The Toffees managed an impressive seventh position in the Premier League last term thanks largely to their home record which saw them win 13 of their 19 games at Goodison Park.
However, they won only four games away from home, which is the main reason they could not break into the top six, according to Schneiderlin.
“I think that is what separated us from the top six, our away form,” he told the club’s website.
“If we had won more away games, we would have been in the top six or top five. We need to correct this for next season and know why we are not playing as good away from home.
“If we want to be a team that pushes for the Champions League, we need to win more away from home.”