Figure 5
Subjective evaluation of barcode scanning experience as measured by usability questionnaire (see Appendix 1) administered after tutorial/practice, first round of data entry, and second round of data entry. Frequency distribution (n total = 24) of mean scores on: A) Learnability of using a barcode scanner for data entry; B) Satisfaction after using the barcode scanner; and C) Experience with bar code scanner vs. pen entry. A mean score higher than 60% indicates agreement with statements.