What caused the massive increase in voter participation in the 1828 election?

The repeal of property ownership requirements for voting caused the massive increase in voter participation in the 1828 election.

Answer: The use of competent voters.

Explanation: What caused the massive increase in voter participation in the 1828 elections was the use of competent voters who had the ability to choose between two candidates from political parties. This was a fundamental factor that led to the number of voters multiplied significantly.