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Dewis pwnc arall neu clirio pob hidlydd.
Rhyddhawyd ar: 23 August 2018 | Methodoleg
This background note provides an overview of the quality of the International Passenger Survey (IPS) for estimating international migration flows and has been updated following additional work carried out during 2017. This includes the implementation of electronic questionnaires on tablets to replace the current paper questionnaires, an out-of-hours pilot, and a comparison of how other countries measure long-term immigration.
