According to statistics from UNICEF relating to the period 2001-2007, of girls and women aged 15-49, 28% think that a husband is justified in hitting or beating his wife under certain circumstances.
(UNICEF, 2009, Progress for Children: A report card on child protection, NY: UNICEF www.childinfo.org/files/Progress_for_Children-No.8_EN.pdf)
In a study in 40 schools, involving interviews with 800 students and 288 teachers, 68.5% of students reported having experienced whipping/caning (20.5% in the home and 48% in school); 70.6% said they had experienced beating/fighting. More boys than girls reported being beaten: 47.2% and 40.7% respectively.
(DevTech Systems, Inc. and Centre for Educational Research and Training, 2007, The Safe Schools program: Students and teacher baseline report on school-related gender-based violence in Machinga district, Malawi, USAID)