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How to Select the Right Study Design Group: pubrica.com Email: sales@pubrica.com
Introduction • Study design determines how data is collected and interpreted. • Impacts reliability, validity, and scientific credibility. • Must align with objectives, resources, and population characteristics. +44 161 394 0786 +91 9884350006 sales@pubrica.com pubrica.com • Copyright © 2025 pubrica
Understanding Study Designs: An Overview • Study designs are categorized as observational or experimental. • Each subtype addresses a specific type of research question. • Selection depends on purpose: • prevalence, risk, outcome, or intervention. +44 161 394 0786 +91 9884350006 sales@pubrica.com pubrica.com • Copyright © 2025 pubrica
Key Criteria to Consider • Match study design to research question: descriptive, analytical, or interventional. • Factor in timeline: point-in-time (cross-sectional) or over time (cohort/RCT). • Resource and ethical constraints influence feasibility and design type. +44 161 394 0786 +91 9884350006 sales@pubrica.com pubrica.com • Copyright © 2025 pubrica
Match the Design with Objectives • Cross-sectional studies are best for prevalence estimation. • Use case-control for retrospective risk analysis. • Apply cohort or RCT for outcome tracking and intervention assessment. +44 161 394 0786 +91 9884350006 sales@pubrica.com pubrica.com • Copyright © 2025 pubrica
Strengths and Limitations • Each design has trade-offs between validity, cost, and bias. • RCTs offer high validity but are resource-intensive. • Observational studies are efficient but vulnerable to bias. +44 161 394 0786 +91 9884350006 sales@pubrica.com pubrica.com • Copyright © 2025 pubrica
Ethical & Reporting Considerations • RCTs need formal approvals; • observational studies raise data privacy concerns. • Adhere to ethical frameworks like Helsinki Declaration and ICMR/NIH. • Use STROBE (observational) or CONSORT (RCT) checklists for reporting. +44 161 394 0786 +91 9884350006 sales@pubrica.com pubrica.com • Copyright © 2025 pubrica
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