Hodgson drafted the Norway international centre-half into Craven Cottage during the January transfer window in a bid to arrest the club's slide towards the relegation zone.
Hangeland played in the Viking FK side which Hodgson saved from relegation from the Norwegian top-flight back in 2004 and the defender was left in no doubt as to why they eventually survived.
"He's doing the same thing here so far and I hope we will see the same result," he told the club's official website.
"It looks exactly the same. He's working really hard on the important things like the shape of the team and the way we defend, attack and keep everyone in good positions.
"There are signs when we're working in the sessions that we're moving in the direction he wants us to move. It's probably getting better with every day."