Main Article Content
This study to investigate experiences of pre service teachers about investigating factors that affect students’ speaking proficiency in Thailand. The participants of this research were two students of seventh semester who had completely conducted pre service teachers’ teaching experience in Thailand for about five months. They were Indonesian students of one private university in Bogor. The result of this study revealed that there were three factors that affect students’ speaking proficiency. Those were cognitive, linguistic, and affective factor. And also the teacher strategies had become one of the factors that students’ speaking proficiency.