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 ...

International Large-Scale Assessments (ILSAs) serve to monitor and benchmark educational achievements, providing accurate, ...

Recognizing the public health emergency posed by opioid overdoses, there increasingly have been calls for a comprehensive approach to drug policy that includes a focuses on reducing harm for people ...