Incomplete reporting did not permit the assessment of representativeness of workers in a few studies.
However, the Board's survey is voluntary and most likely incomplete, so we cannot establish our data's representativeness.
In using the data from administrative sources and cohort studies, the information is also subjected to the inherent biases, such as lack of representativeness, absence of longitudinal data, missing or incomplete data, and diagnostic inaccuracies.
The assessment of representativeness in terms of socio-economic criteria remains incomplete since these variables are not part of the Cancer Registry.
Other potential sources of bias we assessed were representativeness [ 36], selective inclusion [ 36, 37] and incomplete outcome assessment [ 36, 38, 41].
Constrained by the limited representativeness of such a sample set, the obtained soil maps are often incomplete in spatial coverage with "gaps" at the locations which cannot be well represented by these samples.
16 This approach considered five elements: 1) representativeness of the study; 2) ascertainment of exposure; 3) selective reporting; 4) incomplete outcome data; and 5) assessment of outcome.
This inconsistency may be caused by their incomplete data, which only includes three provinces (Guangdong, Liaoning, and Sichuan) and thus lacks national representativeness.
Surveys, Verba argues, achieve representativeness through science.
They also identified problems with the data quality and representativeness.
