The purpose of this research is to investigate how the types of speaking test affect learning. In this study, two types of tests which are mostly used in junior high schools, a) dialogue tests and b) monologue tests, were applied and compared in term of their effect on learning. Eighty junior high school students participated. For data collection, the triangulation method (Denzin, 1978) was applied. This involved using a) a speaking strategy questionnaire, b) a free-writing method questionnaire, and c) a semi-structured interview. For data analysis, Rasch model was applied for analyzing the speaking strategy questionnaire. Rasch model was a good way for undimentionality analysis. KJ method was applied for analyzing a free-writing method questionnaire and a semi-structured interview. The results were discussed in terms of not only the testing researcher, but also of a junior high school teacher of English who really wants to enhance the students’ English ability.