Bradford bright sparks will have the opportunity to check their intelligence levels when Mensa conducts supervised tests for prospective members.

There are 415 active members in the Bradford district and demand is high from people who want to prove they too have the brains to join the high IQ society.

The session will take place on Saturday, February 9, at the Victoria Hotel in Bradford, when people will have the chance to join the world-renowned society.

Anyone who records an IQ score of 148, which puts them in the top two per cent of the population, is eligible for membership.

Test administrator, Helen Oliver, said: "This session has been added due to high demand in the area.

"We have noticed an increase in enquiries from people in Yorkshire and want to ensure as many as possible are able to take the supervised IQ test."

Mensa Communications manager, Caroline Garbett, warned prospective members, they must book a place, and not just turn up.

"The first step is to take an unsupervised IQ test at home and if the results are promising they can take a longer test at a supervised centre," she said.

"The supervised test is about two hours long and it is quite painful, but for a lot of the members it is the sort of puzzles they enjoy doing, thinking laterally and logically."

Mensa member Joyce Cansfield, of Whiteley Croft Road, Otley, said she would recommend people to have a go at the supervised test.

"I have been a member of Mensa since the 1950s," said the 72-year-old. "I didn't find the test hard because that is the way my mind works."

She added: "I know many of the members around this area are university students and hold regular meetings."

Mensa, founded in 1946, currently has around 28,000 members with more than 2,300 in Yorkshire and the North East region.

The society welcomes people from all walks of life, with the objective of enjoying each other's company and a wide range of social and cultural activities.

Celebrities who have passed the test include Sir Clive Sinclair, Garry Bushell, Carol Vorderman, Sir Jimmy Savile and David Edwards, the teacher who recently scooped the top prize on ITV's Who Wants to be a Millionaire.

More information about Mensa and IQ testing can be found on the society's website - www.mensa.org.uk and anyone interested in taking the supervised test should contact Helen Oliver on freephone 08000 563 672.