Chapter 5 Key Takeaways: What Makes Learning Stick

The Central Point

The most effective learning techniques are consistently different from — and often opposite to — the techniques students naturally default to. Highlighting, rereading, and restudying feel productive and produce the sensation of competence. Practice testing, spacing, and interleaving feel harder and less satisfying but produce dramatically better long-term retention. This gap between feeling productive and actually being productive is one of the most important things to understand about learning.

Technique by Technique

Practice Testing (Retrieval Practice) The most powerful learning technique supported by evidence. Retrieving information from memory strengthens that memory more than re-studying it. The testing effect: students who self-test retain approximately 50-65% more after one week than students who restudy the same material. The discomfort of trying to recall something you're not sure about is not a sign of failure — it's the mechanism of learning. Forms: flashcards, practice exams, blank-page recall, self-quizzing, teaching.

Distributed Practice (Spaced Repetition) One of the most replicated findings in psychology. Distributing study across time substantially outperforms massing the same study time into one session. The mechanism: reviewing at the edge of forgetting produces the maximum memory-strengthening effect. Cramming produces short-term retention only; spacing produces long-term retention. The minimum viable habit: spend the first ten minutes of each study session retrieving what you covered last session.

Interleaved Practice Mixing problem types or topics during practice produces lower immediate performance but substantially better long-term performance and transfer compared to blocked practice (all of Type A, then all of Type B). The mechanism: interleaving forces you to identify which approach to use before using it — practicing the exact discrimination skill that exams and real-world application require. Blocked practice skips this step.

Elaboration Asking "why?" and "how?" and "what would happen if?" about what you're learning. Connecting new information to existing knowledge through explanation generation. The depth of processing effect: elaboratively encoded information is more durable and more accessible than shallowly processed information. More effective when learners have sufficient background knowledge to generate accurate explanations.

Dual Coding Combining verbal and visual representations of the same information. Two encoding pathways create two retrieval pathways. This is not learning styles — it benefits everyone because everyone has both verbal and visual memory systems. Works best when verbal and visual representations are genuinely complementary: the visual shows what words can't easily convey; the words explain what the visual can't capture.

The Meta-Principle: Desirable Difficulties

All effective learning techniques share a property: they create conditions that make learning harder and slower in the short term while improving retention and transfer in the long term. Robert Bjork's term for these is "desirable difficulties." The word desirable matters — not all difficulties improve learning. What makes a difficulty desirable is that it forces active cognitive engagement (retrieval, discrimination, generation) that produces durable encoding.

The generation effect is a specific desirable difficulty worth remembering: attempting to generate an answer before being given it — even incorrectly — improves subsequent learning of the correct answer.

Dunlosky's Hierarchy — The Quick Reference

Use these: Practice testing, distributed practice, elaborative interrogation, self-explanation, interleaved practice Use sparingly or replace: Summarization, highlighting/underlining, keyword mnemonics, imagery for text, rereading

The Common Thread

Every effective technique requires the learner to actively do something with information rather than passively receive it. Effort is the mechanism of learning, not just a byproduct of it.

One Sentence for Each Idea

• Retrieval practice: Testing yourself beats restudying yourself.
• Spacing: Spread it out; the gap is where the learning happens.
• Interleaving: Mix it up; the identification problem is the learning.
• Elaboration: Ask why until you can explain it to someone who doesn't know it.
• Dual coding: Draw it and say it, because two paths are better than one.
• Desirable difficulties: If studying is always comfortable, you're probably optimizing for the feeling of learning, not learning itself.