Methods of assessing the reliability of observations, techniques for transforming very large amounts of qualitative data, and methods for aggregating qualitative data or findings from several sites have been developed.
There has been a recent development in methods of assessing reliability of observations, techniques for transforming very large amounts of qualitative data, and methods for aggregating qualitative data or findings from several sites
If retail activities of rural carriers were not counted, then this slight difference would be further reduced.