Status | Completely developed test. |
Goal | Diagnostic and comparative evaluation of the intelligibility of single initial consonants. |
Languages | Originally English [Voiers et al. (1975), Voiers (1983)], adapted (at least) to Dutch [Steeneken (1982)], and French [Peckels & Rossi (1973)]. |
Items | Fixed set of 192 meaningful CVC-words. Examples: dune and tune. The Dutch version has 384 stimulus words from which different lists of 192 stimulus words can be composed. |
Procedure | Closed response identification among two meaningful alternatives differing by a single phonetic feature in the initial consonant. Both alternatives are presented as a stimulus, so both dune and tune are presented with the response alternatives dune and tune. Six contrasts are represented, namely voicing , nasality , sustention , sibilation , graveness , and compactness . Each contrast is included 32 times in the test, combined with 8 different vowels. |
Time | With an interstimulus interval of 3 sec, about 15 min per synthesiser. |
Analysis | Intelligibility is expressed as the percentage correct initial consonants per contrast and for all initial consonants together. The percentages are corrected for chance. |