Dundee Ready Education Environment Measure: psychometric testing with Chinese nursing students

Title. Dundee Ready Education Environment Measure: psychometric testing with Chinese nursing students. Aim. This paper is a report of the psychometric testing of the Dundee Ready Education Environment Measure with Chinese nursing students. Background. Although the Dundee Ready Education Environment Measure has been widely used to measure educational environments in the healthcare professions, no psychometric evaluation of the measure with Chinese nursing students has been reported. Method. Data from 214 nursing students were collected during a 2‐month period between December, 2004 and January, 2005. Exploratory factor analysis, internal consistency reliability and Cronbach’s alpha were examined. Results. Five factors were found by principal components analysis with Oblimin with Kaiser Normalization rotation. The original factor names were maintained, but items in each factor changed. These five factors all achieved eigenvalues >1, and in total accounted for 52·186% of the variance. Cronbach’s alpha ranged from 0·623 to 0·9 across factors, with an overall alpha of 0·949. Conclusion. The Chinese version of the Dundee Ready Education Environment Measure could be a valuable measurement for nursing educators in professional development programmes and nursing curriculum design. Further studies need in different Chinese nursing schools and larger sample sizes to be conducted to validate its stability and factor structure.     

Markov level shifts and the unit‐root hypothesis

This paper examines the properties of tests for the presence of an autoregressive unit root in time series that are subject to multiple level shifts. The latter are assumed to be governed by a time‐homogeneous finite Markov chain, thus allowing for an arbitrary number of stochastic breaks. It is demonstrated that standard tests of the unit‐root hypothesis against stationary or single‐break alternatives experience serious difficulties in the presence of Markov level shifts.     

Childbirth Self‐Efficacy Inventory: psychometric testing of the Spanish version

Title. Childbirth Self‐Efficacy Inventory: psychometric testing of the Spanish version. Aim. This paper is a report of a study of the psychometric properties of the Spanish version of the Childbirth Self‐efficacy Inventory. Background. Enhancing the confidence of women in their ability to cope with pain in labour is a key element of effective childbirth education programs. The Childbirth Self‐efficacy Inventory is a suitable instrument for testing hypotheses about the development of self‐efficacy for childbirth. Analysing its psychometric properties in the light of Bandura’s Self‐Efficacy Theory is relevant for the validation of the instrument. Methods. Translation and back‐translation of the questionnaire took place in 2002 using a pilot sample of 12 women. The study was conducted using a sample of 146 childbearing women recruited from different national healthcare centres in Spain during the last 6 months of 2003. The psychometric study was carried out using the Statistical Package for Social Sciences. Results. Principal components analysis supported the ability of the Self‐Efficacy Inventory to distinguish between outcome and self‐efficacy expectancies. Internal Consistency Reliability of the Inventory was found adequate. Previous knowledge was identified as the most important factor influencing the confidence of a woman to coping with labour. Conclusion. Results are consistent with previous findings, and contribute to give support to the reliability and validity of the Inventory. The findings provide an additional and useful insight into practical ways of enhancing a woman’s confidence to coping with childbirth: self‐efficacy can be strengthened through persuasion by healthcare professionals, childbirth educators, and family and friends who offer support to the pregnant woman.     

基于假设检验理论的数据融合方法

目的 提出基于假设检验理论的数据融合方法。方法 通过例子进行仿真，并对结果进行分析。结果 分析表明，理论与仿真结果相符合。结果 仿真结果证明了数据融合方法的优越性。     

积极探索，大胆创新，不断提高药品检测车的运行效能

黄山市食品药品监督管理局以药品检测车为平台,积极探索,大胆创新,不断挖掘检测车的潜能,充分发挥药品检测车在药品监管中的作用。     

直立性T波改变与血管迷走性晕厥的相关研究

目的探讨无晕厥病史患者出现的直立性T波改变的发生机理及其与血管迷走性晕厥的相关性;方法利用活动平板运动试验初筛出直立性T波改变预检患者,经基础倾斜试验进一步确证,再行硝酸甘油倾斜试验。第2天,阳性患者经随机分组,双盲对照服用安慰剂(=22)或30mg普荼各尔(=21)60min后重复基础倾斜试验、硝酸甘油倾斜试验。结果100例直立性T波改变患者在基础倾斜试验中无1例阳性反应,在随后的NTTT中有43例出现阳性结果。第2天,安慰剂组直立性T波改变及NTTT阳性有比率明显高于普荼各尔组(依次为86.4%∶23.8%,P<0.01,72.7%∶28.6%,P<0.01)。结论直立性T波改变是人体由卧位到立位引起神经-体液变化所致的心室肌复极异常,它是血管迷走性晕厥形成过程中某一阶段出现的一种伴随现象,与血管迷走性晕厥有一定的相关性,心得安等β-受体阻滞剂作为首选药物来治疗直立性T波改变和伴随有直立性T波改变的血管迷走性晕厥患者,收到肯定的临床疗效。