Brass P/F Ratio Method
The Brass P/F ratio method is the foundational technique of indirect fertility estimation, designed to correct fertility levels in populations whose vital registration is incomplete but where a census or survey reports both recent births and lifetime children ever born. It compares F — the period fertility a synthetic cohort would have accumulated by each age — with P, the average parity (children ever born) actually reported by women of that age. The ratio of the two diagnoses and corrects errors in the reported level of current fertility, yielding an adjusted total fertility rate from data too defective for direct calculation.
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Vyanzo
- Brass, W. (1975). Methods for Estimating Fertility and Mortality from Limited and Defective Data. Carolina Population Center, University of North Carolina at Chapel Hill. link ↗
- Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 9781557864512
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 22). Brass P/F Ratio Method for Fertility Estimation. ScholarGate. https://scholargate.app/sw/demography/brass-pf-ratio-method
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Weka mbinu hii kando ya jamaa zake wa karibu na uzisome bega kwa bega — maktaba huweka vitabu mezani; uamuzi ni wako.
- Brass Growth Balance MethodDemografia↔ linganisha
- Parity Progression RatioDemografia↔ linganisha
- Relational Gompertz Fertility ModelDemografia↔ linganisha
- Total Fertility RateDemografia↔ linganisha
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