Research Article

A Data Quality Control Program for Computer-Assisted Personal Interviews

Table 2

Missing data over the two years of the TREC Project 1.

Missing rateYear 1Year 2 Total (Year 1 + Year 2)
FrequencyPercentFrequencyPercentFrequencyPercentCumulative percent

No missing00113575.2113537.837.9
0%~1%0022214.72227.445.3
1%~2%00956.3953.248.5
2%~3%101067.6332.2104334.783.3
3%~4%38125.580.538913.096.3
4%~5%704.780.5782.698.9
5%~10%261.730.2291.099.9
>10%60.460.4120.4100.0

Total1493100.01510100.03003100.0ā€‰