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 ...

Black Americans constitute a population that is multicultural, regionally distinctive and often underrepresented in surveys. While most national public opinion surveys allow researchers to study ...

Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...

The National Sample Survey (NSS), since its beginning in 1950 by launch of the first round of Household Consumption Expenditure Survey and other allied indicators, has for the last 75 years quietly ...

The goal of the policy is to ensure efficiency, accuracy, accountability and consistency in the administration of surveys and data collection efforts at WMU. This policy is intended to: The policy ...

This study reviews the Census Bureau’s annual economic surveys. Specifically, it examines the design, operations, and products of 11 surveys and makes recommendations to enable them to better answer ...

Targeting matters most. Surveying the wrong audience can lead to misleading data and poor decisions, even if the questions themselves are solid. Weighting shapes reality. Overrepresenting certain ...

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 ...