School of Occupational Therapy, National Taiwan University, 100 Taipei, Taiwan.
J Rehabil Med. 2013 Jan;45(1):99-104. doi: 10.2340/16501977-1052.
The purpose of this study is to examine the psychometric properties of the Chinese version of the Paediatric Volitional Questionnaire (PVQ-C) for use amongst preschoolers in Taiwan.
Forty preschoolers with developmental delays were randomly selected from northern Taiwan, along with another 40 typically developing preschoolers. The data was analysed using Rasch measurement model for construct validity and classical test theory for item reliability, intra- and inter-rater reliability, and convergent validity.
The results indicated the PVQ items of PVQ-C fit into a unidimensional continuum of volition (logit -6.63~3.05) with 2 items representing differential item functioning for diagnostic group. The person-fit statistics showed that 83% participants' response could be appropriately estimated and stratified (separation index = 1.86). Using a modified 3-point rating scale resulted in acceptable item reliability (0.97), intra-rater reliability (0.412-1.0), 86% PVQ items in test-retest reliability > 0.4, and convergent validity (r = 0.562-0.656).
The PVQ-C is regarded as a reliable and valid instrument for assessing the volitional status of children, as a reference for subsequent clinical judgement, and for client-centred intervention programmes and treatment effects.
本研究旨在检验中文版儿童意志问卷(PVQ-C)在台湾学龄前儿童中的心理测量特性。
从台湾北部随机抽取 40 名发育迟缓的学龄前儿童和另外 40 名发育正常的学龄前儿童。使用 Rasch 测量模型进行结构效度分析,采用经典测试理论进行项目可靠性、内部和外部一致性可靠性以及聚合效度分析。
结果表明,PVQ-C 的 PVQ 项目符合意志的单一维度连续体(logit-6.63~3.05),其中 2 个项目代表诊断组的差异项目功能。个体拟合统计显示,83%的参与者的反应可以得到适当的估计和分层(分离指数=1.86)。使用改良的 3 点评分量表可得到可接受的项目可靠性(0.97)、内部一致性(0.412-1.0),86%的 PVQ 项目在重测信度>0.4,以及聚合效度(r=0.562-0.656)。
PVQ-C 被认为是评估儿童意志状态的可靠有效工具,可作为后续临床判断以及以客户为中心的干预计划和治疗效果的参考。