Cross-cultural adaptation of assessments for time-related abilities of Indian older adults and evaluation of their reliability and validity

Background Older adults may have difficulties in daily time management due to age-related or disease-related cognitive impairment. Standardised assessments for time-related abilities are currently unavailable in India.Aim The study aimed to adapt the Kit for Assessing Time-processing Ability–Senior (KaTid-Senior) and Time-Self rating, Senior (Time-S Senior) for daily time management of Indian older adults, translate these into an Indian language, and evaluate the reliability and validity of the adapted assessments.Materials and methods The two Swedish-origin assessments were reviewed, adapted for linguistic and cultural relevance into English, and translated into Kannada language. Older adults (n = 128) were conveniently selected, assessed with the Montreal Cognitive Assessment, and assigned to age and gender-matched groups: cognitively-impaired and cognitively-normal. Data was then collected with the adapted assessments.Results Both adapted assessments demonstrated acceptable reliability (internal consistency) in this sample (α =0.89 − 0.90). The cognitively-impaired group had significantly (p < 0.001) lower scores on the assessments as compared to the cognitively-normal group. There was a strong to moderate correlation between the assessments supporting their convergent validity.Conclusions The adapted assessments are reliable and valid in the Indian context.Significance The study would facilitate contextually-relevant assessment and management of time-related abilities in Indian older adults.