Linguistic Validation and Cultural Adaptation of the Albanian Version of the Older People’s Quality of Life Questionnaire (AL-OPQOL-35)

The Older People’s Quality of Life Questionnaire (OPQOL-35) is a validated tool used to measure quality of life in the older people in many countries. The study describes the linguistic validation, cultural adaption, and pilot testing of the Albanian version of the OPQOL-35 (AL-OPQOL-35) in older adults, confirming its internal consistency and reliability. The process of linguistic validation, cross-cultural verification and adaptation of the AL-OPQOL-35 questionnaire went through four stages: forward translation, backward translation, patient testing, and proofreading. The AL-OPQOL-35 instrument obtained after forward–backward translation was tested on a sample of 40 elderly people with chronic diseases and multimorbidity. The sample consisted of 75% females and the age group 65–74 makes up the highest percentage with 72.5%. The sample consisted of 25% with one chronic disease, while 75% had two or more chronic diseases. After the evaluation by a panel of experts and pilot testing, the AL-OPQOL-35 was found to be clear and understandable for older adults with chronic conditions and multimorbidity, showing good reliability with a Cronbach’s alpha α = 0.848. It is recommended to use the AL-OPQOL-35 instrument in a larger population and evaluate its psychometric properties.