Mixed-mode surveys, in which different respondents complete the survey by different modes, become increasingly popular. That said, such surveys may lead to a confounding of two forms of mode effects, ...

The usual ordering of the mean, median and mode for a central chi square distribution is extended for the noncentral case. In this context, the mean is known to be additive, while it is shown that ...

The discussion paper provides estimates of mode-specific measurement biases for key health statistics between web and interviewer-assisted data collection. Biases for some statistics are sizeable and ...

Explore the importance of robust statistics like median and MAD in data analysis, ensuring accurate insights despite outliers ...