Build Quiz Comparison Tool

Title: Create Side-by-Side Quiz Attempt Comparison Interface

Problem Statement

Users who retake quizzes cannot easily compare their performance across attempts to identify improvement areas or track progress. A comparison tool would provide valuable insights into learning patterns and effectiveness.

Proposed Solution

Develop a quiz comparison feature allowing users to:

• Select two quiz attempts to compare
• Side-by-side view of results
• Highlight differences in answers
• Show improvement metrics
• Visualize performance changes
• Export comparison report

Acceptance Criteria

✅ Comparison Selection

• "Compare" button on quiz result cards
• Multi-select mode in quiz history
• Select exactly 2 quizzes to compare
• Validate quizzes are from same category/quiz
• Disable compare if incompatible quizzes selected
• "Compare Selected" button appears when 2 selected

✅ Comparison Page Layout

• Split-screen design (50/50)
• Left side: First attempt, Right side: Second attempt
• Synchronized scrolling between panels
• Header showing attempt dates and scores
• Color coding: Blue for attempt 1, Green for attempt 2
• Toggle between split view and overlay view

✅ Score Comparison

• Large score displays at top of each panel
• Percentage and absolute score
• Difference calculation (+/- X%)
• Arrow indicators (↑ improved, ↓ declined, → same)
• Score change percentage prominently displayed
• Visual gauge showing improvement

✅ Question-by-Question Comparison

• List of questions in order
• Show both attempts' answers side by side
• Highlight differences in red/green
• Correct answer displayed
• Indicators:
  • ✓✓ Both correct
  • ✗✗ Both incorrect
  • ✓✗ First correct, second incorrect
  • ✗✓ First incorrect, second correct
• Time spent on each question (both attempts)

✅ Performance Metrics

• Overall accuracy change (%)
• Questions improved count
• Questions declined count
• Consistent correct answers count
• Consistent incorrect answers count
• Average time per question change
• Total time comparison

✅ Visualization Charts

• Bar chart comparing scores
• Line graph showing progression (if >2 attempts)
• Pie chart of question outcome distribution
• Radar chart for category-wise comparison (if applicable)
• Time spent comparison chart

✅ Improvement Analysis

• "Areas of Improvement" section
• List questions that improved with explanations
• "Areas Needing Work" section
• List questions that declined
• "Consistently Strong" - questions correct both times
• "Consistently Weak" - questions incorrect both times
• Suggestions for topics to study

✅ Export Comparison

• Download comparison as PDF
• Include all metrics and charts
• Professional formatting
• Date of comparison in filename
• Option to include/exclude question details

✅ Additional Features

• Compare button in quiz history filters
• "Compare with average" option
• Compare with best attempt
• Multiple attempts timeline view
• Bookmark comparison for later review