The following year, Schroeder was named to the under-20 team, the youngest on the team at 17, for the 2008 World Junior Championships in the Czech Republic. He finished second in team scoring and tied for fourth in the tournament behind van Riemsdyk with one goal and seven assists for eight points in seven games. Three months later, Schroeder made his second U18 tournament appearance. Named the player of the game in the American's match against Sweden, he recorded five points in seven games as the Americans earned a bronze medal.