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Baseline and Endline KAP survey villages_Matching

This question was posted the Assessment and Surveillance forum area and has 2 replies.

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Tammam Ali Mohammed Ahmed

Nutrition Specialist/ Save the Children

Normal user

20 Dec 2015, 06:47

Hello Team,
In Endline KAP survey activity. Is it necessary to screen the same villages as in the Baseline survey without changes. What will happnen if villages in the endline KAP are not matching same villages in the Baseline survey. What is your advice to go ahead with this survey or to be cancelled??

Joel Kiarie Mwaura

Nutrition and Health Specialist

Normal user

21 Dec 2015, 13:14

I think its only advisable to do the endline survey on the same people you did the baseline survey on. Unless you are dealing with a nomadic population and you are very certain that its the same people that moved to the other village, the real change in the indicators being measured should be observed among the same people, community or village where the first assessment was done.

Bradley A. Woodruff


Technical expert

11 Jan 2016, 19:56

Dear Mr./Ms./Dr. Ahmed:
I am sorry this response is so late; I was out of town on vacation for the past 2 weeks. Whether or not to try to include the same individuals or villages in an end-line survey as were included in the baseline survey depends on the objectives of your program. If the program aims to improve the community's level of an outcome, then you probably want to independently measure the status of the community at the two points in time, which means you need independent samples for each survey.

As you know, observer bias can produce spurious results; that is, the individuals and villages included in the baseline have received additional program input (the baseline survey itself) and may be more likely to respond to the intervention because of this prior sensitization, thus producing an overestimate of the effect of the intervention. This is especially true of KAP interventions.

Selecting separate, independent samples will measure the program effectiveness of your intervention, while selecting the same sample for both surveys will measure something more like efficacy. Program effectiveness is always lower than efficacy because it takes into account real-world constraints. I think it is the better evaluation of a community-targeted program.

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