The aims of this study were to evaluate reliability and validity of the Students' Perception of Assessment Questionnaire (SPAQ), to evaluate students' perception on assessment, and to evaluate gender-based, grade-based, and ethnicity-based differences in students' perceptions. The validity and reliability coefficients revealed that the SPAQ was suitable for assessing students' perceptions on five assessment dimensions. The average scale-item mean values for all the scales were less than 3.0, which indicates a need to address these dimensions of assessment at classroom level. The mean value for Student Consultation scale was 1.96 out of 4, indicating a need for special attention in this area. The perceptions of students grouped on the basis of gender and of grade level groups were comparable, but on the basis of ethnic groups were statistically significantly different. Assuming these differences to be real, does it mean that teaching approaches will need to be addressed? Future research in this area is warranted. (Contains 6 tables and 3 figures.)