Table 2.
Parental responses to 5 questionnaire items involving digital retinal imaging for ROP, which were scored on a 5-point Likert-type scale (1=strongly disagree, 2=disagree, 3=neutral, 4=agree, 5=strongly agree).
| 5 digital retinal imaging items (Cronbach’s alpha 0.843, 79% variance explained)* | Response | |
|---|---|---|
| Mean ± SD | Range | |
| Factor 1. Quality and utility of digital retinal images (Cronbach’s alpha 0.889, 62% variance explained) | ||
| a. Digital pictures of my child’s eye findings will improve the quality of care from his/her doctor. | 4.2 ± 0.8 | 2 – 5 |
| b. Digital pictures of my child’s eye findings will help me better understanding his/her disease condition. | 4.2 ± 0.6 | 3 – 5 |
| c. Digital pictures of my child’s eye findings could diagnose disease as accurately as an actual eye exam. | 4.0 ± 0.8 | 3 – 5 |
| Factor 2. Parental opinions about digital retinal imaging (Cronbach’s alpha 0.661, 17% variance explained) | ||
| a. Digital pictures of my child’s retinopathy should be included in the permanent medical record. | 4.4 ± 0.6 | 3 – 5 |
| d. Digital cameras and computers are reliable. | 3.8 ± 0.8 | 2 – 5 |
*
Items are organized based on results of principal components factor analysis. Cronbach’s alpha and percentage of variance explained are displayed for all 5 items, as well as for each of 2 factors identified.