Ip Wan-Yim, Chung Tony K H, Tang Catherine Sk
Nethersole School of Nursing, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
J Clin Nurs. 2008 Feb;17(3):333-40. doi: 10.1111/j.1365-2702.2006.01919.x. Epub 2007 Sep 11.
To examine the validity and reliability of the short form of the Childbirth Self-Efficacy Inventory in a clinical Chinese pregnant population.
Childbirth self-efficacy has become an important psychological construct for both childbirth educators and researchers because pregnant women's perception may influence the meaning and consequences of childbirth. Assessment done by the original Childbirth Self-Efficacy Inventory limits the scientific rigor for generating additional research into the construct, as its items were repetitive and its structure is lengthy.
This prospective study investigated 293 Chinese pregnant women in their third trimester of pregnancy. The women completed the short form of the Childbirth Self-Efficacy Inventory, the Chinese Self-efficacy Scale and the socio-demographic questionnaire in an interview room of the study hospital. The re-testing of the scale on the participants was carried out two weeks later in the same clinic.
Factor analysis and item-subscale correlations supported the conceptual dimensions of the short form of the Chinese Childbirth Self-Efficacy Inventory. The Cronbach's alpha coefficients for both subscales were over 0.9. The convergent validity with the Chinese Self-Efficacy Scale was reflected by a moderate correlation for the two subscales. The efficacy expectancy subscale differentiated primigravid from multigravid women (t = 2.83, P < 0.01, CI = -2.33 to 2.34).
The reliability and validity information presented in this paper supports the use of the short form of the Childbirth Self-Efficacy Inventory as a research instrument in measuring the childbirth self-efficacy among the Chinese population. Further validation of the measure is warranted.
The reliable short form of the Childbirth Self-Efficacy Inventory could be used in routine clinical practice in maternity care services to provide a point of reference for future research and development in both childbirth education and clinical practice.
检验中文版分娩自我效能量表简版在临床中国孕妇群体中的有效性和可靠性。
分娩自我效能已成为分娩教育者和研究人员的一个重要心理结构，因为孕妇的认知可能会影响分娩的意义和结果。原始的分娩自我效能量表所进行的评估限制了对该结构进行更多研究的科学严谨性，因为其条目重复且结构冗长。
这项前瞻性研究调查了293名处于妊娠晚期的中国孕妇。这些女性在研究医院的访谈室中完成了分娩自我效能量表简版、中文版自我效能量表和社会人口学问卷。两周后在同一诊所对参与者进行了该量表的重测。
因子分析和条目-子量表相关性支持了中文版分娩自我效能量表简版的概念维度。两个子量表的克朗巴哈α系数均超过0.9。与中文版自我效能量表的收敛效度通过两个子量表的中度相关性得以体现。效能期望子量表区分了初产妇和经产妇（t = 2.83，P < 0.01，CI = -2.33至2.34）。
本文所呈现的可靠性和有效性信息支持将分娩自我效能量表简版用作测量中国人群分娩自我效能的研究工具。该测量方法的进一步验证是有必要的。
可靠的分娩自我效能量表简版可用于产科护理服务的常规临床实践，为分娩教育和临床实践的未来研究与发展提供一个参考点。
