Weighted Quota Strata

There are situations in which there is a need to regulate or balance the rate at which a group of strata are filled during the course of the field operation. To achieve this, you may assign a probability or weight to any stratum, in which case the system will dispatch the next respondent from a stratum randomly selected according to the assigned weights. To balance the rate of quota attainment, you may further specify that the program calculate and override the weights (smoothing). We recommend, though it is not mandatory, that weights be assigned only to mutually exclusive strata.

Negative values are treated as zeros. Automatic weights are calculated only for strata which have been manually assigned a positive weight. These weights are calculated continuously.

Note: Weighting applies both to cases which are unused and those which are in soft call-back state.