School absenteeism and academic achievement: Does the timing of the absence matter?

A large body of research demonstrates that school absenteeism is detrimental to learning, academic achievement and educational outcomes. However, questions remain whether this relationship varies according to the timing and reasons of absenteeism. Using time-stamped administrative school attendance data among 62,841 students enrolled in secondary education, this study examined whether the association between school absenteeism and student's examination results at the end of the school year varies with the timing and reasons of absenteeism. The findings show that unexcused absenteeism, sickness absenteeism and school exclusion all have a negative impact on student's academic achievement. In addition, the findings suggested that unexcused absenteeism is more harmful at the beginning of the school year and at the end of the school year. Sickness absenteeism seems also more harmful at the end of the school year. In the discussion I elaborate on the implications of these findings for policy and practice.