Data on call attempts from the Swedish Survey of Living Conditions.
data(swedishlcs)
This data frame contains the following columns:
call attempt number
response rate at call attempt (percent)
relative bias for variable benefits
relative bias for variable income
relative bias for variable employed
character variable, length 25: notes about data collection
The variable attempt takes on values 1-25 for the initial fieldwork period. Values 31-40 denote the follow-up period, and value 45 gives the final estimates. The gaps in the attempt variable allow one to see the separation of the periods on the graph.
Lundquist, P. and C.-E. S<U+00E4>rndal (2013). Aspects of responsive design with applications to the Swedish Living Conditions Survey. Journal of Official Statistics 29 (4), 557<U+2013>582.
Lohr (2021), Sampling: Design and Analysis, 3rd Edition. Boca Raton, FL: CRC Press.
Lu and Lohr (2021), R Companion for Sampling: Design and Analysis, 3rd Edition, 1st Edition. Boca Raton, FL: CRC Press.