Most students revise by rereading their notes. It feels productive: the page looks familiar, so it feels known. But familiarity is not the same as being able to produce an answer in an exam, and memory research has been clear about the difference for decades.
Producing beats reviewing
In 1978, psychologists Norman Slamecka and Peter Graf showed that people remember words they generate themselves better than words they simply read. This became known as the generation effect. Later, Henry Roediger and Jeffrey Karpicke showed that practising retrieval, by testing yourself, produces better long-term retention than spending the same time restudying. This is called the testing effect.
The common thread is effort of the right kind. When you produce information yourself, you strengthen the route your brain uses to get it back out, and that's exactly what an exam asks for.
Where typing fits
Typing a sentence forces you to process it word by word, in order. You can't skim it. That alone makes it more active than reading. But typing can also go wrong: a widely cited 2014 study by Pam Mueller and Daniel Oppenheimer found that students who typed lecture notes word for word did worse on conceptual questions than students who wrote by hand, because typing let them transcribe without thinking. Later replications found the difference smaller than first reported, but the lesson stands: copying on autopilot doesn't build understanding.
Typing that makes you think
The fix is to stop copying and start recalling. That's the idea behind Type to Study's two passes:
- Copy pass: type the lesson once, slowly enough to understand each sentence. Key terms are highlighted.
- Recall pass: type it again with the key terms hidden. Now you have to produce them from memory, which is retrieval practice.
- Exam answers: type the model answer to a long question until you can write it without looking.
The first pass gives you the material; the second makes you retrieve it. Together they turn typing from transcription into practice.
A simple routine
- Read the lesson once, with the diagram beside it.
- Type it in Copy mode.
- Later the same day, do the recall pass.
- Review the lesson's flashcards over the following days.
- Before the exam, take a graded mock exam and revise what it flags.
Typing won't replace thinking, but used this way it gives your thinking a structure, and it leaves you with a record of your speed and accuracy as you improve.