Why Spaced Repetition Is the Best Way to Study for the Citizenship Test

What is Spaced Repetition?

Spaced repetition is a study technique where you review information at increasing intervals over time. Instead of cramming everything in one session, you study a small amount each day, with the system calculating exactly when you need to review each fact.

The Science

Spaced repetition is based on two well-established findings in cognitive science:

The Forgetting Curve

Herman Ebbinghaus discovered in 1885 that memory decays exponentially over time. If you learn a fact today, you will forget approximately: - 50% within 1 hour - 70% within 24 hours - 90% within 1 week

...unless you review it.

The Spacing Effect

Reviewing information at spaced intervals (rather than all at once) produces significantly stronger memory. Each review reinforces the memory and extends the time before the next review is needed.

The SM-2 Algorithm

The SM-2 algorithm, developed by Piotr Wozniak in 1987, is the most widely used spaced repetition algorithm. CitizenApp implements SM-2 to calculate the optimal review schedule for each question.

How It Works

Each question has two key values: - Interval: How many days until the next review - Ease factor: How easy you find this question (adjusts over time)

After answering a question, the algorithm updates these values:

Correct + High Confidence (Quality 5): - Interval multiplied by ease factor - Ease factor increases slightly - Next review may be days or weeks away

Correct + Medium Confidence (Quality 4): - Interval multiplied by ease factor - Ease factor stays the same

Correct + Low Confidence (Quality 3): - Interval multiplied by ease factor - Ease factor decreases slightly

Incorrect (Quality 1): - Interval resets to 1 day - Ease factor decreases - You see this question again very soon

Example

Day 1: You learn that Confederation was in 1867. You answer correctly with high confidence. → Next review: Day 3

Day 3: You answer correctly again. → Next review: Day 7

Day 7: You answer correctly again. → Next review: Day 16

Day 16: You answer incorrectly. → Next review: Day 17 (resets to 1 day)

Day 17: You answer correctly. → Next review: Day 19

This way, facts you know well are reviewed rarely, while facts you struggle with are reviewed frequently.

Why It Works for the Citizenship Test

The citizenship test requires you to remember hundreds of specific facts — dates, names, places, concepts. Spaced repetition is ideal for this type of knowledge because:

1. It prioritizes your weak areas. You spend time on the facts you don't know, not the ones you already do.
2. It prevents forgetting. The algorithm schedules reviews just before you would forget, keeping facts fresh.
3. It is time-efficient. 20-30 minutes per day is enough. You don't need to study for hours.
4. It works with your brain. Instead of fighting the forgetting curve, spaced repetition works with it.

Results

Data from CitizenApp users shows: - 94% first-attempt pass rate for spaced repetition users (vs. 87% overall) - 50% less total study time compared to re-reading the guide - Average study time: 10-15 hours over 4-8 weeks

How to Start

1. Download CitizenApp (free)
2. Complete your first 10 questions
3. Return daily — the algorithm schedules your reviews
4. Take a mock test weekly to track progress
5. When you consistently score 18/20+, you are ready

The algorithm does the planning for you. All you have to do is show up and answer questions every day.