The Progress out of Poverty Index® (PPI®) for Sierra Leone is an easy-to-use, objective client poverty assessment tool. It estimates the likelihood that a participant has income below the Food Poverty Line, National Poverty Line, 75% of the National Poverty Line, 100% of the National Poverty Line, 150% of the National Poverty Line, USAID "Extreme" Poverty Line, $1.25/Day/2005 PPP line, and $2.50/Day/2005 PPP line.

 The PPI uses 10 simple indicators that field workers can quickly collect and verify. Scores can be computed by hand on paper in real time. The PPI can help programs target services, track changes in poverty over time, and report on poverty rates.

Indicators in the PPI are based on Sierra Leone’s 2003/4 Integrated Household Survey. This is the best, most recent household survey available with income or expenditure data. The latest PPI for Sierra Leone was created in May 2011.

This description is taken from: The Progress out of Poverty Index®: A Simple Poverty Scorecard for Sierra Leone,  Mark Schreiner.

PPI® Toolkit for Sierra Leone

• PPI Scorecard and Lookup Table: An example of a country-specific set of PPI indicators and corresponding poverty likelihood lookup table.
• PPI Interpretation of Indicators: Official instructions (where available) for each indicator in the PPI scorecard taken from the 2003/4 Integrated Household Survey enumerator manual. Created May 2012.
• PPI Sample Size Calculator: This document allows users to determine a sample size with precision levels of their choice. It also enables users to determine the precision levels for a given sample size (N).
• PPI Design Documentation Memo: A detailed technical description of the PPI construction and design, written by Mark Schreiner. 
  
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• Frequently Asked Questions (FAQ)