| Field origin | Cognitive psychology and education research |
| Most researched strategy | Retrieval practice (self-testing) (Widely replicated across educational research literature) |
| Terms covered in this reference | 12 core learning science concepts |
| Applicable to | All ages and learning contexts |
Why Learning Science Has Its Own Vocabulary
Learning science draws on cognitive psychology, neuroscience, and education research to explain how people acquire, retain, and apply knowledge. Like any specialized field, it has developed precise terms for concepts that everyday language handles loosely. Words like "memory" and "practice" mean something specific in this context — and understanding those specifics changes how you study.
This reference defines the terms you're most likely to encounter when reading about evidence-based study methods. It pairs well with our complete guide to how memory works, which explains the underlying mechanisms behind many of these concepts.
| Field origin | Cognitive psychology and education research |
| Most researched strategy | Retrieval practice (self-testing) (Widely replicated across educational research literature) |
| Terms covered in this reference | 12 core learning science concepts |
| Applicable to | All ages and learning contexts |
Core Terms Defined
The following definitions cover the concepts that appear most frequently in learning science literature and practical study guidance. Each term is explained in plain language, with enough context to show why it matters.
Retrieval Practice
The act of recalling information from memory rather than re-reading it. Research consistently shows that testing yourself on material — through flashcards, practice questions, or free recall — strengthens long-term retention more than passive review.
Spaced Practice
Distributing study sessions across time rather than massing them into a single sitting. Returning to material after intervals — days or weeks later — forces the brain to reconstruct memories, making them more durable.
Interleaving
Mixing different topics or problem types within a single study session instead of completing one topic before moving to the next. Interleaving is less comfortable than blocked practice but tends to produce stronger long-term learning and better ability to distinguish between concepts.
Desirable Difficulty
A term used in learning research to describe study conditions that feel harder in the moment but produce better retention over time. Examples include retrieval practice, interleaving, and spacing. The difficulty is called "desirable" because the struggle itself drives deeper processing.
Metacognition
Thinking about your own thinking — specifically, monitoring what you understand, identifying gaps, and adjusting your approach accordingly. Strong metacognitive skills help learners avoid the common trap of confusing familiarity with genuine understanding.
Elaborative Interrogation
A strategy that involves asking "why" and "how" questions about material rather than simply reading it. Generating explanations in your own words links new information to existing knowledge, strengthening comprehension and recall.
Encoding
The process by which new information is initially taken in and transformed into a form the brain can store. Effective encoding depends on active engagement — paying attention, connecting ideas, and processing meaning rather than surface features.
Cognitive Load
The total mental effort required to process information at a given moment. Working memory has limited capacity, so learning environments and study strategies that reduce unnecessary cognitive load — such as clear organization and avoiding multitasking — tend to support better learning.
Transfer
The ability to apply knowledge or skills learned in one context to a new, different context. Transfer is widely considered the ultimate goal of education, and it is promoted by strategies that emphasize deep understanding over rote memorization.
Growth Mindset
The belief that intelligence and ability can be developed through effort, effective strategies, and guidance from others. Rooted in research by psychologist Carol Dweck, it contrasts with a fixed mindset — the belief that abilities are innate and unchangeable.
Working Memory
The mental workspace where information is temporarily held and manipulated during active thinking. It has a limited capacity and plays a central role in comprehension, problem-solving, and learning new material.
Forgetting Curve
A concept from 19th-century memory researcher Hermann Ebbinghaus describing how quickly newly learned information fades without review. Spaced practice and retrieval practice are the most effective strategies for flattening this curve.
For a deeper look at how these concepts apply to real study routines, see our article on what effective learners do differently. If you're returning to formal study after a break, study skills for adult learners translates many of these ideas into practical strategies for busier schedules.
Familiarity Is Not the Same as Learning
One of the most consistent findings in learning science is that re-reading feels productive but rarely produces durable memory. Material that feels familiar after a second read may not be genuinely encoded. Retrieval practice — closing the book and recalling from memory — is a more reliable signal that learning has actually occurred. Metacognition helps you catch this distinction before a test reveals it.