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	Zarit Burden Interview	Tilburg Frailty Indicator
Campo	Social Gerontology	Social Gerontology
Famiglia	Latent structure	Latent structure
Anno di origine	1980	2010
Ideatore	Steven H. Zarit, Karen E. Reever, Julie Bach-Peterson	Robbert J. J. Gobbens and colleagues (Tilburg University)
Tipo	Self-report caregiver burden scale	Self-report multidimensional frailty screening questionnaire
Fonte seminale	Zarit, S. H., Reever, K. E., & Bach-Peterson, J. (1980). Relatives of the Impaired Elderly: Correlates of Feelings of Burden. The Gerontologist, 20(6), 649-655.	Gobbens, R. J. J., van Assen, M. A. L. M., Luijkx, K. G., Wijnen-Sponselee, M. T., & Schols, J. M. G. A. (2010). The Tilburg Frailty Indicator: Psychometric Properties. Journal of the American Medical Directors Association, 11(5), 344-355.
Alias	ZBI, Zarit Caregiver Burden Interview, Caregiver Burden Inventory (Zarit), Zarit Burden Scale	TFI, Tilburg Frailty Index, Integral Frailty Self-Report, Multidimensional Frailty Questionnaire
Correlati	3	3
Sintesi	The Zarit Burden Interview (ZBI) is the most widely used self-report measure of caregiver burden — the physical, emotional, social, and financial strain experienced by people who care for an impaired older relative, most often someone with dementia. Originating in Steven Zarit, Karen Reever, and Julie Bach-Peterson's 1980 study of relatives of impaired elderly, the instrument asks caregivers to rate how often they feel a series of burdens, such as feeling that caregiving harms their health, social life, or finances, or that they could do a better job. The standard version has 22 items rated 0 (never) to 4 (nearly always), summing to a 0–88 total in which higher scores mean greater burden. Short forms (12-item) and a 4-item screen exist for quick assessment. The ZBI is a cornerstone of family-gerontology and dementia-care research and a routine outcome in caregiver-support interventions.	The Tilburg Frailty Indicator (TFI) is a self-report questionnaire that measures frailty in older adults across three domains — physical, psychological, and social. Developed by Robbert Gobbens and colleagues at Tilburg University and published in 2010, it operationalizes an explicit 'integral conceptual model of frailty' in which frailty is a dynamic state arising from losses in one or more functioning domains, itself driven by life-course determinants such as age, sex, multimorbidity, and life events. Part A of the instrument records these determinants; Part B comprises 15 items that sum to a 0–15 frailty score, with a cut point of 5 commonly used to flag frailty. Unlike purely physical phenotypes, the TFI deliberately incorporates psychological (mood, anxiety, coping, cognition) and social (living alone, social relationships, support) components, reflecting the social-gerontological view that frailty is more than a biomedical syndrome.