Homework can cause tension and conflict in the home as well as at school, and can reduce students' family and leisure time. In the survey, failure to complete homework and low grades where homework was a contributing factor was correlated with greater conflict; some students have reported teachers and parents frequently criticizing their work. In the MetLife study, high school students reported spending more time completing homework than performing home tasks. argued that homework can create family conflict and reduce students' quality of life. The authors of , both high school English teachers, reported that their homework disrupted their students' extracurricular activities and responsibilities. However, found that parents were less likely to report homework as a distraction from their children's activities and responsibilities. recommended further empirical study relating to this aspect due to the difference between student and parent observations.