Kit Library / Social Studies / Civics & Government

⚡ Topic Learning Kit

STV Basics

English 18 leveled MCQs 17 flashcards 6 games Free

Shared by a Veda learner · Generated with Veda AI

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💡 Key Idea

What is STV?

Vote for candidates, not just parties.

Single Transferable Vote (STV) is a *proportional representation* system where voters rank candidates in order of preference. Instead of voting for one person, you number candidates: 1 for your favorite, 2 for your next choice, and so on. If your top choice is elected or eliminated, your vote t...

↳ STV lets your vote count even if your first choice wins or loses.

⚙️ Process

How STV Counting Works

Follow the vote transfers step by step.

↳ STV counts votes in rounds, transferring votes to keep them effective.

➗ Formula

The Quota Formula

How many votes guarantee a seat?

This is the Droop quota, the most common formula. A candidate needs just over this many votes to be elected. It ensures that only the required number of candidates can reach the quota.

↳ The quota is the minimum votes needed to win a seat in STV.

📖 Smart notes

What you'll study, topic by topic

1

Single Transferable Vote (STV) Explained Simply

The Single Transferable Vote (STV) is a proportional representation system where voters rank candidates in order of preference. Counting uses a quota to elect candidates, with surplus votes transferred and low-scoring ca...

  • STV is a proportional electoral system used in multi-member constituencies.
  • Voters rank candidates: 1 for first choice, 2 for second, and so on.
  • A quota is calculated using the Droop formula: (total valid votes / (seats + 1)) + 1.

~8 min · full explanation, examples & memory tricks in the app

❓ Leveled MCQ practice

Try the smart MCQs from this kit

18 questions laddered from warm-up to topper-level, each with an explanation. A taste:

What is the primary goal of the Single Transferable Vote (STV) system?

Beginner
A To elect a single winner with a majority B To eliminate the need for political parties C To achieve proportional representation in multi-member districts D To ensure the fastest vote counting
Show answer & explanation

To achieve proportional representation in multi-member districts

STV is designed to produce proportional representation, meaning the number of seats a party wins roughly matches its share of the vote, especially in multi-member districts.

In STV, voters rank candidates in order of preference. What does ranking allow?

Beginner
A Voters to vote for multiple candidates equally B Voters to indicate a backup choice if their first choice is eliminated or has surplus votes C Voters to vote for a party instead of a candidate D Voters to change their vote after the election
Show answer & explanation

Voters to indicate a backup choice if their first choice is eliminated or has surplus votes

Ranking lets voters show not only their first choice but also subsequent preferences, which are used to transfer votes when a candidate is eliminated or has more votes than needed to win.

What is the 'quota' in STV?

Intermediate
A The minimum number of votes a candidate needs to be elected B The number of votes required to avoid elimination C The total number of seats in the district D The maximum number of candidates a voter can rank
Show answer & explanation

The minimum number of votes a candidate needs to be elected

The quota is the minimum number of votes a candidate must achieve to be elected. It is calculated based on the total valid votes and the number of seats to be filled.

Which of the following is a common formula for calculating the quota in STV?

Intermediate
A (Total votes) / (Seats) B (Total votes) / (Seats - 1) C (Total votes) / (Seats + 1) + 1 D (Total votes) * (Seats + 1)
Show answer & explanation

(Total votes) / (Seats + 1) + 1

The Droop quota is commonly used: (Total valid votes) / (Seats + 1) + 1. This ensures that only the required number of candidates can reach the quota.

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