Use of handheld computers with global positioning systems for probability sampling and data entry in household surveys.
Am J Trop Med Hyg
; 77(2): 393-9, 2007 Aug.
Article
en En
| MEDLINE
| ID: mdl-17690421
ABSTRACT
We introduce an innovative method that uses personal digital assistants (PDAs) equipped with global positioning system (GPS) units in household surveys to select a probability-based sample and perform PDA-based interviews. Our approach uses PDAs with GPS to rapidly map all households in selected areas, choose a random sample, and navigate back to the sampled households to conduct an interview. We present recent field experience in two large-scale nationally representative household surveys to assess insecticide-treated bed net coverage as part of malaria control efforts in Africa. The successful application of this method resulted in statistically valid samples; quality-controlled data entry; and rapid aggregation, analyses, and availability of preliminary results within days of completing the field work. We propose this method as an alternative to the Expanded Program on Immunization cluster sample method when a fast, statistically valid survey is required in an environment with little census information at the enumeration area level.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Recolección de Datos
/
Sistemas de Información Geográfica
/
Computadoras de Mano
Límite:
Child, preschool
/
Female
/
Humans
/
Infant
/
Pregnancy
País/Región como asunto:
Africa
Idioma:
En
Revista:
Am J Trop Med Hyg
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos