Table 5.
Convergent and divergent validity, internal consistency, and construct reliability of the Treatment Adherence Questionnaire for Patients with Combat Post-Traumatic Stress Disorder
| Factor | α | Θ | Ω | CR | First-order | Second-order | ||
|---|---|---|---|---|---|---|---|---|
| AVE | MSV | ASV | AVE | |||||
| Maintenance of treatment (six item) | 0.852 | 0.827 | 0.825 | 0.856 | 0.502 | 0.549 | 0.536 | 0.804 |
| Follow-up and treatment contribution (five item) | 0.843 | 0.811 | 0.823 | 0.846 | 0.526 | 0.523 | 0.511 | |
| Purposefulness and responsibility (six item) | 0.838 | 0.820 | 0.840 | 0.845 | 0.480 | 0.549 | 0.524 | |
Abbreviations: α, Cronbach’s alpha coefficient; θ, Theta coefficient; Ω, McDonald Omega coefficient; CR, construct reliability; ASV, average shared squared variance; MSV, maximum shared squared variance; AVE, average variance extracted.