader ReportScore Distributions | Create: Scoring Commentary |
3 Tips to Prepare for the AP Computer Science Principles Exam
1. Read directions
Before starting with the task, carefully read all the instructions and guidelines provided. It’s better to underline key points to ensure you understand what is required. Additionally, the AP Computer Science Principles Student Handouts include tips on reading before completing the performance task.
2. Accurate and concise answers
When responding to prompts on the AP exam, focus on providing clear answers. Review your responses to ensure they address the questions accurately.
3. Practice regularly
Before the AP exam, engage in practice programming tasks provided by your teacher. You may also find online past-year question papers to practice. Make sure you work on the feedback to enhance your skills.
From the Desk of Yocket
The AP Computer Science Principles exam offers a comprehensive introduction to fundamental concepts in computing, including programming, algorithms, data analysis, and the societal impacts of technology. For those of you contemplating a future in computer science, engineering, data science, or related fields, excelling on the AP exam can signal readiness for collegiate-level coursework. It can also streamline your academic journey by granting credit for introductory computer science courses.
While the AP exam can be challenging, it’s achievable through dedicated effort. It requires a strong foundation in computer science concepts and programming skills. You’ll need to be able to apply this knowledge to analyze computational problems and real-world scenarios. The performance task component also assesses your problem-solving abilities and capacity to communicate solutions effectively. Success on the exam hinges on a genuine interest in computer science and a willingness to invest time and effort, as there are multiple components beyond the main test.
Frequently Asked Questions
What is the format of the AP Computer Science Principles exam?
In the AP Computer Science Principles exam, Section I comprises an end-of-course multiple-choice exam, contributing to 70% of the total score. It includes various question types, such as single-select and multiple-select questions. This covers a range of computational concepts. Section II involves a performance task and written response, constituting 30% of the score.
When is the AP Computer Science Principles exam held?
The AP Computer Science Principles exam is usually held in early May. Be sure to double-check the date and time with your AP coordinator or the College Board website in case of any changes, as it may have slight changes from year to year.
What is a good score on the AP Computer Science Principles exam?
While scoring a 3 or above on the AP Computer Science Principles exam is generally seen as passing, certain colleges may only grant college credit for scores of 4 or 5. However, some colleges may still award credit for a score of 3 or higher.