Generation effect
Memory effect
A memory effect: we remember information better when we produce it ourselves than when we simply read or hear it. It helps learning, and it is one reason we remember our own ideas better than other people's.
In everyday life
A student who fills in the blanks on flashcards remembers more than one who just rereads the complete answers.
Studying for a test, you make up your own example for each rule instead of reading the book's examples, and those rules stick far better than the ones you only read through.
Why your mind does this
Finishing what we start is usually a good strategy, since a brain that quit at every bump would never complete anything. Valuing what we already have, what we built and what we worked for keeps us committed and protects our resources. Losing what we have can hurt more than an equal gain helps, so caution around losses often makes sense.
Its family, in 30 seconds: Finishing what we started
How to spot it
Notice when you're only reading ready-made answers and examples instead of coming up with your own.
What you can do
This effect can work for you: when learning, quiz yourself or explain ideas in your own words instead of rereading them.
Same family: Finishing what we started
SourcesSlamecka & Graf (1978)·Wikipedia