Understanding Society User Support

Dear Hsin Chen,

To answer your first question, you should read the guide and pay attention to OSM (original sample members) and TSM (temporary sample members). Also take into account newborns, rising 16 year olds and death to understand why there is some mismatch between people across waves.

To answer your second question, we strongly recommend using the provided weights that have taken into account all the points mentioned above as well as many other. But if you want to create your own nonresponse correction different from ours, here is how we create the wave 5 longitudinal weight (read more details in the technical part of the documentation on weights):

"The base weight for enumeration is equal to D_PSNENIP13_LW, scaled to the mean of 1, for the original part of the sample; and is equal to D_PSNENIP_XW scaled to the mean of 1 for the 2010 refreshment part of the sample. Conditional on nonzero value for the base weight, the nonresponse between wave 4 and 5 is modeled. The newborns are assigned the weight of their biological mother. The resulting weight, scaled to the mean of 1, is called E_PSNENI1_LW."

Essentially, considering the longitudinal structure of the data and recognizing that attrition occurs between waves 1 and 4, we do not provide separate design weight. But if it helps, IP (both original and refreshment) have almost an equal probability sample designs.

Hope this helps,
Olena

Thank you Jakob and Olena