Why does graff and Anderson questions ender seven days after his battle?

Graff and Anderson question Ender seven days after his battle to evaluate his mental state and assess the impact of the intense training and combat experience he has undergone. They are concerned about his emotional and psychological well-being, as the weight of his actions and the responsibility of leadership in war can lead to significant trauma. This period allows them to analyze his reactions and determine if he is fit for further responsibilities or if he needs support. Ultimately, it reflects their interest in understanding the long-term consequences of the pressure placed on young soldiers like Ender.