The instructor has to establish authority by letting students know that he/she is a subject matter expert. Academic credentials, years of experience in the field and in teaching, and accomplishments related to both his/her field and in education will reassure the students that they will learn from you as the IOR. Knowing some information about your studnets: learning style, oher responsiblities, educational background and work experiences, etc. will better help you develop individual developmental plans as the IOR.
