This is to certify that the thesis entitled “Effects of structured output Instruction on Students’ Grammar Accuracy in Writing and Motivation to Learn Grammar”, submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Teaching English as a Foreign Language of Department of English Language and Literature, Bahir Dar University, is a record of original work carried out by me and has never been submitted to this or any other institution to get any other degree or certificates. The assistance and help I received during the course of this investigation have been duly acknowledged