An intelligent testing engine that adjusts question difficulty in real-time using Item Response Theory, supporting 4 question formats and AI-generated content across any subject.
Traditional exams give every student the same questions. Adaptive testing adjusts in real-time to find each student's precise ability level.
Diverse question formats test different cognitive skills, from recognition to recall and relational understanding.
Classic multiple choice with one correct answer. AI generates distractor options that test genuine understanding.
Multiple correct answers possible. Tests deeper comprehension with all-or-nothing scoring.
Drag-and-drop matching of related concepts. Tests relational understanding and categorization skills.
Free-text input with case-insensitive matching. Tests recall and precise knowledge.
The capital of France is Paris
See how our adaptive testing engine stacks up against popular assessment platforms.
| Feature | Us (PrepareBuddy) | Google Forms | Moodle Quiz | Mercer Mettl | Questionmark |
|---|---|---|---|---|---|
| Adaptive Difficulty | IRT-Based | No | Plugin Only | Yes | Yes |
| AI Question Generation | Unlimited | No | No | No | No |
| Question Types | 4 Formats | 12 Basic | 15+ | 10+ | 20+ |
| Real-Time Adjustment | Yes | No | No | Yes | Yes |
| Proctoring | 8 Types | No | Basic | Yes | Yes |
| Instant AI Grading | Yes | No | Basic | Yes | Yes |
| Custom Exam Builder | Yes | Yes | Yes | Yes | Yes |
| Free Tier | Yes | Yes | Open Source | No | No |
| Shareable Exams | Link / QR | Yes | Yes | Yes | No |
See detailed comparison: PrepareBuddy vs Mercer Mettl
The adaptive engine powers multiple exam formats to suit every assessment scenario.
Build your own from the question bank. Choose topics, difficulty, and question types.
Teachers assign exams to students or entire classes with deadlines and proctoring.
Share exams via direct link or QR code. Anyone with the link can attempt it.
Template exams for repeated use across semesters, cohorts, or training groups.
Full exam with adaptive question flow. Difficulty adjusts throughout the entire test.
Individual adaptive practice. Each question targets the student's current ability level.
Fully AI-created exams on any topic. Specify subject, level, and count -- done in seconds.
Control the exact distribution of question types in every exam. Set percentages to match your assessment goals.
Adjust these percentages when creating any exam to match your specific assessment objectives.
Accurately place students at the right level from day one. The adaptive engine identifies ability quickly, even across wide skill ranges.
Track learning gains over time with consistent, comparable scores. Measure real growth without test-familiarity bias.
Verify competency with adaptive precision. Set pass/fail thresholds that reflect true mastery, not lucky guessing.
Students practice at their own level. Questions stay in the zone of proximal development to maximize learning efficiency.
Simulate real exam adaptive patterns used in standardized tests. Prepare students for the actual testing experience.
Comprehensive anti-cheating measures you can enable individually for each exam.
Forces the exam into fullscreen mode, preventing access to other windows.
Detects and logs every time a student switches browser tabs.
Disables clipboard operations to prevent copying questions or pasting answers.
Prevents right-click context menus to block inspect element and saving.
Tracks time spent on each individual question for behavioral analysis.
Captures webcam snapshots at intervals to verify student identity and presence.
Shuffles question sequence so no two students see the same order.
Draws questions from a larger pool so each student gets a unique set.
Harness IRT-based adaptive testing, 4 question formats, and AI generation to assess every student at their true level.
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