AbstractThe focus of this research is to see if one_s cultural factors do influence their performance in answering items in an intelligence test done in one of the public universities in Malaysia. It is an instrument used to measure one_s intelligence level and it is designed based on the Raven Standard Progressive Matrices _ Plus Version and Mill Vocabulary. This is a quantitative study where the participants were selected using simple random sampling method. 773 students from one of the public universities in Malaysia, of different ethnic backgrounds (545 Malays, 228 non-Malays) from eight faculties have taken this test. The data obtained was analysed using Winsteps version 3.64.2, and in the 88 vocabulary items (open ended and multiple-choice questions), race-related DIF was found in a number of items. It could be concluded that cultural factors do influence the students_ ability in answering the intelligence test, which means that elements of bias due to incompatible cultural factors betwe.....