🧠Cerebite

Vocabulary Check

Is it a real Spanish word, or did we make it up? 60 quick judgments — this one can't be fooled.

Accuracy score
0%
📖 Self-report test

Why this test can't be fooled

This is a lexical decision test, the method language researchers use (the well-known LexTALE test works this way). Real words and invented ones are mixed, and your score averages two things: how many real words you recognized, and how many fakes you correctly rejected. Say "real" to everything and the fakes drag you straight to 50% — chance level. Your verified word count applies the same logic per frequency band: guessing inflates your false-alarm rate, which is subtracted from every band. Honest skill is the only way up.

Why Spanish fakes are hard to spot

Spanish spelling maps onto sound so consistently that almost any well-formed sequence of letters can be pronounced confidently on sight. That removes the main clue English speakers rely on when judging an unfamiliar word — the feeling that it does not look quite right. In Spanish an invented word looks exactly as right as a real one.

The suffix system compounds the difficulty. Endings like -ción, -mente, -oso and -anza attach so productively that a fake wearing one of them carries all the authority of a real derivation. A convincing invented word here is usually a genuine Spanish root with a genuine Spanish ending that simply never combined.

The method and what it resists

Real and invented words are interleaved, and the score averages two rates: how many real words you accepted and how many fakes you rejected. Saying yes to everything gives every real word and every fake, landing exactly at fifty percent — chance. That is the property that makes this test unfoolable, and it is why the number it reports is lower than a plain checklist would give.

For English speakers there is one more trap worth naming. A Spanish word that resembles an English one is not automatically real, and an invented item shaped like a familiar English word is the most likely of all to be wrongly accepted. Resemblance is the signal the test is measuring against, not evidence.

Answering well

Frequently asked questions

How is this different from the self-report vocabulary test?
The self-report test asks you to check words you know — fast, but it relies on honesty. This check makes you judge every word as real or fake, so over-claiming is punished automatically: accepting fake words lowers both your accuracy score and your verified word count. Take both and compare!
What is a good accuracy score?
50% means pure guessing. Around 60–70% is typical for intermediate learners, 80%+ suggests advanced proficiency, and 90%+ is native-like — those are the ranges reported for LexTALE-style tests in research settings.
Can I get on the leaderboard?
Yes — unlike the self-report test, this score is objective and cheat-resistant, so it feeds a global leaderboard. Submit your accuracy score with a nickname after the check.
How many people speak Spanish worldwide?
Spanish has close to 500 million native speakers — the second-largest native-speaker community in the world after Mandarin Chinese — and roughly 600 million speakers overall across more than 20 countries. That global reach means every word you verify here is usable from Madrid to Mexico City to Buenos Aires.
Do English cognates help me score higher in Spanish?
Often, yes — thousands of Spanish words share Latin roots with English (posible, información, decidir), so educated guesses work surprisingly well. But be careful: the made-up words are designed to look just as plausible, so relying on "it looks familiar" alone will cost you accuracy on the fakes.
How can I raise my Spanish accuracy score over time?
Massive input is the proven route: reading and listening to real Spanish exposes you to words repeatedly in context, which is what makes the real-or-fake judgment instant. Add a frequency-based word list for deliberate study, then come back every few weeks — each retake draws fresh words, so it's a clean measurement.