In psychology, the transposed letter effect is a test of how a word is processed when two letters within the word are switched. The phenomenon takes place when two letters in a word (typically called a base word) switch positions to create a new string of letters that form a new, non-word (typically called a transposed letter non-word or TL non-word). It is a form of priming (psychology) because the transposed letter non-word is able to activate the lexical representation of its base word. A non-word that is created by transposing letters in a base word is significantly more effective at being...