Chapter 11: Defining and Assessing Learning
1 Overviews
2 Introduction: The One-Time Perfect Shot
Imagine you’re teaching a student to serve a tennis ball for the first time. They try again and again, sending the ball into the net, over the fence, and everywhere but the service box. Then, after dozens of frustrating attempts, they toss the ball perfectly, swing smoothly, and hit a flawless serve right into the corner. It’s a moment of success. But does that one successful attempt mean they have truly learned how to serve?
This question highlights a critical distinction for anyone trying to acquire a new skill. We must learn to separate the immediate act we can see—the Performance—from the lasting change in ability that we can’t see—the Learning.
This is the single most important distinction in skill acquisition. Grasping it will change the way you practice, interpret your results, and ultimately, how quickly you master a skill. Let’s break down these two essential concepts so you can assess your own progress more effectively.
3 Defining Our Terms: Performance vs. Learning
To master a skill, we first have to master the language we use to describe it. “Performance” and “learning” might seem like synonyms, but in motor skill acquisition, they are fundamentally different.
3.1 What is Performance? The Snapshot of a Skill
Performance is the observable, behavioral act of executing a skill at a specific time and in a specific situation. Think of it as a single snapshot. It’s what you do right now. That one perfect tennis serve? That was a performance. That terrible serve that hit the net just before it? That was also a performance.
Because performance is temporary and happens in the moment, it can be influenced by many factors that have nothing to do with your underlying ability. These are called performance variables and include things like:
- Alertness: Are you awake and focused, or groggy?
- Anxiety: Are you performing under pressure in front of a crowd, or relaxed during practice?
- Fatigue: Are you at the beginning of a session with fresh energy, or at the end when you’re exhausted?
- The uniqueness of the setting: Are you in your familiar home gym, or a new, distracting environment?
These variables can make your performance on any given day look much better or worse than your actual skill level.
3.2 What is Learning? A Permanent Change in Your Abilities
Learning is a completely different beast. It is a change in the capability of a person to perform a skill that is relatively permanent and results from practice or experience.
The most important part of this definition is that learning is an internal state that cannot be observed directly. Just as you can’t see “happiness” but can infer it from an observable behavior like a smile, you can’t see “learning” directly. Instead, you must infer that learning has occurred by observing a person’s performance over time and under various conditions.
This means that while a single performance is just a snapshot, learning is like the entire photo album—it tells a much larger story about a change in potential and capability.
3.3 Side-by-Side Comparison
This table synthesizes the key distinctions between these two critical concepts.
Performance Learning Observable behavior Inferred from performance Temporary Relatively permanent May not be due to practice (e.g., luck) Due to practice May be influenced by performance variables Not influenced by performance variables
With these definitions in mind, how can we look at performance and confidently infer that true, lasting learning has actually taken place?
4 The Six Signs of True Learning
Since learning itself is invisible, we have to act like detectives, looking for clues in a person’s performance over time. When true learning occurs, we can typically observe six distinct characteristics.
- Improvement This is the most obvious sign. Your performance of the skill simply gets better. Your tennis serves start landing in the box more often, you can ride your bike for longer distances without falling, or your golf shots land closer to the pin.
- Consistency As learning progresses, your performance becomes less variable. Early on, your tennis serves might be all over the place. With learning, they start to land in a much tighter grouping. Your attempts become more similar to one another, indicating a more stable, underlying skill.
- Stability This is the ability to perform the skill well even when things get tough. Stability means your skill holds up against perturbations—disruptions that can be either internal (like the stress of a game-winning free throw) or external (like a gust of wind during a golf swing). A learned skill is a robust one.
- Persistence True learning lasts. Persistence means your improved skill level endures over increasing periods of time. If you learn to drive a manual car, you should still be able to do it next week, next month, and even next year, long after your initial practice sessions have ended.
- Adaptability This is perhaps the most critical sign of deep learning. Adaptability is the ability to take the skill you’ve practiced and apply it successfully in new or varied situations. Can you serve in a real tennis match after practicing against a wall? Can a physical therapy patient walk confidently in a crowded mall after only practicing in a quiet clinic? This ability to generalize a skill from practice to new contexts, which some researchers call generalizability, is a hallmark of true mastery.
- Reduction in Attention Demand When you first learn a skill, it requires your full concentration. As learning progresses, the skill becomes more automatic and demands less of your conscious attention. You can ride a bike while holding a conversation or drive a car while listening to the radio. This frees up your mental resources for other tasks, like strategy or awareness.
Observing these six characteristics over time gives us the evidence we need to confidently say that performance isn’t just a fluke—it’s the result of real learning.
5 Why Practice Can Be Deceiving
It’s tempting to look at how well you’re doing in a single practice session and conclude that you’ve learned a lot. However, what happens during practice isn’t always an accurate reflection of what’s been stored in long-term memory.
5.1 The Trap of “Practice-Only” Success
As we discussed, performance variables can artificially inflate your success during practice. A perfect example comes from an experiment by Winstein and colleagues, who taught participants a physical therapy skill.
- The Setup: One group received constant, concurrent feedback during practice—they could see a scale in real-time to adjust their performance on every single attempt.
- Practice Performance: This group performed exceptionally well during the practice session. Their performance was nearly flawless.
- The Test: Two days later, all participants were tested without any feedback. The group that had received constant feedback performed the worst of all.
The lesson is clear: their great performance during practice was propped up by a temporary crutch, not a sign of permanent learning. The feedback allowed them to make immediate corrections, but it prevented them from learning to detect and correct their own errors—the very capability they needed when the feedback was removed. It overestimated what they had truly learned.
5.2 Understanding the Frustrating “Plateau”
If you hit a plateau, don’t panic. It’s a normal part of the process, and it almost never means you’ve stopped learning. A performance plateau is a period where you see no improvement after a period of consistent gains, and it’s a characteristic of performance, not learning. Here are a few things that might be happening under the surface:
- Strategy Transition: You might be developing a new, more advanced strategy. Performance can level off or even dip while you transition away from your old method and work to master a better one.
- Fatigue or Motivation: Sometimes a plateau is simply caused by fatigue, a lack of motivation, or a lapse in attention that temporarily depresses your performance.
- Ceiling or Floor Effects: A plateau can happen when the way you measure performance runs out of room. A basketball player can’t exceed 100% on a free-throw drill (a ceiling effect), and a sprinter’s 100m time can only decrease so much (a floor effect). Your performance score may flatline, but the quality and consistency of your skill can still be improving.
So, if you can’t always trust what you see during practice, how do coaches and experts get a true measure of learning?
6 How Coaches and Teachers Really Measure Learning
To get around the problem of misleading practice performance, experts use specific tests. So how do we test for those six signs? While we can observe Improvement and Consistency during practice, the true tests of learning are designed to specifically measure Persistence, Adaptability, and Stability. These aren’t your typical school tests; they are designed to reveal what you can do when the practice supports are removed.
6.1 The Retention Test: Proving It’s Permanent
A Retention Test is simple: you perform the skill you’ve been practicing after a period of no practice. This “retention interval” can be a day, a week, or longer. The purpose is to see if the skill has stuck. Can you still perform at the high level you achieved at the end of practice? This directly measures the characteristic of Persistence and proves that the improvement was relatively permanent.
6.2 The Transfer Test: Proving You Can Adapt
A Transfer Test is designed to measure the crucial characteristic of Adaptability. This test involves asking a learner to perform the skill in a new situation, such as:
- A New Context: A physical therapy patient who practiced walking in a quiet clinic is asked to walk through a busy, unpredictable shopping mall.
- A Novel Variation: A basketball player who practiced shooting free throws is asked to shoot from a slightly different spot on the court.
Crucially, transfer tests are also a coach’s primary tool for assessing a learner’s Stability. By changing the context to include internal perturbations (like emotional stress) or external ones (like environmental obstacles), we can see if the skill holds up under pressure. Passing a transfer test is powerful evidence of deep learning because it shows you haven’t just memorized one specific movement; you have acquired a flexible and robust capability that can be adapted to the demands of the real world.
7 Conclusion: Your Path from Performing to Learning
Understanding the difference between what you can do right now and what you are capable of doing long-term is the foundation of effective skill development. As you continue your own learning journey, make these critical takeaways your new mantra.
- Performance is temporary, learning is permanent. Don’t get too excited by one great attempt or too discouraged by a bad one. Focus on the long-term, lasting change in your capability.
- Look for the six signs. True learning reveals itself over time through consistent improvement, increased consistency, stability under pressure, persistence after a break, adaptability to new situations, and a reduction in how much you have to think about it.
- Stop Measuring Your Practice, Start Testing Your Learning. The goal isn’t to look good during a single training session; it’s to build a skill that holds up when it matters. Intentionally test yourself the next day (retention) and under slightly different, more challenging conditions (transfer). That’s the only scoreboard that counts.
7.1 Frequently Asked Questions
Performance is temporary and observable—it’s what you do in the moment. Learning is a relatively permanent change in your capability to perform, which is internal and must be inferred over time.
No. Learning is an internal neural process. We can only infer that learning has happened by observing consistent changes in performance behavior over time.
Because performance variables (like fatigue, anxiety, or helpful feedback) can temporarily boost or lower your performance. You might perform well during practice because of a “crutch” (like constant feedback) but fail when that crutch is removed.
- Improvement: You get better.
- Consistency: You become less variable.
- Stability: You are less affected by disruptions.
- Persistence: The skill lasts over time.
- Adaptability: You can use the skill in new situations.
- Reduced Attention: The skill becomes automatic.
It is a period where your performance scores stop improving. It does not necessarily mean learning has stopped. You might be fatigued, unmotivated, or your brain might be consolidating a new strategy (transitioning).
It is a test given after a break (retention interval) where you perform the skill exactly as practiced. It measures persistence—did the learning stick?
It is a test where you perform the skill in a new context or variation (e.g., shooting from a different spot, or in a noisy environment). It measures adaptability and stability.
Because true learning isn’t just memorizing a specific movement in a specific room. It’s about acquiring a flexible capability that you can apply whenever and wherever you need it.
8 Test your Knowledge
Take the quiz to test your knowledge of the material in this chapter. At the end of the quiz, you will be given a personalized study plan to help you master the material.