College of Dentistry, Restorative Department, Clinical Sciences Department, Ajman University, University Street, Al jerf 1, Ajman, United Arab Emirates.
Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.
BMC Oral Health. 2021 Sep 15;21(1):446. doi: 10.1186/s12903-021-01811-w.
The psychometric properties of self-administered instruments for measuring patient satisfaction with removable dentures should be tested before inviting patients to express their opinions. This study aimed to evaluate the validity and reliability of new instruments in the Arabic language that measure patient satisfaction with all types of removable dentures.
A three-step methodology was used to translate and test the instruments. In step one, the instruments were translated from tested German instruments to develop the pilot questionnaires. In step two, the face validity of the pilot questionnaires was tested through three rounds of interviews. There were 15, 13, and 15 participants per round, respectively. At the end of every round, the results of the interviews were discussed with an expert panel. The expert panel confirmed the form and the type of questionnaires' adjustments before a new round of interviews began. At the end of step two, the final form of the questionnaires was reached. In step three, 235 questionnaires were distributed to 133 participants to estimate the construct validity of the upper jaw and the lower jaw questionnaires. After one week, the participants were asked to complete the questionnaires again. A total of 102 questionnaires were returned and used to assess the instruments' reliability. Factor analysis was used to assess the construct validity. The intraclass correlation coefficient and Cronbach's alpha were used to estimate the reliability and suitability of the items in the indexes.
The result of step one was two pilot questionnaires. The pilot questionnaires were adjusted in step two. At the end of step two, the questionnaires proved to have good face validity. Factor analyses in step three revealed that only one factor could be retained. The one-factor model explained 60.95% and 63.06 of the total variance of the upper jaw and lower jaw questionnaires, respectively. The items in every questionnaire shared the same cluster and could be summed to form an upper jaw index and lower jaw index that reflected patient satisfaction with removable dentures. Cronbach's alpha values indicated excellent internal consistency and reliability for the upper jaw questionnaire (α = 0.91) and the lower jaw questionnaire (α = 0.92). Intraclass correlation coefficient values ranged from 0.72 to 0.95, which can be considered "moderate" to "excellent".
The Arabic version of questionnaires and indexes assessing patient satisfaction with upper and lower removable dentures are reliable and valid self-administered instruments.
在邀请患者发表意见之前，应测试自我管理工具测量患者对可摘义齿满意度的心理计量特性。本研究旨在评估新的阿拉伯语工具测量所有类型可摘义齿患者满意度的有效性和可靠性。
采用三步法翻译和测试工具。在第一步中，从经过测试的德国仪器翻译仪器以开发试点问卷。在第二步中，通过三轮访谈测试试点问卷的表面有效性。每轮分别有 15、13 和 15 名参与者。在每轮结束时，与专家小组讨论访谈结果。在开始新的一轮访谈之前，专家小组确认问卷的形式和类型调整。在第二步结束时，达到了问卷的最终形式。在第三步中，向 133 名参与者分发了 235 份问卷，以评估上颌和下颌问卷的结构效度。一周后，要求参与者再次完成问卷。共收到 102 份问卷，用于评估仪器的可靠性。因子分析用于评估结构效度。使用组内相关系数和克朗巴赫α来评估指标中项目的可靠性和适用性。
第一步的结果是两份试点问卷。在第二步中调整了试点问卷。在第二步结束时，问卷被证明具有良好的表面有效性。第三步的因子分析显示只能保留一个因素。单因素模型分别解释了上颌和下颌问卷总方差的 60.95%和 63.06%。每个问卷中的项目共享同一个集群，可以汇总形成一个反映患者对可摘义齿满意度的上颌指数和下颌指数。克朗巴赫α值表明上颌问卷（α=0.91）和下颌问卷（α=0.92）具有极好的内部一致性和可靠性。组内相关系数值范围为 0.72 至 0.95，可视为“中等”至“优秀”。
评估上下颌可摘义齿患者满意度的阿拉伯语问卷和指数是可靠和有效的自我管理工具。
