Keith, a psychologist in Centervale, USA, is tasked with assessing an 8-year-old boy named Dat for potential learning disabilities, while considering ethical implications related to cultural and language differences, as Dat speaks Vietnamese at home but English at school. Key ethical issues include the influence of Dat's cultural background on assessment results and the need for appropriate accommodations, given Keith's lack of proficiency in Vietnamese. The assessment outcomes may significantly affect Dat's educational placement and support services moving forward.