Table 1.
Definitions of evaluation criteria
| Importance: | Relates to the quality of having significance to the profession; acceptance by competent professionals may be indicative of importance [22, 25]. |
| Precision and clarity: | Relates to being clear and whether the areas discussed in the model are consistent; this further relates to whether the descriptions of the assumptions, concepts and principles are clearly formulated [23–25]. |
| Parsimony and simplicity: | Signify being simple and uncomplicated [25]. |
| Comprehensiveness: | Relates to covering the broad and substantive areas of Interest [25]. |
| Operationality: | Relates to being specific enough to be testable and measurable [25]. |
| Logical structure: | Relates to the degree with which the visual diagram represents and simplifies the understanding of the theory [23]. |
| Validity: | Relates to being valid and offering an accurate representation of the study conducted [25]. |
| Practicality: | Relates to providing a conceptual framework for practice, education and research and being of use to the profession [24, 25]. |