sentences:  The study reported that exposure to violence and trauma-related distress in young children were associated with substantial decrements in IQ and reading achievement.Exposure to Violence or Trauma lead to a 7.5-point (SD, 0.5) decrement in IQ and a 9.8-point (SD, 0.66) decrement in reading achievement.Violence may have a negative impact on IQ, or IQ may be protective against violence.