言语流畅度

Verbal fluency measures how quickly you retrieve words from semantic memory.

Category fluency (animals, fruits) probes semantic clustering. Letter fluency (words starting with A) probes phonological retrieval.

The typical adult produces 11-13 letter-cued words in 60 seconds. Above 20 is exceptional.

Fluency is a sensitive early marker of neurodegenerative disease, which is why it appears in clinical batteries.

Each test is constructed using Item Response Theory (IRT) and Classical Test Theory (CTT) to ensure reliable measurement of knowledge and ability across different difficulty levels.

Questions undergo rigorous review including difficulty calibration, discrimination analysis, and distractor effectiveness evaluation to maintain high assessment quality.

1. Read the cue (letter or category).
2. Type words one per line — hit Enter after each.
3. Duplicates are ignored.
4. Don't stall — switch sub-categories when you hit a wall.