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The Long-term Difficulties Inventory (LDI) is a self-report questionnaire to measure long-term difficulties. It consists of 12 items referring to aspects of life, including housing, work, social relationships, free time, finances, health, school/study, and religion.
Respondents have to indicate for each aspect how they experienced these aspects with respect to difficulty and stress in the last 12 months, on a three-point scale:
Answer | Score |
---|---|
Not stressful | 0 |
Slightly stressful | 1 |
Very stressful | 2 |
Item scores are summed to derive a total score1).
Construct validity of the LDI was indicated by the positive association between the LDI scored (12 months) and:
The validation and the reliability of the LDI was performed in a study by Rosmalen et al.2)