Questionnaire Surveys

Design and Estimation for Split Questionnaire Surveys

Guide to the design and application of online questionnaire surveys

Collecting research data through traditional approaches (face-to-face, postal or telephone survey) can be costly and time consuming. The emerging data collection approach based on internet/e-based technologies (e.g. online platforms and email), is a relatively cost effective survey alternative. These novel data collection strategies can collect large amounts of data from participants in a short...

VoQs: A Web Application for Visualization of Questionnaire Surveys

This paper is motivated by analyzing questionnaire data that collected from patients who suffer from an orphan disease. In order to decrease misdiagnoses and shorten the diagnosis time for people who have not been diagnosed yet but already have a long history of health problems, a research project about using questionnaire mode and data analysis methods to predetermine orphan disease has been s...

Euthanasia of Danish dairy cows evaluated in two questionnaire surveys

BACKGROUND Mortality risk in Danish dairy cows has more than doubled since 1990 (from 2% in 1990 to 5% in 2005). Until now, registrations about dead cows in the Danish Cattle Database have not included information about whether the cow died unassisted or was euthanized. METHODS We interviewed a random sample of 196 Danish dairy farmers that had reported a dead cow to the Danish Cattle Databas...

Validation of a stroke symptom questionnaire for epidemiological surveys.

CONTEXT AND OBJECTIVE Stroke is a relevant issue within public health and requires epidemiological surveillance tools. The aim here was to validate a questionnaire for evaluating individuals with stroke symptoms in the Stroke Morbidity and Mortality Study (Estudo de Mortalidade e Morbidade do Acidente Vascular Cerebral, EMMA), São Paulo, Brazil. DESIGN AND SETTING This was a cross-sectional s...