Potential Vocabulary Size
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The Potential Vocabulary Size (PVS) score is a modified version of the TTR (Type Token Ratio), and as such, also corresponds to an individual’s vocabulary size. As sampling size can introduce bias into the TTR, numerous variations have been proposed to replace the conventional indicator.We analyzed the PVS score of each individual, which was calculated using the extrapolation of the number of types in their narrative samples.PVS cannot be estimated directly. However, there is a simulation method to assume the size of vocabulary as follows: Assuming a PVS value is N, we can obtain the word frequency starting from the rank 1, where f(1,N) to the rank N, where f(N,N). The token would be Σe when f (1). Above brings us a set of type, token, and PVS. This data set consists of a set of Type, Token and PVS.<br>
