“The scoreline didn't matter to me," he said yesterday as Ghana departed the U.S. for the tournament in Brazil, their morale boosted by Monday’s friendly win in Miami.
"I’m not looking at the scoreline, I’m looking at how best I will prepare my team and how we played individually and as a team.
"If my team had lost by four goals it would maybe help me to look at the mistakes and correct them before the World Cup."
Jordan Ayew scored a hat-trick as the Black Stars played a strong starting eleven and looked slick and crisp in demolishing their fellow World Cup finalists.
“It was a good friendly match," Appiah added. "It was important we put out a good team. Everyone who paid to come in got their money's worth.
"It's fine we won, but we still have some work to do."
Ghana will now seek to transfer that momentum to arguably the toughest group at the World Cup. They start on Monday against the U.S. in Natal but then must play Germany and Portugal.