Published Tuesday, 22 November 2011
The details were published in a book entitled Loyal to the Core, which looks into the attitude of the Protestant institution's membership.
A total of 1,500 Orangemen across Northern Ireland were interviewed for the book - which was co-authored by Professor Jonathan Tonge with Professor Jim McAuley and Dr Andrew Mycock, who are both based at the University of Huddersfield.
They found that around 60% of respondents agreed with the contention that "most Roman Catholics are IRA sympathisers".
Meanwhile only 5% would be happy for their children to marry a Catholic.
Professor Tonge described the findings as "depressing" and said some of the views expressed are "outdated".
There's also the paradox that most Orange Order members vote for the DUP, which is sharing power with Sinn Féin at the head of the Executive.
Professor John Tonge
"The Provisional IRA formally called off its campaign in 2005 and Sinn Féin has made its advances since the first ceasefire of the 1990s," he told UTV.
"So it is no longer true to say Sinn Féin and the IRA are inextricably linked."
He added: "It would be interesting to ask the question again in five years time."
The survey also revealed that 87.9% of respondents think Protestants are discriminated against.
Over half agree the Orange Order is anti the Roman Catholic Church, while two-thirds disagree that the republican armed campaign is over.
On the issue of parading, 58% said Orangemen should be allowed to march through nationalist areas with no restrictions - 20% said they should negotiate with residents first, while 86% believed the Parades Commission should be abolished.
The majority of respondents also wish to see Stormont's two largest Unionist parties - the DUP and UUP - join forces.
The book claims to be the first ever comprehensive membership survey of the Orange Order, with interviews from both leaders and grassroots members.
© UTV News