The article discusses the study which applies the Johari Window model during the teacher self-assessment process to identify the development needs of teachers in the United States. Staff development programs are successful when the outcomes being fostered are relevant to the teachers' needs.
Iwanicki, E. F. and McEachern, L. (1984). Using teacher self-assessment to identify staff development needs. Journal of Teacher Education, 35(2), 38-41. doi: 10.1177/002248718403500209