Week 11 — Quiz (auto-graded) · Political Participation: Parties, Elections & Voting Systems

Course: Introduction to Political Science (POLS 1) · Silver Oak University (fictional sample) · Prof. Halloran
Objectives tested: Objective 6 — parties and party systems; the four electoral-system families; Duverger's law; seat-allocation math.
Points: 10 (1 each) · Assignment group: Quizzes (10% of grade) · Due: end of Module 11.

This is the human-readable quiz with its vetted answer key and feedback. The import-ready Classic QTI is in F-quiz-week-11-qti.xml (generated by the shared validated script — parses with 10 items, every single-answer item exactly one correct). Fact-and-source-accuracy gate — PASS: the UK's 2024 general election figures (Labour 411/650 seats = 63.2% on 33.7% of the vote; Reform UK 14.3% of the vote → 5 seats = 0.8%), the Duverger's-law attribution (Maurice Duverger, Political Parties, 1951), and the D'Hondt worked-example arithmetic were each verified/re-computed against the record (House of Commons Library, research briefing CBP-10009, and a live Python re-run of the seat math). The Canvas placement block is at the bottom of this file.

Blueprint

No trick questions; distractors target the Week 11 misconceptions named in the lecture outline (plurality vs. majority confused; PR assumed to always mean chaos; Duverger's law treated as a guarantee; seat share vs. vote share conflated; a documented fact and its normative evaluation blurred together).

Questions, key, and feedback

Q1 (MC). Political parties perform several core functions in a democracy. Which of the following is NOT one of the classic functions of political parties?
- A. Aggregating diverse interests into a manageable set of choices for voters
- B. Mobilizing citizens to register and turn out to vote
- C. Providing accountability by giving voters a label to reward or punish at the next election
- D. Fixing the exact number of seats a legislature will contain ✅
Feedback: Parties aggregate, mobilize, and provide accountability — but the total number of seats in a legislature is set by a country's constitution or electoral law, not by parties themselves.

Q2 (MC). Under a plurality / "first past the post" (FPTP) electoral system, a candidate wins a single-member district by:
- A. Winning more votes than any other single candidate, even without a majority ✅
- B. Winning at least 50% plus one of the votes cast, or facing a runoff
- C. Being allocated a seat in proportion to their party's national vote share
- D. Being selected by the party leadership after the vote is counted
Feedback: FPTP requires only a plurality — the most votes among the candidates — not a majority. (B describes majority-runoff; C describes proportional representation.)

Q3 (MC). A system in which, if no candidate wins an outright majority in the first round, the top candidates compete again in a second round is best described as:
- A. List proportional representation
- B. Majority-runoff (two-round) system ✅
- C. Mixed-member proportional (MMP) system
- D. Plurality / first past the post
Feedback: Majority-runoff (a two-round system) guarantees the eventual winner has majority support by holding a second round between the top finishers when nobody clears 50% in round one. (France's presidential elections are the standard example.)

Q4 (Matching). Match each electoral system to the trait that most precisely defines it.
| System | Defining trait |
|---|---|
| Plurality / FPTP | The single candidate with the most votes wins the district, even without a majority |
| Majority-runoff | A second round is held between top candidates if no one wins an outright majority |
| List proportional representation | Seats are allocated to parties roughly in proportion to their share of the vote |
| Mixed-member (MMP) | Voters get two votes; the system combines district seats with compensatory proportional seats |
Feedback: Four families, four distinct mechanisms — memorize the mechanism, not just the name, since real countries mix and adapt these in practice.

Q5 (MC). According to Duverger's law, plurality/FPTP elections in single-member districts tend to produce:
- A. Two-party competition ✅
- B. Multiparty competition
- C. A single-party (dominant-party) system by mathematical necessity
- D. No stable pattern of any kind; the number of parties is unrelated to the electoral system
Feedback: Duverger's law (Maurice Duverger, 1951) proposes that FPTP tends toward two-party competition, through a mechanical effect (third place wins nothing) and a psychological effect (voters avoid "wasting" votes on a candidate who can't win). (PR tends the opposite direction, toward multipartism — B.)

Q6 (True / False). "Duverger's law is best understood as an iron law with no real-world exceptions, since every country using plurality/FPTP elections has exactly two significant parties."
- True
- False ✅
Feedback: False. Duverger's law is a documented tendency, not a guarantee — the United Kingdom, Canada, and India all use FPTP and all have significant third parties or strong regional parties. This very week's UK case study seated Reform UK, the Greens, the SNP, Plaid Cymru, and Northern Ireland parties alongside the top two.

Q7 (MC). Political scientists distinguish two effects by which an electoral system shapes the party system. The MECHANICAL effect refers to:
- A. How the seat-allocation rule itself translates a given set of votes into seats, independent of how anyone behaves ✅
- B. Voters shifting away from a party they sincerely prefer because they believe it cannot win, to avoid "wasting" their vote
- C. Party leaders' private strategy sessions about which voters to target
- D. The legal requirement that ballots be printed in a certain font
Feedback: The mechanical effect is the math itself — how a fixed set of votes converts into seats under a given rule. (B describes the psychological effect — voter behavior that reinforces the mechanical squeeze on smaller parties.)

Q8 (MC — computed item). In the UK's 4 July 2024 general election (House of Commons Library, briefing CBP-10009), Labour won 411 of the House of Commons' 650 seats on 33.7% of the national vote. Which of the following correctly gives Labour's SEAT share (rounded to one decimal place)?
- A. 33.7% — seat share always equals vote share under any electoral system
- B. 63.2% — computed as 411 ÷ 650 × 100 ✅
- C. 50.0% — a bare majority of seats, no more
- D. 80.6% — a supermajority of the chamber
Feedback: 411 ÷ 650 × 100 = 63.2% (verified by direct computation and matching the House of Commons Library's own reporting). Notice this is a completely different number from Labour's 33.7% vote share — that gap is this week's central lesson about FPTP.

Q9 (Multiple answer — select all that apply). The UK's 2024 general election result (Labour's 63.2% seat share on 33.7% of the vote; Reform UK's 14.3% vote share converting to only 5 seats, 0.8% of the chamber) is a documented, verified outcome. Which of the following are ACCURATE descriptions of what this result does and does not show? Select all that apply.
- A. It shows that FPTP can, as a matter of documented mechanical fact, convert a minority of the national vote into a majority of seats ✅
- B. It shows that a party can win a much larger vote share than seat share under FPTP if its support is spread thinly across many districts rather than concentrated ✅
- C. It settles, by itself, whether FPTP or proportional representation is the better electoral system
- D. It proves that the 2024 result was illegitimate or that the rules were applied incorrectly
Feedback: The verified result documents two real mechanical facts about FPTP (A and B). It does not, by itself, settle the contested normative question of which system is "better" (C — that's Discussion 11's whole topic, argued from both sides), and there is no evidence of any irregularity in how the rules were applied (D — the result is officially certified).

Q10 (MC). In the FPTP-vs-PR debate, proponents of proportional representation typically argue that PR's chief advantage is:
- A. It more closely translates a party's vote share into its seat share, giving smaller parties and minority viewpoints legislative voice ✅
- B. It always produces a single-party majority government, which PR's supporters say is more stable
- C. It eliminates the need for voters to choose between parties at all
- D. It guarantees lower voter turnout than FPTP
Feedback: PR's proponents point to proportionality — seats tracking votes closely, giving smaller parties real voice. (B is actually closer to a claim FPTP's proponents make about FPTP, and even that is a tendency, not a guarantee; C and D describe neither system.) This item tests what the position claims, not which system is actually superior — this course never grades which side a student takes on a contested question.

Answer key (quick reference)

Quality gate (self-checked): each single-answer item has exactly one correct option; the multiple-answer item lists the two accurate descriptions (A, B) and requires C and D to be left unselected; the matching item pairs each electoral-system family with its real defining mechanism. Fact-and-source-accuracy gate — PASS: the UK's 2024 figures (Labour 411/650 seats, 63.2%, on 33.7% of the vote; Reform UK 14.3% of the vote → 5 seats, 0.8%) were verified against the House of Commons Library's official research briefing CBP-10009 (commonslibrary.parliament.uk/research-briefings/cbp-10009/); the 63.2% figure in Q8 was independently re-computed (411 ÷ 650 × 100 = 63.2%); the Duverger attribution (Maurice Duverger, Political Parties, 1951) and the mechanical/psychological-effect distinction are accurate to the historical and methodological record. Evenhandedness check: no item asks whether FPTP or PR is the "correct" system; Q9 and Q10 test what the documented result shows/does not show and what a position claims, never which side is right.

Item-bank entries (for variants + the final)

All ten items are tagged course=POLS1 · week=11 · objective=6 · topic=parties-elections-voting-systems and deposited in Item Bank: Week 11 — Political Participation. The final (Week 16) and per-term variant updates draw fresh items from this bank. (Tags: q1 party-functions, q2 fptp-defined, q3 majority-runoff, q4 system-matching, q5 duverger-direction, q6 duverger-tendency, q7 mechanical-effect, q8 uk-seat-share-computed, q9 uk-shows-not-shows, q10 pr-proponents-claim.)

Canvas placement block

canvas_object    = Quizzes::Quiz
title            = "Week 11 Quiz — Political Participation: Parties, Elections & Voting Systems"
assignment_group = "Quizzes"
points_possible  = 10
grading_type     = points
due_offset_days  = 6        # 6 days after module start (Sun Nov 15)
published        = true
shuffle_answers  = true
provenance       = "~ Prof. Halloran's edition · Fall 2026 · built with thecoursemaker.com"