In the days to come, we should expect more polls to be reported so I thought it would be best to discuss more closely the Philippines’ survey scene. In this first of a three-part series, I describe ...

Note: This report was updated on Dec. 30, 2015 to reflect the January-July 2015 National Health Interview Survey estimates released on December 1, 2015. Telephone surveys face numerous challenges, but ...

This study looks at how national public opinion polling in the United States changed from 2000 to 2022. It focuses on two aspects: the sample source(s) – that is, where the survey takers came from – ...

A new method is proposed for imputation of missing values in sample survey data. The procedure uses standard statistical methodology, permits a general specification of the nonresponse process, and ...

The Survey Research Center (SRC) at the University of Michigan is a well-known survey research entity. In the 1960s, it boasted one of the best survey sampling experts (Leslie Kish) and a permanent ...

India's first Prime Minister Jawaharlal Nehru (left) with scientist and statistician PC Mahalanobis Indian data is staring at a credibility crisis with official numbers on a range of subjects - from ...

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 ...

The main types of non-response are no contact and refusal. In Chapter 2, we discuss some theories for these types of non-response. In addition, we present an overview of the characteristics associated ...

A sample survey has many potential sources of error that generally have a systematic effect on the outcomes. Therefore, many large-scale field experiments are ...

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

The first part of this three-part series described the science behind sample surveys. This next part identifies several opinion poll outfits and the people leading these firms, and then describes ...