早年创伤问卷简表中文版的信度和效度

目的 评估早年创伤问卷简表(ETI-SF)中文版的信度和效度.方法 对265名被试进行ETI-SF中文版的评定,其中正常人42名、抑郁障碍94例,物质滥用者129例,130名在2～4周后重测.结果 ETI-SF四种童年创伤维度分量表的Cronbaeh's α系数在0.64～0.84之间,全量表Cronbach's α系数为0.83;重测相关系数在0.65～0.81之间(P＜0.01);正常对照组各型童年创伤评分显著低于物质滥用和抑郁障碍组,3组中物质滥用组性创伤得分最高,抑郁障碍组情感虐待分最高,ETI-SF能有效区分.结论 ETI-SF中文版信度和效度较好,具有临床与科研应用价值.     

Validation of the Caregiver Mealtime and Dysphagia Questionnaire (CMDQ)

The purpose of this study was to validate the Caregiver Mealtime and Dysphagia Questionnaire (CMDQ). The validation procedures included the following: (a) assessment of internal consistency reliability, (b) testing of approximations to normality, and (c) assessments of convergent and discriminant validity. Study participants were 85 noncompliant and 50 compliant caregivers. Factor analytical techniques revealed three interpretable scales: Quality of Life (QOL), Disagreement with the SLP (DSLP), and Avoidance (AV). All scales were internally consistent. The QOL and DSLP scales showed evidence of convergent and discriminant validity. The AV scale evidenced a floor effect, limiting its discriminating power.     

Where to B in dZ/dt

The B point on the impedance cardiograph waveform corresponds to the opening of the aortic valve and is an important parameter for calculating systolic time intervals, stroke volume, and cardiac output. Identifying the location of the B point is sometimes problematic because the characteristic upstroke that serves as a marker of this point is not always apparent. Here is presented a reliable method for B point identification, based on the consistent relationship between the R to B interval (RB) and the interval between the R-wave and the peak of the dZ/dt function (RZ). The polynomial function relating RB to RZ (RB = 1.233RZ - 0.0032RZ(2) - 31.59) accounts for 90%-95% of the variance in the B point location across ages and gender and across baseline and stress conditions. This relation affords a rapid approximation to B point measurement that, in noisy or degraded signals, is superior to visual B point identification and to a derivative-based estimate.     

Reliability & validity of the LIBRE Profile

Background

The Life Impact Burn Recovery Evaluation (LIBRE) Profile^© was developed using Item Response Theory methods to assess social participation after a burn injury. The LIBRE Profile measures six areas of social participation: Relationships with Family & Friends, Social Interactions, Social Activities, Work & Employment, Romantic Relationships, and Sexual Relationships. It can be administered through a computerized adaptive test or through fixed short forms. The goal of this study was to further examine the psychometric properties of the LIBRE Profile, including reliability and validity.

功能独立性测量的信度与效度研究

探讨功能独立性测量在残疾评测中的信度与效度。方法：检测２９例住院康复患者中风９例，脊髓损伤１３例，外伤性脑损伤７例。     

自制神经外科压疮危险因素评估量表与Braden量表信度与效度的比较研究

目的 更准确地评估神经外科患者发生压疮的危险性,降低压疮发生率.方法 采用两个评估量表(即自制神经外科压疮危险因素评估量表和Braden量表)评估500例神经外科患者的压疮危险因素,并进行信度和效度的比较.结果 自制神经外科压疮危险因素评估量表的Cronbach's α为0.941,Braden量表的Cronbach's α为0.743.因子分析结果显示,两个量表的结构效度与原设想的基本一致.预测效度显示,当自制神经外科压疮危险因素评估量表的诊断界值取16分时,灵敏度和特异度分别为89%和78%;当Braden量表取18分时,灵敏度和特异度分别为78%和58%.结论 两种量表均具有较好的内部一致性信度、结构效度和预测效度,但自制神经外科压疮危险因素评估量表优于Braden量表,是适合神经外科患者人群的压疮危险评估工具.     

Cognitive assessment of musculoskeletal pain with a newly validated Greek version of the Fear-Avoidance Beliefs Questionnaire (FABQ).

Fear of pain and avoidance are psychological factors of primary importance when assessing chronic musculoskeletal pain, which are often measured with the Fear-Avoidance Beliefs Questionnaire (FABQ). Both two- and three-subscale versions have been described. The aims of this study were: to assess the cognitive traits of musculoskeletal pain patients using a newly validated Greek version of the FABQ, and to further examine the construct validity and responsiveness of the measure. Factor analysis yielded three factors that accounted for 65% of the total variance. Physical activity explained 12.3% of the variance and was identical to the original version, unlike the work subscale which split into two: the FABQ work1 related to "work as cause" (15.2% of the variance) and the FABQ work2 related to "work as prognosis" (37.5% of the variance). Internal consistency was good (0.72-0.90). Test-retest reliability was satisfactory and close to the original version both for individual items and the subscales. Responsiveness of the 3-factor model was satisfactorily assessed as the ability to detect: (A) change in general - (paired t test, effect size); (B) clinically important change (paired t test, standardised effect size), and (C) real change in the concept being measured (ROC analysis). Construct validity of the FABQ was shown through the interaction with anxiety and depression, pain control and responsibility, psychological distress and pain intensity, and criterion-related validity through the association with another fear-avoidance measure (TSK). New aspects of responsiveness and construct validity were demonstrated for the FABQ, using a three-subscale validated Greek version.     

早产儿经口喂养能力评估量表的信效度及反应度研究

目的检验早产儿经口喂养能力评估量表的信度、效度和反应度。方法应用早产儿经口喂养能力评估量表测评109例早产儿的经口喂养表现,对测定结果进行信度、效度和反应度分析。结果早产儿经口喂养能力评估表各条目的决断值为3.111~14.159,各条目得分与总分相关系数为0.320~0.791。探索性因子分析抽取4个公因子,累计方差贡献率为56.782%,各条目因素负荷量为0.408~0.845。喂养良好组和喂养不良组该评估表得分差异有统计学意义(P0.01)。总量表的Cronbach’α系数为0.784,各公因子Cronbach’α系数在0.579~0.807。反应度显示开始经口喂养和全部经口喂养的标准化反映均数为1.04和1.02,反应度较好。结论早产儿经口喂养能力评估表信效度及反应度较好,可在临床上进一步使用。     

Validation of a Georgian language headache questionnaire in a population-based sample

In a pilot phase of a survey of the prevalence of primary headache disorders in the Republic of Georgia, we validated a Georgian language questionnaire for migraine (MIG), tension-type headache (TTH), MIG+TTH and trigeminal autonomic cephalalgias (TAC). A population-based sample of 186 people with headache completed the questionnaire and were blindly examined by one of two headache experts. The questionnaire diagnoses were: MIG 49, TTH 76, MIG+TTH 45 and TAC 16. The physicians’ diagnoses were: MIG 59, TTH 77, MIG+TTH 34, TAC 2 and “symptomatic headache” in 14 subjects. Sensitivity and specificity for MIG were 0.75 and 0.96, for TTH 0.79 and 0.86, and for MIG+TTH 0.61 and 0.84 respectively. Of 16 TAC diagnoses, the physicians confirmed cluster headache in two patients only. The questionnaire can be utilised to investigate the prevalence of MIG and of TTH. It offers preliminary screening only for TAC, which should be confirmed during a face to face examination. This is a “Springer Open Choice” article. Unrestricted non-commercial use, distribution, and reproduction in any medium is permitted, provided the original author and source are credited. An erratum to this article can be found at     

Reliability and validity issues related to interactive tailored patient assessments: a case study

Recently there has been a proliferation of interactive tailored patient assessment (ITPA) tools. However, evidence of the reliability and validity of these instruments is often missing, which makes their value in research studies questionable. Because several of the common methods to evaluate instrument reliability and validity are not applicable to interactive tailored patient assessments, informatics researchers may benefit from some guidance on which methods of reliability and validity assessment they can appropriately use. This paper describes the main differences between interactive tailored patient assessments and assessment instruments based on psychometric, or classical test, theory; it summarizes the measurement techniques normally used to ascertain the validity and reliability of assessment instruments based on psychometric theory; it discusses which methods are appropriate for interactive tailored patient assessments and which are not; and finally, it illustrates the application of some of the feasible techniques with a case study that describes how the reliability and validity of the tailored symptom assessment instrument called Choice were evaluated.