Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

Quality of Life Research, Vol. 30, No. 3 (March 2021), pp. 803-816 (14 pages) Purpose Normative scores (norms) allow for comparisons between population(s) of interest and the general population, which ...

India's demographic landscape is shifting, as revealed by the 2023 Sample Registration System report. The data indicates a declining fertility rate, a shrinking 0-14 age group, and a growing ...

Population data is essential to inform the design of an assessment, such as providing a sampling frame, and to help facilitate analysis. Official statistics of UNHCR and nowcasting estimates are ...

Telangana and Andhra Pradesh follow Delhi closely, with 70.2% and 70.1% of their populations, respectively, in the 15-59 age ...

With the percentage of the economically active population in the 15-59 age group at over 66% in the country, the Sample ...