Table 7.
Comparison of internal consistency of validated Dundee Ready Education Environment Measure (DREEM) versions in different countries
| Country | Cronbach alfa total scale | Cronbach alfa—subscales |
|---|---|---|
| Poland—our | 0.929 |
I 0.851, II 0.783, III 0.725 IV 0.785, V 0.596 |
| Spain | 0.92 |
I 0.75, II 0.79, III 0.69 IV 0.75, V 0.57 |
| Greece | 0.9 |
I 0.79, II 0.78, III 0.69 IV 0.68, V 0.48 |
| Sweden | 0.93 |
I 0.807, II 0.785, III 0.720 IV 0.786, V 0.689 |
| Poland—UJ | 0.93 |
I 0.86, II 0.82, III 0.61 IV 0.75, V 0.61 |
| Indonesia | 0.83 | III 0.594, V 0.32, the other subscales > 0.7 |
| Pakistan | 0,89 |
I 0.72, II 0.73, III 0.67 IV 0.64, V 0.38 |
| Iran | 0,914 |
I 0.722, II 0.739, III 0.759 IV 0.771, V 0.446 |
| Germany | 0.92 |
I 0.84, II 0.75, III 0.68 IV 0.75, V 0.57 |
| Mexico | 0.93 |
I 0.84, II 0.8, III 0.76 IV 0.78, V 0.56 |
| USA | 0.93 |
I 0.85, II 0.79, III 0.81 IV 0.68, V 0.72 |
| Ireland | 0.89 |
I 0.78, II 0.69, III 0.74 IV 0.56, V 0.55 |