Data collection is the process of gathering and measuring information used for research. Collecting data is one of the most important steps in the research process, and is part of all disciplines ...

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 ...

Unit-level data of surveys conducted by National Sample Survey (NSS), MoSPI along with metadata are disseminated through MoSPI’s website which is freely accessible. While disseminating unit level ...