type–token ratio

type–token ratio (forhold mellom antall forskjellige ord i en tekst og det totale antall ord): a measure of vocabulary richness in a text, i.e. the relationship between the total number of words in a text (=number of tokens) and the number of different words (=types) in the text. The type-token ratio is arrived at by dividing the number of types by the number of tokens and then multiplying by 100.Ahigh figure in the type-token ratio indicates rich and varied vocabulary.