The result was the 12th Amendment, approved in Congress on December 9, 1803, and ratified on June 15, 1804, in time for the new process to be in place for the 1804 election, With the 12th, Electors are directed to vote for a President and for a Vice President rather than for two choices for President.
The word that comes in the blank is "behaviorism".
Behaviorism refers to a learning theory that exclusively spotlights on equitably behaviors that are observable and rebates any free exercises of the psyche or mind. Behavior scholars characterize learning as just the securing of new conduct in view of ecological conditions.