OETStudy - AI-powered DET Test Preparation Platform

OETStudy is an AI-powered learning tool and DET (Duolingo English Test) preparation platform that leverages AI and big data to provide goal-driven, engaging practice with minimal effort. It offers a large question bank, advanced AI scoring, and diverse study tools to help users improve speaking, writing, vocabulary, and overall proficiency.

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Key Features

• Largest DET question bank: 15,000+ questions
• Strong AI scoring system for all speaking and writing questions
• Mentor feature to respond to questions
• AI-driven speaking and writing evaluation with multi-factor scoring
• Inquiry-driven community for study support
• CEFR checker to gauge proficiency from A1 to C2
• AI-powered practice analysis to track progress
• Vocabulary lists clustered by question types and practice data
• CEFR-based proficiency assessment to guide learning
• Study materials and guided guidance for effective knowledge acquisition
• Ability to study with other test-takers and share experiences
• Multilingual support and a global study community
• Free trial practice option
• Clear motivation to achieve high scores with reduced study time
• Regular content updates and extensive practice sessions
• Access to a large repository of resources suitable for DET preparation
• Availability of Telegram group for community support

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How It Works

1. Practice with a vast question bank. Access 15k+ DET questions across multiple difficulty levels.
2. Receive AI scoring. The strongest AI scoring system analyzes speaking and writing responses using six scoring factors across 23 sub-factors, delivering precise feedback.
3. Get mentor support. A mentor helps address questions and clarifications about practice items.
4. Track progress. Practice statistics, practice analysis, and CEFR assessments guide improvement.
5. Enhance your vocabulary. Intelligent clustering of words by question type and practice data supports targeted vocabulary growth.
6. Study with others. Join a community of test-takers for collaborative learning and motivation.

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Study Tools

• 🔤 Vocabulary Lists (AI-clustered by question type)
• 🔎 CEFR Checker (A1 to C2) for proficiency assessment
• 🗣️ Speaking Evaluation (AI-based, multi-factor scoring)
• 📝 Writing Evaluation (AI-based, multi-factor scoring)
• 📈 Practice Analysis (recording and analyzing practice data)
• 📚 Study Materials (guidance and resources for effective learning)
• 👥 Study With Test Takers (collaborative learning)
• 📱 Telegram Group Access (community support)

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How to Use OETStudy

1. Sign Up / Sign In to access the DET practice platform.
2. Browse the question bank and select practice sets aligned with your goals.
3. Complete speaking and writing tasks to receive AI-driven scoring and feedback.
4. Review practice statistics and use the CEFR checker to monitor progress.
5. Utilize study materials and vocabulary lists to reinforce learning.
6. Join the community for additional tips, discussions, and peer support.

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Safety and Legal Considerations

• Content is intended for personal educational use and DET preparation.
• Adhere to platform terms and applicable academic integrity guidelines when using practice materials.

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Core Features

• AI-powered DET practice platform with 15k+ questions
• AI scoring for speaking and writing with 6 scoring factors and 23 sub-factors
• CEFR checker to measure proficiency from A1 to C2
• Vocabulary clustering and targeted study tools
• Practice analysis and progress tracking
• Mentor assistance and community support
• Free practice option and ongoing access to study materials
• Multilingual support and global study community