APDA is the American Parliamentary Debate Association. The dominant college parliamentary circuit in the United States, founded in 1981 by Princeton, Yale, Brown, Harvard, and Brandeis. Two teams of two debaters. Impromptu cases, 15 minutes of prep, no internet, no evidence cards. Government picks one motion off a three-motion slate and defines it however they want; Opposition responds. The skill is being well-read enough that you don't need to look anything up, and tight enough on the speech to win the rebuttal.
POIs are allowed after the first minute and before the last minute of every constructive speech (PMC, LOC, MGC, MOC). NOT during rebuttals (LOR, PMR). Standing for a POI offers it; the speaker accepts, rejects, or asks you to wait. Strong APDA debaters take at least one POI per constructive — refusing all of them reads scared. Good POIs aren't rhetorical jabs; they pre-empt the next speech on the other side, expose a link gap in the case, or force the speaker to commit to a position they'd rather leave fuzzy.
APDA (American Parliamentary Debate Association) is the dominant college parliamentary debate circuit in the United States. Two teams of two debaters, impromptu cases, 15 minutes of prep, no internet, no evidence cards. The Government picks the case from a three-motion slate provided by the tournament; Opposition responds. Founded in 1981 between Princeton, Yale, Brown, Harvard, and Brandeis, APDA now hosts roughly 40-50 active university teams across the Northeast plus a handful of national schools.
Six speeches total. PMC (Prime Minister Constructive) opens at 7 minutes. LOC (Leader of Opposition Constructive) at 8 minutes. MGC (Member of Government Constructive) at 8 minutes. MOC (Member of Opposition Constructive) at 8 minutes. LOR (Leader of Opposition Rebuttal) at 4 minutes, no new arguments. PMR (Prime Minister Rebuttal) at 5 minutes, last word, no new arguments except direct responses to MOC/LOR. Total round runs about 45 minutes including prep.
APDA is two-team (Gov vs Opp); BP is four-team. APDA gives the Government team case-choice — Gov picks one motion off a three-motion slate, then defines it however they want. BP gives one fixed motion to all four teams with limited definitional freedom. APDA prep is 15 minutes; BP prep is also 15 minutes but applies to a fixed motion. APDA rewards case construction creativity; BP rewards extension density and bench positioning.
Prime Minister Rebuttal. Five minutes. The last speech of the round. The PM returns to weigh the round, collapse to the strongest arguments, and write the judge's ballot. No new arguments allowed except direct responses to the LOR or MOC. The PMR is usually where rounds are won or lost — it's the only speech that gets to respond to the LOR's collapse without giving the opposition another chance to rebuild.
Yes, but with limits. Prep notes you wrote during the 15-minute prep period are fine. Some tournaments allow a printed thesaurus or atlas; most don't. No laptops, no phones, no internet during prep or in-round. No prepared case files brought from home. The format is impromptu by design — the skill is being well-read enough that you don't need to look anything up.
POIs are allowed after the first minute and before the last minute of every constructive speech (PMC, LOC, MGC, MOC). Not during rebuttals (LOR, PMR). Standing for a POI offers it; the speaker accepts, rejects, or asks you to wait. Take at least one POI per constructive if offered — refusing all of them reads scared. Strong POIs aren't gotcha-asks; they pre-empt the next speech or expose a specific link gap.
A tight case is one where the Government narrows the motion to a specific actor, scenario, or time-bound proposition — "This House, as the U.S. Senate Judiciary Committee in 2026, would adopt term limits for federal judges." Tight cases trade breadth of debate ground for a sharper, more winnable clash. Opposition can challenge tight cases as "squirrels" (unreasonably narrow interpretations) or accept the framing and engage substantively. Most APDA judges will tolerate a tight case as long as Opposition has reasonable ground to engage.
Both are American college parliamentary circuits but they diverged stylistically. APDA stays closer to the original impromptu-case tradition: Government picks the motion, no evidence, tighter speeches, the PMR is the structural pivot. NPDA (National Parliamentary Debate Association, west-coast-centered) has absorbed more Policy-debate influences: prepared evidence is sometimes tolerated, kritiks are common, theory shells are run more freely, and speech delivery is faster. APDA judges generally penalize NPDA-style theory and kritiks.
The hardest thing about practicing APDA solo is that the format depends on impromptu prep against unknown cases. Drilling the PMR, building case files for common motion areas, and stress-testing your framework against a partner who plays opposition are all parts that translate to solo practice. The AI on Debate AI plays any of the four seats: PM, LO, MG, MO. It picks one of three motions, defines the case, and runs the full round including LOR and PMR. Format-accurate — no fabricated cards, real APDA vocabulary, PMR collapse structure.
Short guides on the moves that win specific APDA speeches.
Pick your seat: PM, LO, MG, MO. The AI plays the other three at the level you set. Impromptu cases, 15-minute prep, full six-speech rounds.
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