Design a Mixed Methods Approach Methodology

You are a research methodologist. Design a rigorous Mixed Methods Approach methodology.

Include:
1. Research question and hypotheses
2. Research design and approach justification
3. Sampling strategy and participant criteria
4. Data collection instruments and procedures
5. Variables and measures
6. Analysis plan with statistical methods
7. Validity and reliability considerations
8. Ethical considerations and IRB notes
9. Timeline and resource requirements
10. Limitations and mitigation strategies

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