Table 2. EFA and reliability analysis of health information evaluation.
| Factor | Item | Factor loading | Cronbach's alpha | |||
|---|---|---|---|---|---|---|
| Factor 1 | Factor 2 | Factor 3 | Factor 4 | |||
| Relevance of health information on the site | The content of the information is easy to understand. | 0.760 | - | - | - | 0.777 |
| The content of the information is generally beneficial. | 0.702 | - | - | - | ||
| The content of the information is appropriate for my level. | 0.688 | - | - | - | ||
| The information is suitable for the public situation. | 0.601 | - | - | - | ||
| The information contains enough of what I need. | 0.556 | - | - | - | ||
| Usefulness of information in making health decisions | The information is sufficiently detailed. | - | 0.765 | - | - | 0.724 |
| The length of the information is appropriate. | - | 0.650 | - | - | ||
| The information helps me choose prevention/diagnosis/treatment methods. | - | 0.626 | - | - | ||
| The information is timely/appropriate. | - | 0.560 | - | - | ||
| Comprehensiveness of information | It shows us how to get additional information or ask for help when using health information. | - | - | 0.810 | - | 0.620 |
| It provides precautions for use of the information. | - | - | 0.743 | - | ||
| Effective visualization of information | Visual data help convey the information. | - | - | - | 0.810 | 0.704 |
| Multimedia video resources help us understand the information. | - | - | - | 0.788 | ||
| Eigenvalue | 2.488 | 2.332 | 1.817 | 1.619 | - | |
| Cumulative variance ratio (%) | 19.142 | 37.081 | 51.059 | 63.512 | - | |
EFA = exploratory factor analysis.