This repository contains the data used to obtain the results shown in the paper "Exploring the form of Italian diminutives: Alternation patterns and constructional schemas", by M. Silvia Micheli and Matteo Pellegrini, published in Constructions and Frames.In the file "Italian_diminutive_datasets.csv", the diminutive and base are given in orthographic and phonological transcription, as well as information on their PoS and (in case of nouns) gender. In the file "Italian_segments.csv", each phonological segment appearing in our data is described in terms of phonological features.