For the outcome of actual choice, self-report bias may have been mitigated because data was also extracted from the patients' health record for verification of the data.
We did not search in cancer registers or relatives' medical records for verification of the information obtained from interviews.
Interesting in this context is the impact that an external shock, such as the onset of economic recession in 2008/9, appears to have had on nurses/midwives' intent to emigrate, with record number of verifications issued in those years, equating to approximately 3000 individual nurses/midwives in each of those years.
Results were manually cross-checked against Statistics Canada records for verification.
The address and telephone number of respondents were recorded for purposes of verification, if required.
In addition, the use of antidepressants was based on medical records without verification of dose-compliance from the pregnant women.
The lack of standardisation of clinical records meant that verification of such reports was not possible.
Expired gases passed through a flow sensor and ventilation was measured and recorded as verification of respiration intensity (Vmax 22 Metabolic Measurement Cart, SensorMedics, Yorba Linda, CA).
The CA keeps a record of the timestamp for future verification.
The recording and verification of emissions creates uncertainty, as does the entry of new countries into the system".
It turns out, as we later learned at the Canadian Embassy in Washington DC, that the request for "criminal rehabilitation" is a long, complex process that entails getting court records, police records, fingerprints, verification of residence for 10 years -- 18 pages of information.
