Development of Historical Dataset to Enhanced Age Estimation for 2024 Population and Housing Census in Nigeria: Method and Process

Uguru Ibor, Federal University Lokoja, Nigeria
Makanjuola Osagbemi, Federal University Lokoja
Binta Ibrahim, Planning and Research Department, National Population Commission
Marcus Nengak Danjuma, Nasarawa state University Keffi,Nasarawa State
Joshua Silas, Federal University Lokoja

This study seeks to develop a historical dataset of significant local and national events to ensure a more accurate method of estimating age in the 2024 Population and Housing Census in Nigeria. Using free listing and Group Discussion techniques, thirty-three group discussions were held with each consisting of 2 participants in the elderly, retired Civil servants, Religious Leaders, Traditional rules and Women leaders in the southern and northern parts of Nigeria. The findings revealed that the use of event history calendar has considerable potential in assisting respondents to reconstruct their personal past more completely and accurately. The calendar facilitates data collection by assisting respondents to answer questions about events such as marriage, pregnancies, births and other important demographic events. The study concludes that the technique promises to enhance accuracy and increase participation, leading to better outcomes for various age groups throughout Nigeria, adding to the credibility and acceptability of the census.