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农村电话市场现状和开发策略研究 被引量:1
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作者 章国栋 余章坤 《通信世界》 2002年第35期32-33,共2页
关键词 农村电话市场 开发策略 中国 电话普及率 人口流动性 信息需求度
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Reliability and validity of the Chinese version of the Head and Neck Information Needs Questionnaire for patients with head and neck cancer and their caregivers 被引量:1
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作者 Yu Li Lihui Liu +4 位作者 Rong Yan Chunxiang Su Hong Guo Xiaoyu Li Shujin Yue 《International Journal of Nursing Sciences》 CSCD 2021年第3期354-360,I0008,I0009,共9页
Objectives:This study aimed to assess the reliability and validity of the Chinese version of the Head and Neck Information Needs Questionnaire(HaNiQ).Methods:The HaNiQ was translated into a Chinese version using inter... Objectives:This study aimed to assess the reliability and validity of the Chinese version of the Head and Neck Information Needs Questionnaire(HaNiQ).Methods:The HaNiQ was translated into a Chinese version using internationally recognized forwardand back-translation procedures.The reliability and validity of the HaNiQ were measured using Cronbach’s a coefficient,split-half reliability,exploratory factor analysis,and Pearson correlation analysis.Results:A total of 207 patients in different head and neck cancer(HNC)stages and 174 caregivers completed the Chinese version of the HaNiQ.Internal consistencies varied between good and very well(Cronbach’s α coefficient 0.74-0.90);the split-half coefficient and the content validity index(CVI)of the questionnaire were 83.5%and 83.33%,respectively.The cumulative contribution rates of the 5 subscales in patients with HNCand their caregivers were 62.41%and 61.19%,respectively.However,there are some differences between the Chinese questionnaire for caregiver and the original questionnaire regarding the attribution of items.Items 22,23,and 27 in the Psychosocial subscale of the English version were assigned to the Survivorship subscale in the Chinese version for caregivers.Conclusions:The results demonstrated that the Chinese version of the HaNiQ is a reliable and valid instrument for measuring the information needs of patients with HNC and that of their caregivers.Though the structure of the Chinese versionwas different from the English version for caregivers of HNC patients,the Chinese version of the HaNiQ appears to be reliable and would benefit from further testing. 展开更多
关键词 CAREGIVERS CHINESE Head and neck neoplasms Needs assessment RELIABILITY Surveys and questionnaires Validity
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单个关键词出现概率与信息量的关系 被引量:1
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作者 程莉 吴广印 王鑫 《情报科学》 CSSCI 北大核心 2015年第12期62-65,82,共5页
基于网络信息检索,从理论上和实证上探讨单个关键词出现概率与信息量的关系。分析不同概率的检索词在需求表达信息量上的差异,在信息需求的多维描述基础上研究高频关键词在需求信息量上对低频关键词的排挤效应。针对这种排挤效应,结合... 基于网络信息检索,从理论上和实证上探讨单个关键词出现概率与信息量的关系。分析不同概率的检索词在需求表达信息量上的差异,在信息需求的多维描述基础上研究高频关键词在需求信息量上对低频关键词的排挤效应。针对这种排挤效应,结合叙词表词间关系提出了关键词归类去重的检索相关性测量方案。 展开更多
关键词 出现概率 信息 信息需求 检索相关性
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