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IASAS Cultural Convention conducts a Lincoln-Douglas form of debate. Lincoln-Douglas (LD), named after the seven famous debates conducted in the United States in 1858, debates about a question of VALUE rather than a policy. For this reason, LD is often referred to as Value Debate. Teams are prepared to debate either on the affirmative or the negative side.

There are five preliminary rounds with each team debating as the affirmative and the negative two or three times. Teams are then selected for the semi-finals on the basis of win-loss records. The winners of the semi-finals will advance to the final round. All of the finalists and semifinalists receive medals, while the championship team is awarded the IASAS debate traveling plaque. All four finalists receive medals.