Despite these structural differences, this study found little advantage for the RBS sample in terms of efficiency. The overall response rate was 8% for the RBS survey versus 6% for the RDD survey.

Probability-based, national samples are based on multistage, cluster designs. What this means is that we first randomly select clusters of individuals – beginning with relatively large geographic ...

In the decades that followed, hospital design began gradually shifting away from wards to single bedrooms to minimize the spread of disease, Kisacky explains. Early examples appeared in New York ...