Scientists are planning to stage a mass speed dating experiment to discover whether opposites really do attract.
Volunteers are wanted for the speed-dating experiment
They are seeking 200 people to take part in the event, which will be part of this year's Edinburgh International Science Festival in April.
The study is being carried out under the gaze of Professor Richard Wiseman of the University of Hertfordshire.
"This is the first time that speed dating has been used to assess the psychology of compatibility," he said.
"People often believe that they are good at predicting what types of people will get on with one another, and it will be interesting to see if they are correct."
The volunteers will be asked to complete a personality test, take part in a series of five minute meetings with potential suitors, then say how much they liked those they met.
It is hoped the data will show whether people with different personalities get on best, or whether similarity is the secret of success.
The festival takes place between 5 and 16 April in the Scottish capital.