On average, more than half of eighth-grade students were classified as “never or almost never” being bullied (60%). Twenty-seven percent of students were classified as being bullied “about monthly” and the remaining 13 percent of students were classified as being bullied “about weekly.” Although there is variation across individual countries, 50 percent or more of eighth-grade students in most countries were classified as being bullied “never or almost never.” Eight countries had 20 percent or more of students classified as being bullied “about weekly” and 16 countries had less than 10 percent of students in this category.

Average achievement for students in each of the scale categories is presented in Exhibits 6.1.10 and 6.1.11 for mathematics and science, respectively. Students classified as being bullied “never or almost never” had the highest average achievement in both mathematics and science (487 and 488, respectively). Students classified as being bullied “about weekly” had much lower average achievement in both subjects (429 for mathematics and 420 for science). Average achievement for students classified as being bullied “about monthly” was in between: 472 for mathematics and 471 for science.