Table 3.
Study II questionnaire data.
| ID | Q1. How often do you use earplug hearing protectors on the job? | Q2. How often do you think you should be wearing hearing protectors on the job to protect your hearing? | Q3. On days when you do use earplugs how long are they worn for? | Q4. Please evaluate your confidence with proper insertion of earplugs prior to tutorial. | Q5. Please evaluate your confidence with proper insertion of earplugs after completion of tutorial. | Q6a. Physical discomfort from earplugs upon insertion. | Q6b. Physical discomfort from earplugs due to heat after prolonged use. | Q6c. Physical discomfort from earplugs due to humidity after prolonged use. | Q6d. Discomfort (or inconvenience) due to communication difficulties (e.g., interference with speech or alarms). |
|---|---|---|---|---|---|---|---|---|---|
| P01 | 2 | 1 | 2 | 3 | 4 | 2 | 2 | 2 | 3 |
| P02 | 1 | 1 | 2 | 4 | 4 | 1 | 1 | 1 | 1 |
| P03 | 2 | 1 | 2 | 3 | 4 | 1 | 2 | 2 | 3 |
| P04 | 1 | 1 | 2 | 2 | 4 | 1 | 1 | 1 | 1 |
| P05 | 2 | 2 | 1 | 2 | 3 | 3 | 2 | 3 | 2 |
| P06 | 4 | 3 | 2 | 2 | 4 | 1 | 1 | 1 | 3 |
| P07 | 2 | 1 | 3 | 4 | 4 | 1 | 1 | 1 | 1 |
| P08 | 2 | 1 | 1 | 2 | 4 | 1 | 1 | 1 | 2 |
| P09 | 4 | 1 | 4 | 3 | 4 | 2 | 3 | 3 | 3 |
| P10 | 4 | 1 | 1 | 4 | 4 | 1 | 1 | 1 | 3 |
| P11 | 4 | 1 | 1 | 3 | 4 | 1 | 1 | 1 | 3 |
| P12 | 3 | 2 | 1 | 3 | 4 | 1 | 1 | 1 | 1 |
| P13 | 2 | 4 | 2 | 2 | 2 | 3 | 4 | 4 | 4 |
| P14 | 1 | 1 | 2 | 4 | 4 | 1 | 3 | 3 | 3 |
| Mean | 2.43 | 1.50 | 1.86 | 2.93 | 3.79 | 1.43 | 1.71 | 1.79 | 2.36 |
| Mode | 2 | 1 | 2 | 3 | 4 | 1 | 1 | 1 | 3 |
Data include all questionnaire results.