"The mood in the dressing room is fine," Davey told the club's official website. "We are professionals and we know that everything is still in our hands. We have four games to go and it is for us to lose - we know that our squad is good enough to stay in the division.
"Reading are a good side with quality in their squad. They have had some excellent results through the season but teams have gone there and won and drawn."
The Royals won by a single goal at Oakwell earlier in the campaign, but Davey will be using the positives from that display this time around.
"We performed very, very well against them at our place," Davey added. "We have to take heart from that and also make sure we want it more than them. We need everybody to perform to the best of their ability and if they do that then I'm sure we can get the right result."