Research Hierarchy Source: Oxford Evidence, 2018 My Publication Source: Pandey, A., Google Scholar, 2025 Policy Research hierarchy Source: Khadka, D., PRI, 2024 Evidence Level Source: Khadka, D., PRI, 2024 Study Software Analysis Systematic Review R, Review manager, Covidence PRISMA flow chart, Forest Plot, etc. Meta-Analysis Models (Fixed and random effect model) Mixed method study SPSS, STATA, R, Atlas and NVIVO, etc. Hypothesis testing: t, Z, χ2 , ANOVA, MANOVA, Non-parametric test, Regression & Correlation Qualitative analysis: Thematic, Content, Narrative, Framework, Grounded theory, etc. नीति निर्माताको अनुभव वैज्ञानिक विधिबाट एकल अनुसन्धान मिश्रित अध्ययनको सस्लेषण पद्धतिबद्ध समीक्षा 25 30 5 सर्वाधिक बलियो बलियो सामान्य कमजोर Justification - Knowledge, Experiences and Expertise to Contribute to Center for Governance and Federal Affairs Policy