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.

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Mastering Digital SAT Vocab: Effective Strategies

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 Science: 10-Minute Strategy for Higher Scores

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.

How Ivy League Admissions Read Your Application

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.

University Rankings: THE vs. QS - What's Different?

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.

Mastering GRE Vocab: Your Spaced Repetition System

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 Quant Traps: Avoid Losing 50+ Points

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.

Digital SAT Module-2 Adaptive Logic Explained

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 vs SAT in 2026: Choosing the Right Test for You

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.

Top Liberal Arts Colleges in the US for 2026

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.

QS World University Rankings 2026: Key Changes & Impact

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.

Shortened GRE 2026: Every Change Explained

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 Focus Data Insights: Your Section Walkthrough

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.

Digital ACT 2026: Format Changes You Need to Know

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.

QS World University Rankings 2025: Key Changes

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 Shortened in 2026: Every Change Explained

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.

Digital ACT 2026: Format Changes You Must Know

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.

Top US Liberal Arts Colleges for International Students

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 Focus Edition: Key Changes & Why They Matter

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.

Digital SAT Bluebook: Features Most Students Miss

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.

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