International records / OpenAlex research

"Hierarchical Multiple Regression Analysis of the Effects of Demographic Factors on Population Growth in Nigeria" (1973-2022)

Nigeria's population reached an estimated 200 million by 2019 according to the National Population Commission, ranking it seventh globally and posing challenges for resources and infrastructure. This study examines demographic influences on population growth applying World Development Indicators data (1973-2022) using hierarchical multiple regression in three steps. Results showed that Model 1 (net migration only) was significant (R² = .190, p < .01), with migration positively predicting growth. Model 2 added death rate (R² = .196, ΔR² = .006, p > .05), showing no significant improvement; migr…