Spanish translation, retranslation, and content validation of the Quality of Life in Alzheimer’s Disease scale in patients with Alzheimer’s dementia

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Published on 25 de julio de 2023 | http://doi.org/10.5867/medwave.2023.06.2681

Spanish translation, retranslation, and content validation of the Quality of Life in Alzheimer’s Disease scale in patients with Alzheimer’s dementia

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Ratio of Lawshe’s content validity for each item.

Dimension		Content Score	RVC Lawshe
1. Physical health	To begin, how do you feel about your physical health? Would you say it is poor, fair, good, or excellent?Circle the option that best describes your physical health at this time.	14	0.87
2. Energy	How do you feel about your energy level, vitality, etc.? Do you think it is poor, fair, good, or excellent?If the participant says some days are better, ask him/her to indicate how he/she has been feeling in general lately. Use the categories of Bad, Fair, Good (good), or Excellent.	15	1
3. Mood	How has your mood been lately? Have you felt good, or have you felt depressed? Would you rate your mood as bad, fair, good, or excellent?	13	0.73
4. Living conditions	What can you say about your living conditions?How do you feel about the place where you currently live?Would you rate it as poor, fair, good, or excellent?	11	0.47¹
5. Memory	How is your memory? Would you say it is poor, fair, good, or excellent?	15	1
6. Family	How is your relationship with your family members and would you describe it as poor, fair, good, or excellent?If the respondent says he/she has no family, ask about brothers, sisters, children, nieces, and nephews, and repeat the question.	15	1
7. Marriage	How do you feel about your marriage or relationship? How is your relationship with (spouse’s name) _________? Do you think it is bad, fair, good, or excellent?Some individuals will be single, widowed, or divorced. In this case, ask how they feel about the person with whom they have the closest relationship, whether it is a family member or friend. If someone in the family acts as their caregiver, ask them how their relationship is with that person.If there is no one suitable or if the participant is unsure, rate the item as "no response".If the individual’s rating is based on his/her relationship with someone other than his/her spouse, note it and record the relationship in the comments section.	15	1
8. Friends	What is your opinion of your current relationship with your friends? Would you say it is bad, fair, good, or excellent? If the respondent answers that he/she has no friends or that all his/her friends have died, continue asking. Apart from your family, is there any person you like to be with? Would you say that this person is your friend? If the participant continues to say that he/she has no friends, ask: How do you feel about not having friends: is it a bad, fair, good, or excellent situation?	15	1
9. Yourself	How do you feel about yourself? When you think about yourself as a whole and the different aspects of your life, would you say you feel bad, fair, good, or excellent?	15	1
10. Ability to do household chores	How do you feel about your ability to do chores around the house or anything else you have to do? Would you say it is poor, fair, good, or excellent?	12	0.60
11. Ability to do things for fun	How do you feel about your ability to do things for fun and enjoyment? Would you say it is poor, fair, good, or excellent?	13	0.73
12. Economic situation	How do you feel about your current financial situation? Would you say it is poor, fair, good, or excellent?If the participant hesitates, explain that you do not want to know their situation (i.e., how much money they have) but only how they feel about it.	15	1
13. Life in general	How do you feel about your life in general? When you think about your life as a whole, how do you feel about it? Would you say it is bad, fair, good, or excellent?	11	0.47¹

CVR, content validity ratio.

Notes: ¹0.49 cut-off value.

Source: Prepared by the authors.