The result was the Magpies' worst home defeat in 87 years and it leaves them agonisingly close to the relegation zone as the season draws to a close.
With the team languishing in the lower echelons of the table, there have been calls for Pardew to be dismissed, but the 51-year-old is untroubled by speculation about his future and is only concerned with guiding Newcastle to safety.
|9/1||Newcastle are 9/1 with BetVictor to be relegated
Newcastle currently lie in 16th place, just five points above the drop - though Wigan have a game in hand on the Magpies - and Pardew has backed his side to find form and avoid the drop.
"I've got to make sure I put things right," he continued. "We've got to show we've got the fight for this because I think a lot of people will look at us and think we've got a great chance of being relegated. We've got to prove them wrong but I genuinely believe we've got enough quality to get the points we need."
Newcastle's worrying slide has been attributed to the influx of French-speaking Ligue 1 stars on Tyneside, but Pardew, forced to use a translator, has rejected notions that he has trouble getting his message across.
"I don't think the language barrier is so much of a problem as the lack of experience in certain scenarios," Pardew added.
"A lot of those players will never have been beaten 3-0 at home, never mind 6-0. I think that showed; we became ragged, some of our play was naive and disorganised."