Definition
Desirable difficulties are learning conditions that feel harder in the moment but produce stronger, more durable, more flexible learning than easy conditions.
Why it matters
Choosing difficulties on purpose lets learners exploit struggle as a feature rather than avoiding it as a bug.
Scientific basis
Research on spacing, interleaving, varying practice, and testing shows these difficulties consistently improve long-term outcomes even when they slow short-term performance.
How to apply it
- Add spacing, interleaving, and self-testing to study plans on purpose.
- Choose practice material at the edge of current ability, not below it.
- Resist the urge to smooth every difficulty out of the experience.
Common mistakes
- Treating ease as evidence of learning.
- Removing difficulty whenever learners complain.
- Confusing necessary support (scaffolding) with removing all challenge.
Examples
- Mixing problem types within one practice set instead of finishing each type first.
- Quizzing yourself instead of rereading, even when rereading feels easier.
Related concepts
- Spaced Repetition (is an instance of)
Spacing is a paradigmatic desirable difficulty. - Interleaving (is an instance of)
Interleaving is a desirable difficulty. - Varied Practice (is an instance of)
Varied practice is a desirable difficulty.
Where it shows up
Domains: student-learning, programming, professional-skills. Appears in the Productive Struggle & Difficulty cluster alongside 2 other concepts.
Source books
- Make It Stick: Brown, Roediger & McDaniel
Articles that use this concept (2)
- If It Feels Easy, You Probably Aren't Learning: desirable difficulties
- Use Desirable Difficulties: how to use desirable difficulties