The study found that no gender differences in the frequency of victimization could be detected. It noted that differences by grade, body mass index category, academic performance, depressive symptoms, suicidal thoughts and actions, and feelings of safety were statistically significant, although the magnitude of the differences, as measured by effect sizes, were generally small. The study provides evidence that victimization by bullying occurs in high school, and that it occurs at similar rates for males and females. Ninth grade was a time noted to have an elevated frequency of occurrence. Racial and ethnic differences were detected, but explanation for those differences was noted to be lacking. Although effect sizes were small, the study recommends that the importance of protecting students not be discounted. The study also recommended that educators at the secondary level consider ways to reduce this harmful behavior. The study analyzed data on victimization by bullying and harassment on school property in a large, diverse, random sample of high school students in Arizona. The data was from the 2005 Youth Risk Behavior Survey (YRBS), and consisted of 3,307 Arizona students in grades 9 through 12. The YRBS is a component of the Center for Disease Control’s program to monitor health risk behaviors among youths. Tables, figures, references