I am planning to measure teacher stress in my research. One valid and reliable instrument I believe I have found is Teacher Stress Inventory by Michael J. Fimian (1984).
Article The development of an instrument to measure occupational str...
I was wondering if this measure/instrument is in the public domain and can be used just by citing the author and publication or should it be purchased?
Moreover, where can I have access to this questionnaire?
Best,