The German is Fulham's third manager this season, after Martin Jol and Rene Meulensteen, but the Craven Cottage faithful have seen no change in fortunes since his arrival in February as they remain rooted to the foot of the table.
With 32 games played, Fulham are five points from safety, and Magath believes they need four victories from their remaining six fixtures to avoid dropping into the Championship.
"I think that four wins are enough to stay in the league and, with six outstanding games, we are able to do that," the former Bayern Munich boss said.
"You are not really confident if you are losing games but at the training sessions they are concentrated," he added.
"They are eager to do their job. I don’t think they have given up."
Paul Lambert's men took an early lead in both of those matches before crumbling, and they have failed to find any consistency in the Premier League this season.
Currently sitting 12th, eight points clear of the bottom three, Lambert's men look safe from the threat of relegation, but will be keen to take maximum points on Saturday to kick-start a strong finish to the campaign.
For Villa, Karim El Ahmadi is a doubt with a thigh strain, while long-term absentees Jores Okore (knee), Libor Kozak (broken leg) and Charles N'Zogbia (Achilles) are out.
