Why You Should Vary Your Study Techniques
# Why You Should Vary Your Study Techniques
Most students find a study method that seems to work and stick with it. They reread their notes before every exam. Or they make flashcards for everything. Or they rewrite their notes in a different color. Once a method feels comfortable, there is little incentive to change.
But comfort and effectiveness are not the same thing. Research on learning suggests that varying your study techniques - even when each individual technique is effective on its own - produces better outcomes than relying on a single approach.
The Research on Varied Practice
The principle of varied practice has been studied extensively in motor learning, where it is sometimes called the variability of practice hypothesis. Schmidt and Bjork (1992) showed that practicing a skill in varied conditions produces slower initial learning but better transfer and retention than practicing under constant conditions.
This principle extends to cognitive learning. A study by Kornell and Bjork (2008) demonstrated that studying different types of problems interleaved together produced better learning than studying each type in blocks, even though students perceived blocked practice as more effective.
The underlying mechanism is that varied practice forces your brain to repeatedly reconstruct mental representations from different angles. Each technique creates a slightly different encoding of the material, and these overlapping but distinct memory traces create a richer, more retrievable network of associations.
Why Single-Method Study Creates Blind Spots
When you study using only one technique, you develop what you might call "method-specific fluency." You become very good at processing information in that one particular way, but that fluency does not necessarily transfer to how the exam will test you.
For example, if you only study by rereading your notes, you develop strong recognition memory. You can look at a concept and say, "Yes, I know that." But recognition is not the same as recall, and most exams test recall - your ability to produce the information, not just recognize it.
If you only study with flashcards, you develop strong cue-response associations. You see the front of the card and produce the back. But this isolated retrieval may not help when an exam question requires you to connect multiple concepts or apply knowledge to a novel scenario.
If you only study by solving practice problems, you develop procedural fluency but may not build the conceptual understanding needed to handle problems that differ from your practice set.
Each method has strengths and blind spots. Using multiple methods covers more of the cognitive territory that exams assess.
How to Build Technique Variety Into Your Studying
The Rotation Framework
A simple approach is to rotate through three to four different techniques during each study session. Spend roughly equal time on each. Here is an example rotation:
- Active recall (15-20 minutes): Close your notes and write down everything you remember about the topic. Check your notes afterward to identify gaps.
- Practice problems (15-20 minutes): Work through problems or questions that require application of the material.
- Teaching or explanation (10-15 minutes): Explain the material out loud as if teaching it to someone else. Notice where your explanation breaks down.
- Connection-building (10-15 minutes): Draw concept maps or write about how the current topic connects to previous topics in the course.
This rotation ensures you are encoding the material through multiple pathways - recall, application, verbal explanation, and relational thinking - within a single study session.
Match Techniques to Material Type
Different types of material benefit from different techniques. Here is a rough guide:
Factual information (dates, names, definitions): Flashcards with spaced repetition, the keyword mnemonic method, and self-testing work well.
Conceptual understanding (theories, principles, models): Teaching the material to someone else, elaborative interrogation (asking "why" and "how"), and concept mapping are effective.
Procedural knowledge (problem-solving methods, lab techniques): Worked examples, practice problems with varied difficulty, and self-explanation of each step are most effective.
Application and transfer (using knowledge in new contexts): Case studies, novel problems, and interleaved practice with different problem types build transfer ability.
Most courses require all four types of knowledge, which means the most effective study plan includes techniques targeting each type.
The Interleaving Approach
Instead of studying one topic thoroughly before moving to the next (blocked practice), mix topics within a study session (interleaved practice). Research by Rohrer and Taylor (2007) showed that interleaving improved math learning by 43% on a delayed test compared to blocked practice.
Interleaving works because switching between topics forces you to identify which approach or concept applies to each problem. This discrimination practice is exactly what exams require - you need to figure out which concept is relevant before you can apply it.
A practical way to implement interleaving is to study three topics in a session by alternating between them every 15-20 minutes rather than spending 45-60 minutes on each one sequentially.
Change Your Output Format
If you normally process information by reading, try producing information instead. If you normally write, try speaking. The change in output format forces different cognitive processing.
- If you read your notes, try drawing the concepts as diagrams.
- If you make written summaries, try recording verbal explanations.
- If you solve problems on paper, try explaining your solution process out loud before writing anything.
- If you study alone, try explaining the material to a study partner.
Each format change creates a new encoding pathway that strengthens your overall representation of the material.
Overcoming the Discomfort of Variety
Varying your study techniques will feel less comfortable than sticking with your usual method. This is expected and does not mean it is not working.
When you use a familiar technique, the material feels accessible and learning seems smooth. When you switch to an unfamiliar technique, the material feels harder and progress seems slower. Bjork and Bjork (2011) describe this as the difference between performance during learning and actual learning. Conditions that make performance smooth during study often produce weaker long-term learning.
The discomfort you feel when switching techniques is a form of desirable difficulty - the same principle that makes spacing and interleaving effective. The additional effort required to process material through a new lens is precisely what strengthens the memory.
A Realistic Study Plan
You do not need to use every technique every session. Start with this approach:
- Identify two or three techniques you currently use.
- Add one new technique to your rotation each week.
- For each study session, use at least two different techniques.
- Periodically assess which techniques feel the hardest - those are likely the ones producing the most learning.
The goal is not to maximize the number of techniques but to ensure that you are encoding material in multiple ways. Even adding one unfamiliar method to your existing routine can meaningfully improve your learning outcomes.
The students who retain the most and perform the best are not the ones with the single perfect study method. They are the ones who approach their material from multiple angles, building a robust, flexible understanding that holds up regardless of how the exam tests them.