Study guide
Study Plan and Test-Day Strategy
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1 Introduction to the OAR
About the OAR Who Takes the OAR and Why Study Plan and Test-Day Strategy
2 Math Skills Test (MST)
Arithmetic Fundamentals Fractions, Ratios, and Proportions Percentages and Real-World Applications Algebra Essentials Geometry Foundations Word Problems, Statistics, and Data Interpretation
3 Reading Comprehension Test (RCT)
RCT Overview and Core Strategies Main Idea and Purpose Questions Detail, Fact, and Inference Questions Vocabulary in Context and Author Tone Advanced Reading Strategies and Passage Types RCT Practice Passages and Questions
4 Mechanical Comprehension Test (MCT)
Forces and Newton's Laws of Motion Energy, Work, and Power Simple Machines and Mechanical Advantage Gears, Belts, and Rotational Motion Fluids, Pressure, and Hydraulics Electricity, Circuits, and Magnetism Motion, Heat, and Thermodynamics MCT Practice Problems and Review
5 Full Practice Tests and Final Review
Practice Test: Math Skills Practice Test: Reading Comprehension Practice Test: Mechanical Comprehension Final Review and Test-Day Preparation
Study Plan and Test-Day Strategy
Key Takeaways Explain This Topic AI
A 4-6 week study plan with 1-2 hours daily covers all three subtests thoroughly.
Prioritize your weakest subtest first — most candidates struggle most with Mechanical Comprehension.
Practice without a calculator from day one to build mental math fluency.
On test day, manage your time by subtest: MST gets 80 seconds per question, RCT gets 90 seconds, MCT gets only 30 seconds.
The adaptive format means harder questions indicate better performance — do not panic when difficulty increases.
Last updated: March 2026
- Recommended 6-Week Study Plan
- Week-by-Week Breakdown
- Week Focus Daily Time Activities
- 1 Diagnostic + Math Foundations 1-2 hrs Take a practice OAR, review arithmetic and algebra basics
- 2 Math Skills Deep Dive 1-2 hrs Geometry, word problems, no-calculator drills
- 3 Reading Comprehension 1-2 hrs Passage strategies, inference practice, timed sets
- 4 Mechanical Comprehension 1-2 hrs Physics concepts, simple machines, fluid dynamics
- 5 Mechanical + Mixed Practice 1-2 hrs Gears/pulleys, electricity, full mixed sets
- 6 Full Practice Tests + Review 1-2 hrs Timed full-length practice, weak-area review
- Study Priority by Subtest
- Subtest Questions Time Seconds/Question Study Priority
- MST 30 40 min ~80 sec High — broadest content coverage
- RCT 20 30 min ~90 sec Medium — strategy over memorization
- MCT 30 15 min ~30 sec High — fastest pace, least intuitive for many
The Mechanical Comprehension Test is the most time-pressured section at only 30 seconds per question. Many candidates find it the hardest because it tests applied physics concepts that require both knowledge and speed.
No-Calculator Math Practice
Since the OAR does not allow a calculator, build these skills early:
Mental Math Shortcuts
- Technique Example
- Break apart multiplication 17 x 6 = (10 x 6) + (7 x 6) = 60 + 42 = 102
- Use fractions for percentages 25% of 80 = 1/4 of 80 = 20
- Round and adjust 49 x 8 = 50 x 8 - 8 = 400 - 8 = 392
- Cross-multiply for proportions 3/4 = x/20 → 3 x 20 = 4x → x = 15
- Estimate square roots √50 ≈ 7.07 (between √49 = 7 and √64 = 8)
Practice these techniques until they become automatic. Every second saved on arithmetic is a second available for problem-solving.
- Test-Day Checklist
- Before the Test
- Get 7-8 hours of sleep the night before
- Eat a balanced breakfast (protein + complex carbs)
- Bring valid government-issued photo ID
- Arrive 30 minutes early
- Leave your phone, calculator, and study materials in the car
- Use the restroom before entering the testing room
- During the Test
- Strategy Why It Matters
- Answer every question Unanswered questions count against you
- Do not rush early questions Early CAT questions carry more weight
- Do not panic at hard questions Harder questions often mean you are doing well
- Track time loosely Glance at the clock every 5-10 questions
- Eliminate obvious wrong answers Even partial elimination improves guessing accuracy
- Trust your preparation Second-guessing wastes time on adaptive tests
- Time Management by Subtest
- Subtest Total Time Questions Target Pace Warning Flag
- MST 40 min 30 ~1 min 20 sec each If stuck > 2 min, make best guess and move on
- RCT 30 min 20 ~1 min 30 sec each If stuck > 2 min on a passage, commit to best answer
- MCT 15 min 30 ~30 sec each If unsure, eliminate and guess immediately
- Common Mistakes to Avoid
- Mistake Better Approach
- Studying only your strongest area Prioritize your weakest subtest
- Using a calculator during practice Practice without a calculator from day one
- Taking the test before you are ready Wait until practice scores consistently hit your target
- Retaking without substantial improvement Only retake if you identify specific fixable weaknesses
- Cramming the night before Review lightly, then rest
- Skipping practice tests Take at least 2-3 full timed practice tests before test day