Mostly the researchers use all or some of these research tools as [1] Pre-test [2] Midterm Quiz [3] Post-test [4] Teachers' Classroom Checklist [5] Feedback Questionnaire for their experimental and action researches in ELT and Applied Linguistics. Some of them also apply [6] Cronbach's Alpha to ensure the validity and reliability of the questionnaire and checklist. I would appreciate if you can add something to 'What else can a researcher do for authentic classroom action research?'