Reliability and validity of the Children's Health Survey for Asthma
Reliability and validity of the Children's Health Survey for Asthma
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DOI：
10.1542/peds.104.6.e71
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发表时间：
1999-12-01
期刊：
影响因子：
8
通讯作者：
Weiss, KB
中科院分区：
文献类型：
--
作者：
Asmussen, L;Olson, LM;Weiss, KB
目标。描述哮喘儿童健康调查(CHSA)的心理测量学特性。CHSA是一种针对5-12岁慢性哮喘儿童父母的特定条件、自我报告、功能性健康的测量方法。两项横断面研究和一项纵向研究的数据被用来评估CHSA的内部一致性信度、重测信度和效度。在三项研究中的一项中，超过275名哮喘儿童的父母和监护人完成了CHSA。合并后的样本包括按儿童年龄和种族/族裔以及父母的婚姻和社会经济状况划分的不同类型的受访者。计算了五个领域的得分：身体健康、活动(儿童)、活动(家庭)、情绪健康(儿童)和情绪健康(家庭)。原始量表得分从0到100，得分越高，表明结果更好或更积极。在三个样本中，平均量表得分从最低的61.5(儿童的情绪健康)到最高的86.1(活动[家庭])。每个量表的内部一致性信度都很高(Cronbach‘s Alpha=.81-.92)，重测信度(形式之间的相关性)在0.62到0.86之间。近期症状活动度低的患者与中度至高度的患者相比，五个量表中的四个量表的平均得分存在显著差异。在三个测验中，CHSA具有较强的信度和效度。描述性统计显示了一系列量表分数。内部一致性好于优秀，短期重测信度好于五个量表。结构效度是通过CHSA区分疾病严重程度的能力来证明的，由症状活动定义。
Objective. Describe the psychometric properties of the Children's Health Survey for Asthma (CHSA)- a condition-specific, self-report, functional health measure for parents of children 5 to 12 years of age with chronic asthma.Method. Data from two cross-sectional and one longitudinal study were used to assess internal consistency reliability, test-retest reliability, and validity of the CHSA. Over 275 parents and guardians of children with asthma completed the CHSA in one of three studies. The combined samples included a heterogenous mix of respondents by child age and race/ethnicity and parental marital and socioeconomic status. Five domain scores were computed: physical health, activity (child), activity (family), emotional health (child), and emotional health (family). Raw scale scores were transformed from 0 to 100 with higher scores indicating better or more positive outcomes.Results. Across the three samples, mean scale scores ranged from a low of 61.5 (emotional health of the child) to a high of 86.1 (activity [family]). Internal consistency reliability for each of the scales was high (Cronbach's alpha = .81-.92), and test-retest reliability (correlation between forms) ranged from .62 to .86. Significant differences in mean scores for four of five scales were noted between those with low versus moderate to high recent symptom activity.Conclusion. In three tests, the CHSA displays strong reliability and validity. Descriptive statistics demonstrate a range of scale scores. Internal consistency is good to excellent and short-term test-retest reliability is good for each of the five scales. Construct validity is demonstrated by the ability of CHSA to distinguish levels of disease severity, defined by symptom activity.