Table 4 Standardized factor loadings, error variances (brackets), factor correlations, and reliability estimates for the HeartQoL (n = 314)
From: Translation and evaluation of the HeartQoL in patients with coronary heart disease in Iceland
Two-factor baseline model | Two-factor modified modela | |||||
|---|---|---|---|---|---|---|
Items | Physical subscale | Emotional subscale | Physical subscale | Emotional subscale | ||
Physical subscale | ||||||
1. Walk indoors on level ground? | 0.79 (0.38) | 0.80 (0.37) | ||||
2. Garden, vacuum, or carry groceries? | 0.87 (0.24) | 0.88 (0.23) | ||||
3. Climb a hill or a flight of stairs without stopping? | 0.89 (0.20) | 0.86 (0.26) | ||||
4. Walk more than 100 yards at a brisk pace? | 0.88 (0.22) | 0.85 (0.28) | ||||
5. Lift or move heavy objects? | 0.85 (0.28) | 0.86 (0.26) | ||||
6. Feeling short of breath? | 0.78 (0.40) | 0.79 (0.38) | ||||
7. Being physically restricted? | 0.85 (0.29) | 0.85 (0.28) | ||||
8. Feeling tired, fatigued, low on energy? | 0.81 (0.34) | 0.70 (0.34) | 0.21 (0.34) | |||
13. Being limited in doing sports or exercise? | 0.74 (0.45) | 0.75 (0.44) | ||||
14. Working around the house or yard? | 0.91 (0.18) | 0.91 (0.17) | ||||
Emotional subscale | ||||||
9. Not feeling relaxed and free of tension? | 0.93 (0.14) | 0.24 (0.30) | 0.70 (0.30) | |||
10. Feeling depressed? | 0.86 (0.27) | 0.91 (0.18) | ||||
11. Being frustrated? | 0.74 (0.45) | 0.77 (0.40) | ||||
12. Being worried? | 0.78 (0.39) | 0.83 (0.31) | ||||
Factor correlation | 0.57 | 0.47 | ||||
Reliability | ||||||
Ordinal alpha | 0.96 | 0.90 | ||||
Traditional Cronbach’s alpha | 0.93 | 0.84 | ||||
Composite reliability | 0.91 | 0.85 | 0.85 | 0.63 | ||