Main sample | Convenience sample | |||
---|---|---|---|---|
Item-Total Statistics | Test–retest reliability | |||
Cronbach's Alpha for the whole Scale | 0.727 | Assessment 1: 0.851 and assessment 2: 0.854 | ||
Cronbach's Alpha | Corrected Item- | Cohens kappaw | Absolute reliability (ICC) | |
if Item Deleted | Total Correlation | |||
For the whole scale | 0.71 | 0.95 | ||
GDS1 "Are you basically satisfied with your life?" | 0.709 | 0.394 | 1.0 | 1.0 |
GDS2 "Have you dropped many of your activities and interests?" | 0.720 | 0.284 | 0.62 | 0.76 |
GDS3 "Do you feel that your life is empty?" | 0.697 | 0.459 | 0.66 | 0.82 |
GDS4 "Do you often get bored?" | 0.707 | 0.392 | 0.52 | 0.69 |
GDS5 "Are you in good spirits most of the time?" | 0.711 | 0.363 | 0.91 | 0.96 |
GDS6 "Are you afraid that something bad is going to happen to you?" | 0.729 | 0.186 | 0.49 | 0.66 |
GDS7 "Do you feel happy most of the time?" | 0.701 | 0.454 | 0.69 | 0.82 |
GDS8 "Do you often feel helpless?" | 0.700 | 0.442 | 0.57 | 0.73 |
GDS9 "Do you prefer to stay at home rather than going out and doing new things?" | 0.740 | 0.070 | 0.47 | 0.64 |
GDS10 "Do you feel you have more problems with memory than most?" | 0.735 | 0.118 | 0.62 | 0.77 |
GDS11 "Do you think it is wonderful to be alive now?" | 0.710 | 0.394 | 0.70 | 0.83 |
GDS12 "Do you feel pretty worthless the way you are now?" | 0.697 | 0.456 | 0.69 | 0.82 |
GDS13 "Do you feel full of energy?" | 0.721 | 0.281 | 0.79 | 0.89 |
GDS14 "Do you feel that your situation is hopeless?" | 0.698 | 0.494 | 0.57 | 0.73 |
GDS15 "Do you think that most people are better off than you are?" | 0.719 | 0.274 | 0.66 | 0.80 |