Best Study Techniques Backed by Science

Students spend thousands of hours studying — yet most use methods that cognitive science has ranked as low utility. Highlighting, rereading, and massed cramming feel productive. They rarely produce durable learning. In 2013, Dunlosky and colleagues published a landmark review in Psychological Science in the Public Interest evaluating ten common study techniques across decades of research. Their conclusion was clear: a small number of strategies consistently outperform everything else.

This guide translates that research into a practical framework. You will learn which techniques earn the highest evidence ratings, which popular methods fail under scrutiny, and how to build a study system that combines the winners into a daily routine you can start this week.

How Study Techniques Were Ranked

Dunlosky et al. (2013) evaluated techniques on four criteria:

• Learning conditions — does it work across different materials and settings?
• Student characteristics — does it work for different ages and ability levels?
• Learning outcomes — does it improve memory, comprehension, and transfer?
• Real-world applicability — can students actually use it without special equipment?

Techniques were classified as high utility, moderate utility, or low utility. High-utility methods showed consistent benefits across contexts with strong evidence. Low-utility methods either lacked evidence or worked only in narrow conditions.

Subsequent research — including meta-analyses on retrieval practice (Adesope et al., 2013) and spaced repetition (Cepeda et al., 2006) — has reinforced these rankings. When in doubt, bet on retrieval and spacing.

High-Utility Techniques (Use These First)

These three strategies should form the core of any serious study system. They have the strongest evidence base and the broadest applicability.

1. Practice Testing (Active Recall)

What it is: Testing yourself on material — through flashcards, practice questions, blank-page recall, or oral quizzing — rather than passively reviewing.

Why it works: The testing effect (Roediger & Karpicke, 2006) shows that retrieval strengthens memory more than restudy. Each successful recall reconsolidates the memory trace; each failed recall reveals gaps before they matter on exam day.

How to use it: After every study session, close your notes and retrieve. Replace at least 60% of rereading time with self-testing. Use free-recall formats (blank page, short answer) over multiple choice whenever possible.

Deep dive: How Active Recall Works and Why It Beats Rereading

2. Distributed Practice (Spaced Repetition)

What it is: Spreading study sessions over time rather than massing them into one block. Review at expanding intervals: 1 day, 3 days, 7 days, 14 days, 30 days.

Why it works: The spacing effect is one of the oldest findings in memory research. Distributed practice produces better long-term retention than identical total study time concentrated in one session (Cepeda et al., 2006).

How to use it: Schedule reviews on a calendar or use spaced repetition software. Never cram the same material five times in one evening — space it across days and weeks.

Deep dive: The Complete Guide to Spaced Repetition

3. Interleaved Practice

What it is: Mixing different topics or problem types within a single study session instead of blocking one topic at a time.

Why it works: Interleaving forces your brain to discriminate between similar concepts and select the correct strategy for each problem — a skill exams demand. Rohrer and Taylor (2007) found interleaved math practice outperformed blocked practice on delayed tests.

How to use it: Instead of studying Chapter 4, then Chapter 5, then Chapter 6, mix problems from all three. Alternate between related but distinct topics (e.g., differentiation and integration, or two similar historical periods).

Note: Interleaving feels harder during study — that difficulty is the mechanism. Blocked practice feels smoother but produces weaker discrimination skills.

Moderate-Utility Techniques

These methods have promising evidence but narrower applicability, less research support, or require more skill to implement effectively.

Elaborative Interrogation

Asking yourself "why?" and "how?" while studying. "Why does this fact make sense?" "How does this connect to what I already know?" Works best when you have prior knowledge to connect to. Less effective for completely unfamiliar domains.

Self-Explanation

Explaining steps or concepts to yourself as you work through problems — similar to the Feynman Technique. Strong for math, science, and procedural learning. Requires monitoring your own understanding, which improves with practice.

Mnemonic Devices

Memory palaces, keyword method, acronyms, and peg systems. High utility for memorizing discrete facts, lists, and sequences. Less useful for deep conceptual understanding alone. Best paired with retrieval and spacing.

Deep dive: Memory Palace Technique Step-by-Step and How to Memorize Anything Faster

Dual Coding

Combining verbal information with visual representations — diagrams, charts, mental images. Supported by Paivio's dual coding theory. Works well for spatial, anatomical, and process-based material.

Low-Utility Techniques (Use Sparingly)

These methods are popular but ranked low by Dunlosky et al. because evidence for general benefit is weak, narrow, or absent.

Rereading

The most common study method — and one of the least effective for long-term retention. Creates fluency and the illusion of competence without building retrieval strength. Use rereading only to fill specific gaps after failed recall, not as primary study.

Highlighting and Underlining

Passive selection of text without retrieval. May help focus attention during a first read but does not improve delayed test performance. If you highlight, follow immediately with a self-test on highlighted content.

Summarization

Writing summaries can help if done from memory (functionally becoming active recall). Summaries written while looking at the source — copying and reorganizing — show inconsistent benefits in research.

Keyword Mnemonic (Without Spacing)

The keyword method alone, without spaced retrieval, produces fragile memory. Mnemonics encode quickly but require review schedules to maintain.

Imagery for Text

Creating mental images while reading prose shows mixed results. More effective when combined with structured mnemonic systems (memory palaces) than as a standalone strategy.

Utility Rating	Technique	Verdict
High	Practice testing / active recall	Core strategy — use daily
High	Distributed practice / spacing	Core strategy — schedule all reviews
High	Interleaved practice	Core strategy — mix topics each session
Moderate	Elaborative interrogation, self-explanation	Use for conceptual material
Moderate	Mnemonics, dual coding	Use for facts, lists, visuals
Low	Rereading, highlighting, passive summarization	Avoid as primary methods

How to Combine Techniques Into a Study System

The highest-performing study systems layer techniques rather than choosing one. Here is a research-backed stack:

1. Initial exposure — read or watch new material once with full attention
2. Encode — use mnemonics, chunking, or dual coding for difficult items
3. Retrieve — close sources; blank-page recall or flashcards (active recall)
4. Space — schedule reviews at 1, 3, 7, 14, and 30 days (spaced repetition)
5. Interleave — mix topics in each session rather than blocking
6. Self-explain — explain concepts aloud or teach them to verify understanding

This stack addresses encoding, retrieval, timing, discrimination, and comprehension — the five levers research identifies as most important.

Best Techniques by Learning Goal

Memorizing Facts and Terms

Active recall + spaced repetition + mnemonics. Flashcards with question-answer format. Memory palace for ordered sequences.

Understanding Concepts

Self-explanation + elaborative interrogation + practice testing with application-level questions. Feynman Technique for hardest concepts.

Exam Preparation

Practice testing with past papers + spaced review schedule + interleaved topic mixing. Simulate exam conditions in final week.

Long-Term Professional Knowledge

Spaced repetition with SRS software + monthly deck audits + case-based retrieval questions. Retention target measured in years.

Language Learning

Keyword mnemonics + spaced flashcards + oral production (not just recognition). Interleave vocabulary themes within sessions.

Best Techniques by Learner Type

High School and Undergraduate Students

Start with active recall and spacing — highest return for effort. Replace highlighting with flashcard creation. Add interleaving once basics are habit.

Medical and Law Students

High-volume retrieval with SRS + case-based questions + memory palaces for ordered sequences (anatomy, legal procedures). Cap new cards at 10–15 daily.

Adult Learners (Limited Time)

10-minute daily spaced review sessions. Micro-retrieval during commutes. One encoding method matched to material type. Consistency over marathon sessions.

Older Adults

Research confirms the testing effect and spacing effect hold across age groups (Carpenter et al., 2012). Use clear flashcard questions, longer initial spacing gaps if needed, and oral retrieval to engage multiple pathways.

7-Day Implementation Plan

Transition from passive to evidence-based studying in one week:

• Day 1: Audit current habits. Log how much time you spend rereading vs. testing yourself.
• Day 2: Create 20 flashcards from current material. Review with retrieval only.
• Day 3: Replace one rereading session with blank-page recall. Compare confidence vs. actual recall.
• Day 4: Schedule spaced reviews for all cards (Day 4, 6, 10, 17).
• Day 5: Interleave two topics in one session instead of blocking.
• Day 6: Self-explain one difficult concept aloud for 3 minutes. Record and review gaps.
• Day 7: Full practice test under timed conditions. Identify weak areas for next week's encoding.

Common Mistakes When Applying Research

• Using high-utility techniques passively — flipping flashcards without generating answers first defeats the purpose
• Spacing without retrieval — rereading on a schedule is not spaced repetition; you must retrieve
• Abandoning interleaving because it feels hard — difficulty during study predicts better delayed performance
• Collecting techniques without building habits — one method done daily beats five methods done once
• Ignoring sleep and stress — no technique compensates for poor consolidation conditions

Practical Exercises You Can Do Today

Exercise 1: The Technique Audit (15 Minutes)

List every study method you used last week. Classify each as high, moderate, or low utility using the table above. Calculate what percentage of time went to high-utility methods. Target: shift to 70%+ high-utility time within two weeks.

Exercise 2: The Research Stack Session (45 Minutes)

1. Read new material once (10 min)
2. Create 10 flashcards (10 min)
3. Retrieve all 10 without notes — 3 rounds (15 min)
4. Schedule reviews on calendar (2 min)
5. Mix 5 problems from this topic with 5 from a previous topic (8 min)

Exercise 3: Problemory Tool Integration

Practice high-utility techniques with Problemory tools:

• Flashcards — active recall + spacing
• Memory Palace Trainer — mnemonic encoding for ordered lists
• Mnemonic Generator — keyword and acronym creation
• Score Tracker — log retrieval accuracy over spaced sessions

FAQ

What are the best study techniques according to science?

The three highest-utility techniques are practice testing (active recall), distributed practice (spaced repetition), and interleaved practice. Dunlosky et al. (2013) rated these as having the strongest evidence across learning conditions, student types, and outcomes.

Is highlighting an effective study technique?

No. Highlighting is ranked low utility because it involves passive selection without retrieval. It may help during initial reading but does not improve performance on delayed tests. Follow highlighting immediately with self-testing if you use it.

Is rereading a good way to study?

Rereading is the most common study method and one of the least effective for long-term retention. It creates familiarity without building recall ability. Use rereading only to fill gaps after failed retrieval attempts.

How do I combine active recall and spaced repetition?

Active recall is what you do (retrieve from memory); spaced repetition is when you do it (at expanding intervals). Create flashcards, test yourself on Day 1, then review the same cards on Day 2, 4, 7, and 14. See our guides on active recall and spaced repetition.

What is interleaved practice?

Mixing different topics or problem types within one study session instead of studying one topic to completion before moving on. It feels harder but improves your ability to select the right approach on exams.

Do these techniques work for all subjects?

Practice testing and spacing work across virtually all subjects and age groups. Interleaving works best when topics are related but distinct (similar enough to confuse, different enough to require discrimination). Mnemonics work best for discrete, ordered information.

How long before I see results?

Most students notice improved recall within the first week of consistent active recall. Spacing benefits appear on delayed tests (one week or more). Interleaving benefits often appear after 2–3 mixed sessions when the initial discomfort subsides.

Key Takeaways

1. Three techniques have the strongest evidence: active recall, spaced repetition, and interleaved practice
2. Rereading and highlighting are popular but ranked low utility — replace them with retrieval
3. Moderate-utility methods (mnemonics, self-explanation) work best combined with high-utility core strategies
4. The best study system layers encoding, retrieval, spacing, and interleaving — not one technique alone
5. Difficulty during study is a signal the technique is working — not a reason to switch back to rereading
6. Start with one high-utility habit daily before adding complexity
7. Track retrieval accuracy over time to verify the system is producing real gains

Conclusion

Science has already answered the question most students never ask: what actually works? The answer is not more hours — it is better methods. Build your study system around practice testing, spaced repetition, and interleaved practice. Use mnemonics and self-explanation where they fit. Retire rereading and highlighting as primary strategies.

Start tomorrow with 20 flashcards and a review calendar. Within one week, you will have more reliable knowledge than most classmates accumulate in a month of passive review.