Error message

You are accessing PEP using an unencrypted connection. For your security, PEP only supports account logins using a secure protocol such as HTTPS. You can switch to HTTPS by trying to view this page again after changing the URL in your browser's location bar to begin with "https" instead of "http". Please contact site admin for help if this error continues.

Impact Evaluation Using Stata

New training package prepared by PEP impact evaluation experts

Two of PEP lead researchers and resource persons (Habiba Djebbari and Maria Adelaida Lopera Baena, see below) have prepared a new training package to guide researchers who wish to conduct rigorous experimental impact evaluations.

The "interactive" material consists of a PDF manual, with links to a series of audio podcasts, command files (executable with Stata) and datasets.

Download it here: Impact Evaluation Using Stata

This initiative was undertaken in the context of the PEP "Policy Impact Evaluation Research Initiative" (PIERI) - one of the four programs through which PEP resources contribute to building capacities for high quality research in developing countries, using different methods, techniques and approaches.

This particular document aims to serve as a complement to an interactive textbook, entitled "Impact Evaluation in Practice", published by the World Bank in 2011 to provide an "accessible introduction to the topic of impact evaluation and its practice in development".

The new PEP training package "Impact Evaluation Using Stata" presents a series of examples illustrating the basic analysis required in a rigorous program evaluation report*, and is organized as follows:

  • Chapter 1 is a quick introduction to Stata and its programming language
  • Chapter 2 illustrates the randomization process and how to compute basic power calculations
  • Chapter 3 shows how to estimate simple program effects

The document is also "interactive": 

  • data sets and Stata exercises are available by clicking on the links
  • complementary videos are accessible by clicking on the blue icon 

One easy click to access this new PEP training material, free of charge:

  • Click here to download the training manual "Impact Evaluation Using Stata" (in PDF)
  • For the *dta and *do, click:
    • Here for hh_91_practice.dta
    • Here for hh_follow-up.dta
    • Here for Chapter
    • Here for Chapter
    • Here for Chapter

It is important to note that each "evaluation" has particularities that need to be addressed and researchers are expected to further explore the caveats of their own program. The required background is a basic knowledge of the software Stata ( and some familiarity with statistical terminology.

The authors

Habiba Djebbari
Founder and former coordinator
of the PEP-PIERI program
Research Fellow - CIRPÉE, IZA


Maria Adelaida Lopera Baena
PEP-PIERI resource person
PhD Candidate, Université Laval




Funded by