🎯 Interactive Sampling Method Selector
Practice selecting appropriate sampling techniques for diverse M&E populations
📋 How It Works: You'll encounter realistic M&E project scenarios with different population characteristics and constraints. For each scenario, select the most appropriate sampling method considering validity, feasibility, and cost. You'll receive detailed visual feedback on your choice, see comparative scores, and learn optimal sampling strategies.
Choose Your Sampling Challenge
National Agricultural Survey
Large-scale baseline assessment across diverse regions
Population 450,000 farming households across 25 districts in 5 agro-ecological zones
Objective Estimate crop yields, farming practices, and adoption rates with ±3% margin of error
Resources $180K budget, 6-month timeline, 30 trained enumerators, vehicle access
Constraints Geographic dispersion (6+ hours between some districts), rainy season access issues, need regional comparisons
Microenterprise Impact Study
Small business support program evaluation
Population 2,400 program participants (small business owners) + 8,000 non-participants in 3 cities
Objective Detect 15% income difference between participants and comparable non-participants with 80% power
Resources $45K budget, 4-month timeline, 8 enumerators, existing participant database
Constraints Need comparable control group, businesses vary by sector (retail/services/manufacturing), owner gender matters for equity analysis
Hard-to-Reach Populations
HIV prevention program for key populations
Population Unknown size - sex workers, people who inject drugs, MSM in urban settings
Objective Understand service utilization, barriers to access, stigma experiences (qualitative depth + coverage estimates)
Resources $30K budget, 3-month timeline, 4 peer educators, established trust with community gatekeepers
Constraints Hidden population, stigma/criminalization, no sampling frame exists, safety concerns, need community trust
School-Based Intervention
Reading improvement program evaluation
Population 120 primary schools (18,000 students grades 2-4) in 6 regions, mix of urban/rural
Objective Measure reading score improvements, need statistically powered impact evaluation with treatment/control comparison
Resources $90K budget, 8-month timeline, 15 assessors, cooperation from education ministry
Constraints Schools naturally clustered, students similar within schools, regional variation in baseline literacy, need parent consent