Pew Research Center’s cross-national studies are fielded in a range of polling environments, from countries where telephone surveys are regularly administered to nations where face-to-face surveys are ...

A French quality of life questionnaire specific to erectile dysfunction (ED), ‘QVS’ for ‘Questionnaire de Vie Sexuelle’, has been developed. This paper describes its validation: item reduction and ...

Successful customer and market research can provide the data you need to support specific business objectives, such as understanding requirements for a new market or a new product, fine-tuning your ...