A word appears on screen. Decide quickly whether it is a real English word or a made-up non-word. Non-words are constructed with valid prefixes and suffixes but invalid roots. Tests morphological awareness and lexical access (Tyler et al., 2000).
Very Easy
20 words, 4s limit, obvious words
Easy
25 words, 3s limit
Medium
30 words, 2.5s limit, some tricky cases
Hard
35 words, 2s limit, more ambiguous
Expert
40 words, 1.5s limit, very tricky cases
Scientific Background
Based on: Morphological Lexical Decision (Tyler et al., 2005; Marslen-Wilson et al., 1994) (Tyler et al., 2005)