“…In addition, ‘phonological’ and ‘lexical’ acronyms were balanced in terms of objective printed frequency, bigram frequency and length: First, printed frequency estimates were obtained by running the Google search engine. Specifically, the log transformation of the number of hits returned for each acronym was used as an index of printed frequency (for a similar procedure, see Playfoot & Izura, ). There was no significant difference in printed frequency between ‘phonological’ and ‘lexical’ acronyms (Phonological: M = 5.559, SE = .101; Lexical: M = 5.779, SE = .202; t (38) = −0.972, p = .339).…”