Background So far, in China, there has been no effective or easy procedure to define the control of asthma. This study assesses the validity of Asthma Control Test in Chinese patients. Methods Three questionnaires （A...Background So far, in China, there has been no effective or easy procedure to define the control of asthma. This study assesses the validity of Asthma Control Test in Chinese patients. Methods Three questionnaires （Asthma Control Test, Asthma Control Questionnaire and the 30 second asthma test） were administered to 305 asthma patients from 10 teaching hospitals across China. Spirometry was also used. Asthma specialists rated the control of asthma according to patients＇ symptoms, medications and forced expiratory volume in first second. The patients were divided into noncontrolled group and controlled group according to the specialists＇ rating. Reliability, empirical validity and screening accuracy were conducted for Asthma Control Test scores. Screening accuracy was compared among 3 questionnaires. The patients＇ self rating and the specialists＇ rating were also compared. Results The internal consistency reliability of the 5-item Asthma Control Test was 0.854. The correlation coefficient between Asthma Control Test and the specialists＇ rating was 0.729, which was higher than other instruments. Asthma Control Test scores discriminated between groups of patients differing in the percent predicted forced expiratory volume in first second （F=-26.06, P〈0.0001）, the specialists＇ rating of asthma control （F=-88.24, P〈0.0001） and the Asthma Control Questionnaire scores （F=-250.57, P〈0.0001）. Asthma Control Test showed no significant difference with Asthma Control Questionnaire in the percent correctly classified, while the percent correctly classified by Asthma Control Test was much higher than 30 second asthma test. The patients＇ self rating was the same as assessment of the specialists （t=0.65, P=-0.516）. Conclusion The Asthma Control Test is an effective and practicable method for assessing asthma control in China.展开更多
目的:修订压力信念量表(Beliefs About Stress Scale,BASS)中文版,并在国内大学生群体中检验其信度、效度和跨性别的测量等值性。方法:采用方便取样,共选取1100名大学生进行测试,回收有效问卷960份,用以评定BASS中文版的结构效度、内部...目的:修订压力信念量表(Beliefs About Stress Scale,BASS)中文版,并在国内大学生群体中检验其信度、效度和跨性别的测量等值性。方法:采用方便取样,共选取1100名大学生进行测试,回收有效问卷960份,用以评定BASS中文版的结构效度、内部一致信度、分半信度和测量等值性,以生活取向测验(Life Orientation Test Revised,LOT-R)和大学生压力量表(Stress Scale for College Student,SSCS)为效标,4周后,随机选取90名大学生进行重测。结果:BASS中文版消极压力信念、积极压力信念与可控信念三个分量表的内部一致性信度分别为0.81、0.80和0.61,分半信度分别为0.75、0.75,0.68,重测信度分别为0.74、0.74、0.68。消极压力信念、积极压力信念、可控信念得分与大学生压力、悲观和乐观的相关系数分别为0.478、-0.162、-0.280,-0.139、0.181、0.226和0.254、-0.134、-0.256。验证性因素分析显示,三因素模型的各项拟合指数均拟合良好(χ^2/df=2.30,CFI=0.93,TLI=0.92,RMSEA=0.05,SRMR=0.05)。多组验证性因素分析结果显示,跨性别的形态等值、弱等值、强等值和严格等值模型均被接受。结论:BASS中文版具有良好的信效度以及跨性别的测量等值性,可以作为测量我国大学生群体压力信念的有效工具。展开更多
Objective This study initially validates the Chinese version of the Physical Activity Questionnaire for Older Children （PAQ-C）, which has been identified as a potentially valid instrument to assess moderate-to-vigor...Objective This study initially validates the Chinese version of the Physical Activity Questionnaire for Older Children （PAQ-C）, which has been identified as a potentially valid instrument to assess moderate-to-vigorous physical activity （MVPA） in children among diverse racial groups. Methods The psychometric properties of the PAQ-C with 742 Hong Kong Chinese children were assessed with the scale＇s internal consistency, reliability, test-retest reliability, confirmatory factory analysis （CFA） in the overall sample, and multistep invariance tests across gender groups as well as convergent validity with body mass index （BMI）, and an accelerometry-based MVPA. Results The Cronbach alpha coefficient （α=0.79）, composite reliability value （p=0.81）, and the intraclass correlation coefficient （α=0.82） indicate the satisfactory reliability of the PAQ-C score. The CFA indicated data fit a single factor model, suggesting that the PAQ-C measures only one construct, on MVPA over the previous 7 days. The multiple-group CFAs suggested that the factor Ioadings and variances and covariances of the PAQ-C measurement model were invariant across gender groups. The PAQ-C score was related to accelerometry-based MVPA （r=0.33） and inversely related to BMI （r=0.18）. Conclusion This study demonstrates the reliability and validity of the PAQ-C in Chinese children.展开更多
文摘Background So far, in China, there has been no effective or easy procedure to define the control of asthma. This study assesses the validity of Asthma Control Test in Chinese patients. Methods Three questionnaires （Asthma Control Test, Asthma Control Questionnaire and the 30 second asthma test） were administered to 305 asthma patients from 10 teaching hospitals across China. Spirometry was also used. Asthma specialists rated the control of asthma according to patients＇ symptoms, medications and forced expiratory volume in first second. The patients were divided into noncontrolled group and controlled group according to the specialists＇ rating. Reliability, empirical validity and screening accuracy were conducted for Asthma Control Test scores. Screening accuracy was compared among 3 questionnaires. The patients＇ self rating and the specialists＇ rating were also compared. Results The internal consistency reliability of the 5-item Asthma Control Test was 0.854. The correlation coefficient between Asthma Control Test and the specialists＇ rating was 0.729, which was higher than other instruments. Asthma Control Test scores discriminated between groups of patients differing in the percent predicted forced expiratory volume in first second （F=-26.06, P〈0.0001）, the specialists＇ rating of asthma control （F=-88.24, P〈0.0001） and the Asthma Control Questionnaire scores （F=-250.57, P〈0.0001）. Asthma Control Test showed no significant difference with Asthma Control Questionnaire in the percent correctly classified, while the percent correctly classified by Asthma Control Test was much higher than 30 second asthma test. The patients＇ self rating was the same as assessment of the specialists （t=0.65, P=-0.516）. Conclusion The Asthma Control Test is an effective and practicable method for assessing asthma control in China.
文摘目的:修订压力信念量表(Beliefs About Stress Scale,BASS)中文版,并在国内大学生群体中检验其信度、效度和跨性别的测量等值性。方法:采用方便取样,共选取1100名大学生进行测试,回收有效问卷960份,用以评定BASS中文版的结构效度、内部一致信度、分半信度和测量等值性,以生活取向测验(Life Orientation Test Revised,LOT-R)和大学生压力量表(Stress Scale for College Student,SSCS)为效标,4周后,随机选取90名大学生进行重测。结果:BASS中文版消极压力信念、积极压力信念与可控信念三个分量表的内部一致性信度分别为0.81、0.80和0.61,分半信度分别为0.75、0.75,0.68,重测信度分别为0.74、0.74、0.68。消极压力信念、积极压力信念、可控信念得分与大学生压力、悲观和乐观的相关系数分别为0.478、-0.162、-0.280,-0.139、0.181、0.226和0.254、-0.134、-0.256。验证性因素分析显示,三因素模型的各项拟合指数均拟合良好(χ^2/df=2.30,CFI=0.93,TLI=0.92,RMSEA=0.05,SRMR=0.05)。多组验证性因素分析结果显示,跨性别的形态等值、弱等值、强等值和严格等值模型均被接受。结论:BASS中文版具有良好的信效度以及跨性别的测量等值性,可以作为测量我国大学生群体压力信念的有效工具。
基金funded by the General Research Fund(GRF)from Research Grants Council of Hong Kong(to PWCL,project number:GRF 244913)
文摘Objective This study initially validates the Chinese version of the Physical Activity Questionnaire for Older Children （PAQ-C）, which has been identified as a potentially valid instrument to assess moderate-to-vigorous physical activity （MVPA） in children among diverse racial groups. Methods The psychometric properties of the PAQ-C with 742 Hong Kong Chinese children were assessed with the scale＇s internal consistency, reliability, test-retest reliability, confirmatory factory analysis （CFA） in the overall sample, and multistep invariance tests across gender groups as well as convergent validity with body mass index （BMI）, and an accelerometry-based MVPA. Results The Cronbach alpha coefficient （α=0.79）, composite reliability value （p=0.81）, and the intraclass correlation coefficient （α=0.82） indicate the satisfactory reliability of the PAQ-C score. The CFA indicated data fit a single factor model, suggesting that the PAQ-C measures only one construct, on MVPA over the previous 7 days. The multiple-group CFAs suggested that the factor Ioadings and variances and covariances of the PAQ-C measurement model were invariant across gender groups. The PAQ-C score was related to accelerometry-based MVPA （r=0.33） and inversely related to BMI （r=0.18）. Conclusion This study demonstrates the reliability and validity of the PAQ-C in Chinese children.
