Pew Research Center

Comparing Two Types of Online Survey Samples

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 ...
Nature

Psychometric analysis of the Three-Factor Eating Questionnaire-R21: results from a large diverse sample of obese and non-obese participants

The 21-item Three-Factor Eating Questionnaire (TFEQ-R21) is a scale that measures three domains of eating behavior: cognitive restraint (CR), uncontrolled eating (UE) and emotional eating (EE). Data ...
Business Line

Sample surveys’ reference periods need a revisit

The National Sample Survey, under the Ministry of Statistics and Programme Implementation, has been conducting large-scale sample surveys on All-India basis since the 1950s. These surveys are the most ...
National Academies of Sciences%2c Engineering%2c and Medicine

An Assessment of NASA's National Aviation Operations Monitoring Service

Suggested Citation: "3 Sample Surveys: Overview, Examples, and Usefulness in Studying Aviation Safety." National Research Council. 2009. An Assessment of NASA's National Aviation Operations Monitoring ...
Business Line

National Sample Survey: 75 years young and counting

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 ...