Keystone Test Cheat Sheet 2026

The 30 highest-yield Keystone Test facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. A data set has values: 4, 7, 7, 9, 13. What is the mean of this data set? → 8
2. An author ends each chapter of a novel with a hint about a dangerous secret. This repeated technique is best described as: → Foreshadowing
3. In a population where p = 0.3 (dominant allele), what is the expected frequency of heterozygotes under Hardy-Weinberg equilibrium? → 0.42
4. The Keystone Exams are administered by which state agency? → Pennsylvania Department of Education
5. Which of the following is the best example of situational irony? → A firefighter's house burns down
6. On the Keystone Algebra I exam, which of the following is a core content area tested? → Linear equations and inequalities
7. Which term describes the state when the concentration of solutes is equal on both sides of a semipermeable membrane and net movement of water stops? → Dynamic equilibrium
8. A character speaks kindly about a rival but the reader, given prior context, understands the words to be insincere. This is an example of: → Verbal irony
9. Which Keystone Biology topic covers the flow of energy through food chains and food webs? → Ecosystems and ecology
10. A box plot shows a minimum of 10, Q1 of 20, median of 30, Q3 of 45, and maximum of 60. What is the interquartile range (IQR)? → 25
11. Which of the following is NOT one of the performance levels on the Keystone Tests? → Developing
12. A student is asked to compare how two authors develop different perspectives on the same topic. This is an example of which Keystone Literature skill? → Integration of knowledge and ideas
13. Which component of the Keystone Literature exam requires students to write an extended response? → The text-dependent analysis (TDA) prompt
14. What is a key goal of the Keystone Literature Test? → To evaluate understanding and analysis of fiction and nonfiction texts.
15. A student reads a passage and identifies the central theme by analyzing character motivations and plot events. Which Keystone subject area is this skill from? → Literature
16. Which of the following best describes the 'college and career readiness' goal of Keystone Exams? → Verifying that students have the academic skills needed to succeed after high school
17. Which Keystone subject area uses the same four-level performance scale as the other Keystone Exams? → All Keystone Exams use the same four-level scale
18. What is the primary purpose of the Keystone Tests? → To measure student proficiency in core subject areas
19. What does the term 'end-of-course exam' mean in the context of Keystone testing? → An assessment given after students complete a specific course of study
20. Which scatter plot description indicates a strong negative correlation? → Points cluster tightly along a line going down to the right
21. How are the scores from Module 1 and Module 2 combined to determine the overall performance level? → The average of the two module scores is calculated.
22. A story's protagonist faces an internal conflict when she must decide whether to report her best friend's cheating. This conflict is best described as: → Person vs. self
23. A student scores at the Advanced level on the Biology Keystone. Compared to a Proficient student, this student has demonstrated: → A deeper and more complex understanding of biology content
24. Pennsylvania's Keystone Exam results are reported publicly as part of which state-level report? → The School Performance Profile (SPP)
25. Which of the following scenarios is an example of 'due process of law'? → A person accused of a crime being given a fair trial before punishment
26. A ball is thrown upward and its height is h = −16t² + 64t. At what time does it reach maximum height? → t = 2 seconds
27. A student scored 78, 85, and 91 on three tests. What score s on the fourth test gives an average of at least 85? → s ≥ 86
28. A student scored 70, 80, 85, 90, and 100 on five tests. Which score, if added as a sixth test, would keep the mean at exactly 85? → 85
29. Which value is NOT in the range of f(x) = x² for all real numbers x? → -1
30. What is free verse poetry? → Poetry that does not follow a regular meter or rhyme scheme