Prioritization Tool - Selection Threshold Estimation

Cash Working Group - NWS

2025-03-01

Preliminary Analysis for Minimum Selection Threshold Estimation

This analysis serves as an initial step toward estimating a minimum selection threshold. It highlights the vulnerability levels based on the MPC scorecard by examining the vulnerability scores of households (HHs) registered by three partners across 23 locations.

  • Vulnerability Score Summary.
  • Weighting Vulnerability Groups
  • Comparison of Vulnerability Scores Across Locations
  • Practical Application

Summary

(a) Histogram plot
(b) Boxplot plot
Figure 1: Vlunerability Score Distribution
N Mean Median Std.Dev Min Max
score 5649 11.9 12 3.7 0 25.26

Vulnerability Groups

(a) Correlation Matrix among Vuln.Groups
(b) Average percentage contribution of each group to the vulnerability score
Figure 2: Vulnerability Groups

Comparing

(a) By Location
(b) By Location Type
Figure 3: Vulnerability Scores Average with (95%) CI

  • The average vulnerability scores by location range between (9) and (13.7). While the overall average for all data is 11.9


  • The plot indicates that candidate households (HHs) from district centers have a statistically significantly higher average vulnerability score compared to other community types. Conversely, the initial list from sub-district centers shows a lower vulnerability score. However, this difference is practically negligible, as the average vulnerability scores by community type range between 11 and 12.4. This consideration also accounts for potential biases in data collection.

Overall Average as selection Threshold

Setting the selection threshold to the overall average implies that the expected proportion of targeted households will be 50% of the total registered households.


Thinking!

Given that the expected proportion of targeting out of total registered households is 50% for the overall average as the selection threshold, does this mean the expected proportion of targeting per location is 50% of registered HHs?


In fact, not necessarily. This discrepancy arises due to varying levels of vulnerability (vulnerability scores) among targeted communities. One advantage of defining a minimum selection threshold is that it ensures fairness in selection across all families, regardless of their community or the partner targeting them.

Relationship

The data showed that there is a negative relationship between the vulnerability score average and the number of registered HHs in the locations. Whereas the plot shows the locations that have a higher vulnerability average, the number of registered HHs within was lower

Practical Application

  • Taregetin Proportion along Threshold values per Location.

  • Point size represents the number of registered HHs.

  • Point color represents the type of location

  • Dashed line represents the targeting proportion for the whole data