I know it has been done for pre-service teachers (Enochs, Smith & Huinker, 2000) but can not seem to find an article for an in-service version. I had a faculty member give me a copy of an in-service version about 10 or so years ago but had not needed the in-service to use it until now. I found the same version I have online with an October 2002 (http://web.mnstate.edu/trn/TRNweb/mtebi.pdf) date crediting Enochs and Riggs but when I contacted Iris she indicated she had not worked on the METBI. I have found many articles that say they are using the MTEBI with in-service teachers but cite the article for the pre-service validation.