This study aimed to identify how principals and teachers evaluate the experience of authentic assessment at schools it in Qalqilia’s Governorate and ways to develop it . It also tries to detect if there are statistically
significant differences between the estimates of the sample individuals for this degree, due to the variables: gender, educational qualification, years of experience, school location, Humanitarian teachers or scientific subjects and the type of school .Survey analytical method has been applied in the study by choosing stratified random sample of principals and teachers ( 278 teachers and 33 principals). Two study tools have been used, a questionnaire for teachers and focal groups for principals. The study results showed that the teachers ' assessment of the experience of authentic assessment at schools was moderate but it was low for the principals. And the study results also showed that there are no statistically significant differences in the degree of teachers' assessment of the experience of the authentic assessment in the schools of Qalqilia’s governorate due to the variables mentioned above except years of experience. The study has suggested several recommendations according to the results and the most important one is conducting training sessions for teachers in authentic assessment and its strategies.