The focus of the study was to explore rates of psychological problems in Vietnamese immigrant children, and examine the rates in comparison with the normative sample. The current study also examined the relationship between self-report and parental-report of symptomatology. This study investigated the relationship between acculturation and the prevalence of behavioral and emotional problems in Vietnamese American children, as related to their own acculturation level and their parent's acculturation level. Finally, this study also looked at the relationship between the parent's acculturation level and his/her perception of the child's behavioral and emotional problems. Results indicated that the Vietnamese immigrant children in this study exhibited significantly higher scores on several behavioral and emotional problems than the children in the normative sample. Results also showed that boys exhibited higher scores than girls on both Externalizing and Internalizing problems subscales. Results did not show a relationship between age group (older vs. younger children) and behavioral and emotional problems. Results indicated a significant relationship between parental-report and self-report. There were significant positive relationships between Vietnamese immigrant children's acculturation level and self-report and parental-report of child behavioral and emotional problems. There also were significant inverse relationships between Vietnamese immigrant parents' acculturation level and the children's report of behavioral and emotional problems as well as the parent's report of child behavioral and emotional problems. Finally, this study showed a significant effect of parent's level of acculturation in combination with child's level of acculturation in contributing to the prediction of the variance in child's Externalizing problems score on the YSR.