MODE AND LANGUAGE EVALUATION OF GENERIC MEASURES

我们建议评估管理模式（自我管理与访谈者管理）和管理语言（英语与西班牙语）对四种主要通用健康相关生活质量（HRQOL）测量（SF-36、EQ-5D、幸福质量量表、健康效用指数）的影响。该项目的具体目的是：1)根据管理方式和管理语言评估4个通用HRQOL测量在缺失数据、集中趋势、方差、信度、项目难度和项目歧视（斜率）方面的心理测量等效性；2)检验对相同HRQOL测量的自我和访谈者管理的反应之间的相关性，以及不同测量方法测量的相同结构之间的相关性；3)从访谈者提供的反馈中预测自我提供的HRQOL反馈（反之亦然）；4)评估不同措施下受访者自我管理与访谈者管理的负担；5)评估4种通用HRQOL测量方法的英语和西班牙语可读性。

We propose to assess the impact of mode of administration (self-administered versus interviewer administered) and language of administration (English versus Spanish) on response to four leading generic health-related quality of life (HRQOL) measures (SF-36, EQ-5D, Quality of Well-Being scale, Health Utilities Index). The specific aims of this project are to: 1) evaluate the psychometric equivalence by mode and language of administration for the 4 generic HRQOL measures in terms of missing data, central tendency, variance, reliability, item difficulty, and item discrimination (slopes); 2) examine correlations between self and interviewer-administered responses to the same HRQOL measure, and between the same constructs measured by different measures; 3) predict self-administered HRQOL responses from interviewer-administered responses (and vice versa); 4) estimate the respondent burden of self-administration versus interviewer-administration for the different measures; and 5) estimate the English and Spanish language readability of the 4 generic HRQOL measures. This 48-month effort will involve two primary data collection activities. First, we propose to supplement the baseline data collection in the three centers (UCSD, UCLA, University of Wisconsin) of Project 2 (n =200 arthritis--hip replacement, n = 200 vision impairment--cataract extraction with lens replacement, n =200 heart failure--medication treatment) by conducting 600 telephone interviews. Second, we will collect data from 400 adult Hispanic patients (200 English-speaking and 200 Spanish-speaking) from two sites in Los Angeles: AltaMed Senior BuenaCare and Roybal Comprehensive Health Center. This project will provide essential information about the equivalence of SF-36, QWB, HUI, and EQ-5D data collected in different modes and language of administration. Results will enable researchers to decide whether it is appropriate to pool data by mode and language. In addition, the study will yield information that will allow estimates of responses in one mode of administration (e.g., self-administered) from the other (e.g., interviewer-administered). If the results show that the different modes of assessment are equivalent or at least predictable from one another, then this will allow greater flexibility in collecting data using different modes and mixed mode data collection. In addition, the study will provide important information about the readability of widely used generic HRQOL measures that can be useful in deciding the appropriateness of their use with lower-educated and less literate subgroups.