title: The generalizability of Caregiver Strain Index in family caregivers of cancer patients.
abstract: The purpose of this study was to estimate the variance components associated with individual differences and various sources of measurement error of Caregiver Strain Index (CSI). A two-facet (item and occasion) crossed design generalizability study (G study) was conducted using a sample of 14 caregivers of cancer patients. Based on the findings of the G study, alternative decision studies were then designed to search for optimal generalizability of CSI. The measurement of CSI was not reliable with a single test. Averaging two or more measurements would make CSI scores more generalizable for either relative or absolute assessment of caregiver strain.
authors.affiliation: Graduate Institute of Nursing, Chang Gung University, 259 Wen-Hua 1st Road, Kwei-Shan, Tao-Yuan, Taiwan. mechen1@mail.cgu.edu.tw
authors.forename: Mei-Ling
authors.initials: ML
authors.lastname: Chen
authors.forename: Ling-Chen
authors.initials: LC
authors.lastname: Hu
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D017028:Caregivers / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000523:psychology*; D009730:Nursing Assessment / Q000379:methods*; D015203:Reproducibility of Results; D013315:Stress, Psychological / Q000175:diagnosis* / Q000209:etiology / Q000523:psychology