Rand兰德：2023年美国教师小组调查结果：教师遭遇校园暴力和禁闭训练（英文版）

Violent incidents, such as shootings, and threats of such violence, have become relatively common occurrences in kindergarten through grade 12 (K–12) schools across the United States. One common way that schools help their staff and students train for the possibility of an active shooter or other threats is by conducting practice drills. The prevalence of these drills — combined with the mixed results of how these drills affect staff and students' feelings of preparedness, safety, fear, a