When it comes to getting a lot of information in a short period, a questionnaire may be the answer. Questionnaires contain lists of questions in open-ended or closed-ended formats. While it takes time ...
Background and Aim: An early and accurate evaluation by a general practitioner is needed to screen out non-gastroesophageal reflux disease (GERD) patients. A recent questionnaire (QUEST) highlighted ...
About Pew Research Center’s Spring 2025 Global Attitudes Survey Results for the survey are based on a mix of telephone, face-to-face and online interviews ...
Historically, public opinion surveys have relied on the ability to adjust their datasets using a core set of demographics – sex, age, race and ethnicity, educational attainment, and geographic region ...
The objective of this study was to conduct a method comparison of a modified food frequency questionnaire (FFQ), designed to estimate usual dietary intake of selected micronutrients and antioxidants ...
Background: Reliability or validity studies are important for the evaluation of measurement error in dietary assessment methods. An approach to validation known as ...
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