# MyGREBD — Independent GRE-Style Practice > Original GRE-style bilingual practice, timed sets, vocabulary scheduling and plans. Limited original practice bank; no ETS affiliation, adaptive test or score prediction. - Canonical URL: https://khaniq.co.education/ - Methodology & Equations: https://khaniq.co.education/methodology/ - Interactive Browser Runtime: https://khaniq.co.education/run/ - Author & Root Entity: Mohammad Rezwan Khan, PhD (https://mrkhan.co.technology/#person) - Ecosystem Directory: https://mklab.co.technology/ - Knowledge Graph JSON-LD: https://khaniq.co.education/knowledge-graph.jsonld ## Governing Mathematical Formulation & Units - Formula: `Local Practice Accuracy (%) = (Correct Responses / Attempted Items) × 100; Spaced Review Interval I_k = I_{k−1} × Ease_Factor (bounded to local browser study calendar)` - Units: Practice accuracy in %; response latency in seconds/item; vocabulary review intervals in days; weekly study targets in minutes/week. ## Reproducible Worked Example Diagnostic Set Walkthrough: Completing a 10-item mixed Verbal (Text Completion / Reading Comprehension) and Quantitative Reasoning drill records per-item timing and bilingual (English/Bangla) error rationales locally in localStorage, scheduling missed GRE vocabulary roots for 1-day, 3-day, and 7-day spaced repetition without generating an official ETS scaled (130–170) score prediction. ## Canonical Companion Modules on this Domain - **mytoeflbd** (https://khaniq.co.education/toefl/): TOEFL-style practice, local writing and speaking records, objectives and study plans. Boundary: No ETS affiliation, official registration or automated speaking/writing scoring. - Formula: `Section Pacing Rate = Words_or_Items / Allowed_Minutes; Self-Rubric Score = Σ_{d=1..4} Rubric_Dimension_d / 4 (0–4 scale)` - Units: Reading/Listening practice accuracy in %; Speaking response timer in seconds (15 s prep / 45 s response); Writing word count and self-check rubric. - Worked Example: Academic Integrated Task Walkthrough: Learners complete an independent reading/listening passage check, record a local 45-second speaking outline or 250-word academic discussion response in the browser, grade it against a transparent 4-point structural checklist (claim, textual evidence, cohesion, grammar), and save their study plan locally without any ETS affiliation or automated AI score prediction. ## Benchmark Table | Module | Item Format | Language Support | Scoring Method | Official ETS Affiliation | | --- | --- | --- | --- | --- | | Quantitative Drill | Comparison & Numeric Entry | English + বাংলা rationale | Raw % + Pacing (s/item) | None (Independent) | | Verbal Reasoning | Text Completion & RC | English + বাংলা rationale | Raw % + Error Tagging | None (Independent) | | Vocabulary Deck | Spaced Recall Cards | English + বাংলা gloss | Local Mastery Bucket | None (Independent) | ## 5-Domain Core Authority Ecosystem 1. Hub & Authority: https://mrkhan.co.technology/ (Mohammad Rezwan Khan, PhD - BESS QA/QC & Energy R&D) 2. Interactive Course & Twin: https://khanlab.co.technology/ (Datacenter Power Systems & What-If Simulator) 3. Microgrid Research: https://mkgrid.co.technology/ (HelioForge Energy Lab - Hybrid Energy Research) 4. Synthetic Energy Trading: https://mktrade.co.business/ (ZephyrTrade - Wind-Market Synthetic Backtesting) 5. Utility & Tool Suite: https://mklab.co.technology/ (MKLab - 68 Free Browser Engineering & Planning Apps)