Comparing surveys and digital trace data reveals differing strengths and weaknesses in measuring smartphone usage, suggesting a combined approach for better accuracy.
New research comparing the measurement quality in probability and non-probability panels in Germany and Australia.
Learn how to design better invitation letters to increase participation in online surveys. Results from an experiment.
We present the MultiTrait MultiError (MTME) approach to estimating multiple types of measurement errors concurrently.
We summarise results from a recent paper that investigated if mental health can be compared across ethnic groups in UK
Face to face interviews are increasingly replaced by web surveys. We use an experiment to investigate implications on measurement.
Nurses can impact the collection of “objective” athropometric and physical performance measures. They explain on average 13% of variation.
Interviwers impact how skin color is measured in face to face surveys. Large differences are found by country with an impact on substantive results.
Recent research has showed that respondents take longer to answer Web survey by mobile than PC. Our new paper explains what leads to this difference using an experimental design.
Is it always beneficial to add another mode of data collection? What is the best order for mixing modes?