The purpose of this study was to examine the effects self-assessment on kindergarten students learning of high frequency words. The sample consisted of 30 randomly selected kindergarten students. The students were then randomly assigned to a control group or experimental group. The experimental group used self-assessment method to learn high frequency words while the control group used traditional method of assessment to learn high frequency words. The data for this study were collected by using a post-test only equivalent group design. Data were analyzed using independent t-tests at.05 level of significance. The results indicated a significant difference between students who used self-assessment and those who used traditional assessment The students who used self-assessment scored. higher than those who used traditional assessment No significant difference was found between the genders. (Contains 3 tables.)