I want to measure the quality of speech: is it higher level/lower level (vocabulary grammar etc.) and also the understandability of the speech, i.e. is the teacher using language above a student's head?)
The Flesch Kincaid readability test is a measurement of a written document's readability (which really is a measurement of understandability). There are numerous methods of measuring written text's readability, but processing spoken text is different from written text. Is there a similar way to measure spoken text for understandability? I have transcribed (typed) dialogue.
P.S. I've seen the Flesch Kincaid applied to speech, including President Obama's speeches, and used to determine the quality of the language used, but it seems inappropriate to use a readability measurement for spoken text as well as using readability for measuring quality.