Contact information cannot be traded during the initial meeting, in order to reduce pressure to accept or reject a suitor to his or her face.
On the other hand, feedback and gratification are delayed as participants must wait a day or two for their results to come in.
The time limit ensures that a participant will not be stuck with a boorish match for very long, and prevents participants from monopolizing one another's time.
Unlike many bars, a speed dating event will, by necessity, be quiet enough for people to talk comfortably. Participants can come alone without feeling out of place; alternatively it is something that women who like to go out in groups can do together.
Because the matching itself happens after the event, people do not feel pressured to select or reject each other in person.
Requirement for each event vary with the organizer.
Specific age range based on gender is a common restriction for events.In a 2012 study, researchers found that activation of specific brain regions while viewing images of opposite-sex speed dating participants was predictive of whether or not a participant would later pursue or reject the viewed participants at an actual speed dating event.Men and women made decisions in a similar manner which incorporated the physical attractiveness and likability of the viewed participants in their evaluation.A 2006 study in Edinburgh, Scotland showed that 45% of the women participants in a speed-dating event and 22% of the men had come to a decision within the first 30 seconds.It also found that dialogue concerning travel resulted in more matches than dialogue about films.Men and women are rotated to meet each other over a series of short "dates" usually lasting from three to eight minutes depending on the organization running the event.