The PrepGuin Field Notes
Calm, expert guides for the exam you're actually taking.
ACT, SAT, GMAT, GRE — and how they fit into applications to universities around the world. Written by the team behind PrepGuin.


SAT · 6 min read
Mastering Digital SAT Vocab: Effective Strategies
The Digital SAT no longer features dedicated vocabulary sections. You still need strong vocabulary for reading comprehension and sophisticated writing.

ACT · 6 min
ACT Science: 10-Minute Strategy for Higher Scores
The ACT Science section can feel rushed, but a specific 10-minute strategy helps you manage your time and boost your score significantly. Learn how to approach passages effectively.

COLLEGES · 5 min
How Ivy League Admissions Read Your Application
Ivy League admissions officers review tens of thousands of applications annually. Understanding their nuanced process is key to presenting your strongest profile.

RANKINGS · 5 min
University Rankings: THE vs. QS - What's Different?
Global university rankings influence your graduate school choices and applications. Understanding the methodologies of major systems like Times Higher Education (THE) and QS is crucial.

GRE · 5 min
Mastering GRE Vocab: Your Spaced Repetition System
The GRE General Test includes at least 30 questions directly assessing verbal reasoning. Master the vocabulary you need using spaced repetition. This method is proven effective for long-term retention.

GMAT · 7 min
GMAT Quant Traps: Avoid Losing 50+ Points
GMAT Quant is tough. Learn common pitfalls that cost test takers valuable points and how to master them. Don't let easily avoidable mistakes hinder your score potential.

SAT · 6 min
Digital SAT Module-2 Adaptive Logic Explained
The Digital SAT's adaptive engine isn't just about difficulty; it assesses your readiness in real-time. Understanding how Module 2 dictates your score can significantly refine your prep.

ACT · 5 min
ACT vs SAT in 2026: Choosing the Right Test for You
Deciding between the ACT and SAT for your 2026 college applications is a critical step. Understand their key differences and how to pick the test that best aligns with your strengths.

COLLEGES · 5 min
Top Liberal Arts Colleges in the US for 2026
International students seeking a unique US college experience should consider liberal arts colleges. This guide highlights top institutions for the 2026 admissions cycle.

RANKINGS · 4 min
QS World University Rankings 2026: Key Changes & Impact
The 2026 QS World University Rankings introduced a new methodology, significantly impacting various university standings. Understand these shifts to inform your academic strategy.

GRE · 4 min
Shortened GRE 2026: Every Change Explained
The GRE General Test, shortened significantly in September 2023, continues its streamlined format into 2026. This guide details all changes to help you prepare effectively.

GMAT · 8 min
GMAT Focus Data Insights: Your Section Walkthrough
Master GMAT Focus Data Insights. This section combines analytical skills with data interpretation. We'll walk through its structure and question types.

ACT · 5 min
Digital ACT 2026: Format Changes You Need to Know
The ACT will be fully digital for all administrations in the US by December 2026. Understand the format changes, new features, and how to prepare for this updated test.

RANKINGS · 4 min
QS World University Rankings 2025: Key Changes
The 2025 QS World University Rankings introduced significant methodological adjustments. Understand how these changes impacted top universities and what they mean for your application strategy.

GRE · 5 min
GRE Shortened in 2026: Every Change Explained
The GRE General Test received a significant overhaul in 2026, becoming nearly half its original length. Understand each modification and how it impacts your preparation.

ACT · 6 min
Digital ACT 2026: Format Changes You Must Know
The ACT is transitioning to a fully digital format by late 2026 for all test centers, bringing significant changes to test administration. Understand the new adaptive testing, tool availability, and how to prepare.

COLLEGES · 5 min
Top US Liberal Arts Colleges for International Students
International students find unparalleled opportunities at US liberal arts colleges. These institutions offer a distinctive educational approach focusing on critical thinking and broad knowledge.

GMAT · 4 min
GMAT Focus Edition: Key Changes & Why They Matter
The GMAT Focus Edition, launched in 2023, represents a significant evolution from the classic GMAT. Understand the core differences and their implications for your test preparation.

SAT · 5 min
Digital SAT Bluebook: Features Most Students Miss
Many students overlook powerful features within the official Digital SAT Bluebook app. Using these tools effectively can significantly improve your test preparation and performance.