BI Data Hero vs Certified Health Data Analyst

BI Data Hero is a Power BI practice quiz and PL-300 exam prep game. No account, no sign-up, no ads, and it works fully offline. Your answers never leave your device. Practise DAX, Power Query, data modelling, data visualisation and the Power BI service through 700+ timed questions, each verified against Microsoft Learn. ALETHEIA'S TOUR (FREE) Start with a 10-challenge introduction by the narrator Aletheia. Meet all five region mentors, sample each discipline, then pick your first realm. No purchase required. FIVE REGIONS, FIVE DISCIPLINES • Shaping Rivers: Tame raw data with Power Query • Model Groves: Build data models and relationships • Measure Peaks: Practise DAX formulas and calculations • Sight Towers: Create impactful visualisations • Governance Citadel: Govern the Power BI Service HOW IT WORKS Each region has 8 chapters with around 20 encounters per chapter. Your NPC guides (Maren, Callum, Fen, Lyra, Aelind, Torren, Seren, Idris, Kael and Renna) challenge you through story-driven dialogue and interactive encounters. Every answer links to official Microsoft Learn documentation. CHALLENGE TYPES Not just multiple choice. Fill-in-the-blank code, sequence builders, formula builders, decision trees, memory matches, rapid-fire rounds, error identification and more. CINEMATIC EXPERIENCE Region intro cutscenes, chapter transitions, and an original 120-track soundtrack across 6 themed radio stations. Also available on Spotify and Apple Music. GAME CENTER Global leaderboards (Total Score, Longest Streak, Chapters Cleared) and per-realm achievements. See where you rank among other Power BI practitioners. 5 MINUTES A DAY Short encounters designed for commutes, lunch breaks, evening study. Progress saves automatically. Pick up exactly where you left off. ONE-TIME PURCHASE, NEVER EXPIRES Aletheia's 10-challenge introduction is free for everyone. Unlock all 700+ challenges across all 5 regions and 40 chapters with a single one-time purchase. No subscription. No renewals. Works offline once cutscenes are cached. Built by Power BI professionals for Power BI professionals. Every challenge verified against current Microsoft Learn documentation. BI Data Hero is an independent educational product and is not affiliated with, sponsored by or endorsed by Microsoft Corporation. Microsoft, Power BI, DAX, Power Query and Microsoft Fabric are trademarks of Microsoft Corporation. Terms of use (EULA): https://bidatahero.com/terms-of-service Privacy policy: https://bidatahero.com/privacy-policy

Turn the CHDA exam's six domains into your six strengths. CHDA Study Guide organizes everything around the AHIMA exam content domains — Foundational Knowledge of Analytics in Healthcare, Business Needs Assessment, Data Acquisition, Data Analysis, Data Interpretation & Reporting, and Data Governance — so you study exactly what the exam tests. WHAT'S INSIDE • 90+ flashcards — tap to flip, tagged by domain • 50+ multiple-choice practice questions with instant feedback and full explanations • 85 glossary terms and key acronyms, fully searchable • 30 healthcare-analytics formulas with variables and usage notes TOPICS COVERED • Foundational knowledge: analytics types, claims vs. EHR data, ICD-10/CPT/SNOMED/LOINC, MS-DRG/APC/RVU reimbursement, HL7 FHIR, HIPAA/HITECH • Business needs assessment: stakeholders, problem definition, translating questions into metrics, KPIs, the analysis plan • Data acquisition: primary vs. secondary data, ETL, data warehouse vs. data mart, OLTP/OLAP, joins and keys, cleansing, mapping, validation • Data analysis: descriptive statistics, rates vs. ratios, incidence vs. prevalence, hypothesis testing, p-values and confidence intervals, risk adjustment, sensitivity/specificity, control charts • Data interpretation & reporting: key findings, recommendations, chart selection, avoiding misleading visuals, dashboards, benchmarking • Data governance: data quality, stewardship, HIPAA Privacy & Security Rules, de-identification, role-based access, data dictionaries, audit controls SIMPLE PRICING Start free with a preview of every section. CHDA Premium unlocks the entire question bank, glossary, and formula library for $2.99/month. PRIVATE BY DESIGN No account. No ads. No data collection. Your progress never leaves your device. CHDA PREMIUM SUBSCRIPTION • $2.99 per month (1-month duration), auto-renewing • Unlocks all six exam domains, every flashcard, the full question bank, searchable glossary, and the formula library Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. This app is an independent study aid and is not affiliated with, endorsed by, or sponsored by the American Health Information Management Association (AHIMA). Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://davidmp481.github.io/study-apps-legal/privacy-policy.html