Psychometric properties of the Norwegian Person‐centred Climate Questionnaire from a nursing home context

Background: The physical and psychosocial environments in nursing homes influence the residents’ everyday life as well as their well‐being and thriving. The staff’s perceptions of and relationships with the residents are crucially important to quality care. Quality care is described often as person‐centred. Few measurement tools exist that focus on person‐centred care in nursing homes. Objective: The aim of this study was to evaluate the psychometric properties of the Norwegian version of the Person‐centred Climate Questionnaire–Staff version (PCQ‐S). Design: This study had a cross‐sectional survey design. Participants and Settings: Two hundred and nine healthcare and support staff in five nursing homes in the eastern part of Norway. Methods: The Swedish PCQ‐S was translated into Norwegian with forward and backward translation. The relevance of the items included in the questionnaire was assessed by an expert panel of 10 nursing home care staff, because the questionnaire has not been used in this context previously. A psychometric evaluation using statistical estimates of validity and reliability was performed. The discriminatory capacity of the questionnaire was also tested. Results: The content validity index was satisfactory (0.78). The PCQ‐S showed high internal consistency reliability in that Cronbach’s α was satisfactory for the total scale (0.92) and the three subscales (0.81, 0.89 and 0.87). The test–retest reliability was also satisfactory as evident from a Spearman’s correlation coefficient of 0.76 (p < 0.01) between the total PCQ scores at test and retest. The Norwegian version retained the original factor structure of the Swedish version. Conclusion: As the psychometric evaluation showed satisfactory validity and reliability scores, this study supports the Norwegian version of the PCQ‐S when applied to a sample of nursing home staff.     

骨科大手术患者下肢深静脉血栓健康信念问卷的编制及信效度检测

目的编制适用于评价骨科大手术患者下肢深静脉血栓的健康信念行为的问卷,并测定其信效度。方法采用理论与经验相结合的方法,以健康信念模式作为编制量表的基本理论框架,初步编制了骨科大手术患者下肢深静脉血栓健康信念问卷,并进行预实验、资料收集、信效度分析,逐步完成问卷编制。结果问卷条目具有较好的鉴别力,同质性信度系数仪为0．88,内容效度（CVI）为0．95,因子分析表明,问卷有较好的结构效度,各维度累计解释变异量均超过50％。结论骨科大手术患者下肢深静脉血栓健康信念问卷具有较好的信度和效度,能解释和预测骨科大手术患者采取预防下肢深静脉血栓措施的可能性。     

Psychometric testing of the Chinese Mandarin version of the MacNew Heart Disease Health‐related Quality of Life questionnaire for patients with myocardial infarction in mainland China

Tools to measure the quality of life of Chinese myocardial infarction (MI) patients in mainland China are small in numbers. For this study, 210 Chinese patients with MI were recruited to examine the psychometric properties of the Chinese Mandarin version of the MacNew Heart Disease questionnaire. Thirty‐five participants managed to complete the retest after 2 weeks. The MacNew Heart Disease questionnaire had acceptable internal consistency, test–retest reliability and concurrent validity. The principal components analysis identified three factors which accounted for 56.6% of the variance. The MacNew Heart Disease questionnaire demonstrated good reliability and validity to be used as a health status measurement tool, and is ready for clinical use in the assessment of the quality of life of Chinese MI patients in mainland China.     

中文版糖尿病自护行为量表的信度和效度研究

目的 考察中文版糖尿病自护行为量表(SDSCA)的信度和效度,为我国2型糖尿病患者,自护行为评估提供有效、简便的工具.方法 翻译国外的糖尿病自护行为量表(SDSCA),形成中文版SDSCA,采用随机抽样方法,从内分泌门诊中选取20例2型糖尿病患者,进行中文版糖尿病自护行为量表的重测信度、量表内部一致性和结构效度研究.结果 中文版SDSCA各维度重测信度在0.763～1.000;量表各维度条目间相关系数,具体饮食最低(0.104),其余各维度条目间呈中度至高度相关0.555～0.933;主成分分析共抽取4个因子,解释变异量的67.483%.结论 中文版SDSCA的信效度理想,适合于2型糖尿病患者自护行为评价.

Abstract：

Objective To test the reliability and validity of the Chinese version Diabetea Self-Care Behavior(SDSCA)Questionnaire,and thus to provide an effective and convenient way of self-care behavior assessment for patients with type 2 diabetes.Methods The questionnaire based on the translation of SDSCA wag used in 20 cases of type 2 diabetes patients,in order to analyze the retest rehability,internal consistency and scale construct validity. Results The retest reliability of each dimension wag between 0.763 to 1.000;the scale correlation coeflicients between items in specific diet dimension Wag lowest(0.104),and the others were moderate to high degree of correlation between 0.555～0.933;exploratory factor analysis extracted 4 components,and the percentage of variance explained was 67.483% .Conclusions Chinese version SDSCA has a good reliability and validity,and is good for evaluating the self-care activities in type 2 diabetes patients.     

Reliability and validity of the Turkish version of ABILHAND-Kids’ questionnaire in a group of patients with neuromuscular disorders

This study was performed to examine the reliability and validity of the Turkish version of ABILHAND-Kids questionnaire which assesses manual functions of children with neuromuscular diseases (NMDs). A cross sectional survey study design and Rasch analysis were used to assess the reliability and validity of the Turkish version of scale. Ninety-three children with different neuromuscular disorders and their parents were included in the study. The scale was applied to the parents with face-to-face interview twice; on their first visit and after an interval of 15 days. The test–retest reliability was assessed with intraclass correlation coefficient (ICC), and internal consistency of the multi-item subscales by calculating Cronbach alpha values. Brooke Upper Extremity Functional Classification (BUEFC) and Wee-Functional Independency Measurement (Wee-FIM) were correlated to determine the construct validity. The ICC value for the test/retest reliability was 0.94. The internal consistency was 0.81. Floor (1.1%) and ceiling (11.8%) effects were not significant. There were moderate correlations between the Turkish version of ABILHAND-Kids and Wee-FIM (0.67) and BUEFC (?0.37). Rasch analysis indicated good item ?t, unidimensionality, and model ?t. The Turkish version of ABILHAND-Kids questionnaire was found to be a reliable and valid scale for the assessment of the manual ability of children with NMDs.     

Adaptation of the Shoulder Disability Questionnaire to the Turkish population, its reliability and validity

The objective of this study was to adapt the Shoulder Disability Questionnaire (SDQ) for use in Turkey, and to test its reliability and validity. Eighty patients with shoulder pain were included in the study. Pain severity at rest, with motion and during sleeping was assessed by using a numeric pain scale. The shoulder's active and passive range of motion were measured by a goniometer and recorded. The Constant-Murley scale was used for functional assessment. The Turkish version of the SDQ, which was adapted by using guidelines, was completed by the patients. To assess reproducibility, the SDQ was completed by 32 patients who did not improve 1 week later. The reliability of the adapted version was good, with high internal consistency (Cronbach's alpha=0.76) and test-retest reliability (Pearson's correlation coefficient=0.88). The Turkish version of the SDQ was found to have a moderate correlation with pain at rest, with motion and during sleeping. The Turkish version of the SDQ was found to be reliable and valid. The moderate correlation of the questionnaire with clinical parameters including pain shows its validity, but the questionnaire should be tested extensively for detecting changes within time, for use in the follow-up and clinical practice.     

Validation and test–retest reliability of the Risser patient satisfaction scale in Cyprus

charalambous a. (2010) Journal of Nursing Management   18 ,61–69
Validation and test–retest reliability of the Risser patient satisfaction scale in Cyprus
Aim  To describe the translation, adaptation and validation of the Risser Patient Satisfaction Scale (RPSS) questionnaire into Greek language and discuss possibilities of its use in cancer care settings.
Background  The translation and cultural adaptation of a widely accepted, psychometrically tested tool is regarded as an essential component of effective human resource management or quality monitoring and improvement in the healthcare arena.
Methods  The original version of the English self-administered questionnaire consisting of 25 items was translated and validated using the internationally accepted and recommended methodology. The validation process included: assessment of the item internal consistency, using the alpha coefficient of Cronbach. Reproducibility (test–retest reliability) was tested by the Kappa correlation coefficient.
Results  The psychometric properties of the Greek version of the PSS were good. The internal consistency of the instrument was very good, Cronbach's alpha was found to be 0.89 ( P  < 0.001) and Kappa coefficient for reproducibility was found to be 0.84 (95% CI: 0.83–0.85, P  < 0.0001).
Conclusions  The translated and adapted Greek version is comparable with the original instrument in terms of validity and reliability.
Implications for nursing management  Managers should use validated patient satisfaction scales such as the RPSS in order to evaluate the quality of care in cancer care departments. The findings should be also compared using a bench mark on national and international levels.     

Translating and testing the Liver Disease Symptom Index 2.0 for administration to people with liver cirrhosis in Egypt

The Liver Disease Symptom Index (LDSI) 2.0 is a simple, short and specific liver disease questionnaire in English, but an Arabic version does not exist, therefore we translated the LDSI‐2.0 into Arabic and tested its psychometric properties in a pilot cross‐sectional study. A convenience sample of 38 patients with liver cirrhosis from one hospital in Cairo, Egypt, were interviewed for approximately 45 min. Patients completed a background data sheet, the translated LDSI‐2.0 and the Short Form (SF)‐36v₂. Construct convergent validity was examined by correlating LDSI‐2.0 items with the SF‐36v₂ eight domains. Reliability was estimated using measures of internal consistency, test–retest reliability and internal consistency reliability. Median completion time was 10 min. The correlation between the translated LDSI‐2.0 items and the SF‐36 domains confirmed that there was moderate to high overlapping between the two measures, suggesting convergent validity of the LDSI‐2.0. The LDSI‐2.0 showed good to very good retest reliability (kappa value 0.62–0.94). Chronbach's alpha coefficient for the multi‐item scales ranged from 0.73 to 0.96. The Arabic LDSI‐2.0 therefore has satisfactory validity, retest reliability and internal consistency.     

Properties of a Norwegian version of the Ward Organisational Features Scales

To assess the association between nurses' practice environment and established measures of discharged patients' experiences during hospitalisation it is necessary to have a validated instrument to collect data on nurses' work environment in hospital wards. The purpose of this study was to assess the reliability and validity of a Norwegian version of the Ward Organisational Features Scales (WOFS), an instrument developed in the UK to describe environmental factors influential on the effectiveness of nursing services. After linguistic adaptation of the questionnaire, the reliability and validity were assessed in a sample of 99 nurses, of whom 46 (45%) responded. Most of the 12 tested scales showed acceptable internal consistency (10 had Cronbach's alpha > 0.70) and test-retest reliability (eight had intraclass correlation coefficient >0.70). The WOFS scales' correlations with external variables were in line with hypothesised correlations, thus supporting their validity. Scales describing nurses' influence on ward organisation and management did not perform well, probably due to differences in intraward organisation in the two countries. In spite of a limited sample size this study suggests that the majority of the scales of the WOFS showed satisfactory psychometric properties. They can be useful for assessing and describing aspects of nurses' work environment in Norwegian hospitals.     

Reliability and Validity of The Norwegian Version of The Nowotny Hope Scale

The purpose of the present study was to assess the reliability and validity of the Norwegian version of the Nowotny Hope Scale as applied to cancer patients. The questionnaire was first translated into Norwegian following internationally accepted guidelines. The scale was tested on a sample consisting of 131 newly diagnosed cancer patients. The findings supported the internal consistency of the instrument as a whole (alpha = 0.89) and of the six subscales: confidence (alpha = 0.85), relates to others (alpha = 0.75), future is possible (alpha = 0.80), spiritual beliefs (alpha = 0.94), active involvement (alpha = 0.53) and comes from within (alpha = 0.80). Stability over time was provided by a satisfactory 3–4-week test—retest correlation (r = 0.81). The validity was confirmed by the judgement of an expert and by a principal components analysis with orthogonal rotation. The result of the factor analysis was somewhat different from the original findings in an American sample. The results obtained in this study are promising and indicate that the Nowotny Hope Scale can be used to measure hope in newly diagnosed Norwegian cancer patients.     

Long‐term quality of life after pregnancy‐related deep vein thrombosis and the influence of socioeconomic factors and comorbidity

Summary. Background: Little is known about the long‐term impact of pregnancy‐related deep vein thrombosis (DVT) of the lower limbs. Objectives: To evaluate the long‐term consequences of pregnancy‐related DVT by assessment of self‐reported, disease‐specific quality of life (QOL) and symptom severity using the Venous Insufficiency Epidemiological and Economic Study (VEINES)‐QOL/Sym questionnaire, and to investigate the influence of socioeconomic factors and comorbidity. Patients/Methods: In this cross‐sectional case–control study, 313 women with validated pregnancy‐related DVT and 353 controls completed a comprehensive questionnaire, including the disease‐specific VEINES‐QOL/Sym questionnaire. After exclusion of DVT outside the lower limbs and missing scores, the study population comprised 208 patients and 347 controls. A VEINES‐QOL/Sym score < the 25th percentile was defined as a clinically relevant reduced outcome compared with scores ≥ the 50th percentile. Predictors for low scores were identified in multivariate logistic regression models. Results: Cases reported lower mean VEINES‐QOL/Sym scores than controls, 45.6/45.4 vs. 52.8/52.7, respectively (P < 0.001), and QOL among cases was still reduced compared with controls when adjusted for possible confounders. Low education was an independent predictor for both low VEINES‐QOL and VEINES‐Sym scores, and in addition being married/cohabitating predicted low VEINES‐Sym scores. Conclusions: Long‐term QOL and symptom scores as assessed with the VEINES‐QOL/Sym questionnaire were lower in women with previous pregnancy‐related DVT than in controls, and also when adjusted for possible confounders. By logistic regression, low education was an independent predictor for low scores. This supports the use of the VEINES‐QOL/Sym questionnaire in studies on pregnancy‐related DVT.     

Quality of life after pulmonary embolism: validation of the PEmb‐QoL Questionnaire

Summary. Background: Even though quality of life (QoL) has become a key component of medical care, there is no instrument available that specifically measures QoL after pulmonary embolism (PE). Recently, the Pulmonary Embolism Quality of Life (PEmb‐QoL) Questionnaire has been developed to address this gap. Objective: To evaluate the validity of the PEmb‐QoL questionnaire. Methods: We distributed the PEmb‐QoL questionnaire and the Short Form‐36 (SF‐36) questionnaire twice among consecutive subjects with a history of objectively confirmed acute PE. Internal consistency reliability, test‐retest reliability, convergent validity and criterion validity, and correlations between the PEmb‐QoL and clinical patient characteristics were assessed using standard‐scale construction techniques. Results: Ninety participants completed the questionnaires twice. Internal consistency was adequate (Cronbach’s α 0.62–0.94), as well as test‐retest reliability (intra‐class correlation coefficients: 0.78–0.94). Furthermore, correlation between the PEmb‐QoL questionnaire and the SF‐36 questionnaire supported convergent validity. Age, obesity, cardiopulmonary comorbidity, centrally located PE and a family history of venous thromboembolism were shown to be independent determinants of disease‐specific QoL. Conclusion: The PEmb‐QoL questionnaire is a reliable instrument to specifically assess QoL following PE, which is helpful in the identification of patients with decreased QoL following acute PE.     

Reliability, validity and responsiveness of the fear-avoidance beliefs questionnaire: methodological aspects of the Norwegian version.

OBJECTIVE: To evaluate reliability, validity and responsiveness of the Fear-Avoidance Beliefs Questionnaire (FABQ) for use in Norwegian patients with low back pain. DESIGN: A prospective cohort study with 2 groups. PATIENTS: The questionnaire was tested in 123 patients with acute low back pain and 50 patients with chronic low back pain. METHODS: A translation and cross-cultural adaptation was performed. Test-retest reliability was assessed in 28 patients with chronic low back pain. Responsiveness was assessed in acute low back pain. RESULTS: Two factors for the FABQ were confirmed; fear-avoidance beliefs about work (FABQ-Work) and physical activity (FABQ-PA), accounting for 60% and 54% of the total variance in acute and chronic low back pain, respectively. For FABQ-Work and FABQ-PA internal consistency was 0.90 and 0.79, intra-class correlation coefficients 0.82 and 0.66, minimal detectable changes 12 and 9 points, and coefficients of variation were 16% and 23%. The FABQ correlated weakly to moderately with pain, disability, distress, and clinical variables. Standardized response means were low for FABQ-Work (0.32) and moderate (0.56) for FABQ-PA. Both FABQ subscales showed initially floor and/or ceiling effects. CONCLUSION: The Norwegian FABQ version had acceptable factor structure, internal consistency, test-retest reliability and construct validity. The responsiveness of the FABQ-Work was low, and for the FABQ-PA moderate, in the acute sample.     

The influence of venous thromboembolism on quality of life and severity of chronic venous disease.

BACKGROUND: It is not known whether burden-of-illness differs in chronic venous disease patients with prior venous thromboembolism compared with patients with other forms of chronic venous disease. OBJECTIVE: To compare severity of disease and quality of life in chronic venous disease patients with and without prior venous thromboembolism. PATIENTS and METHODS: The VEINES Study population is an international cohort of 1531 outpatients with chronic venous disease in Belgium, France, Italy and Canada. Clinical severity of chronic venous disease graded using the seven-category 'CEAP' scale, and quality of life using standardized generic (SF-36) and venous disease-specific (VEINES-QOL/Sym) questionnaires were compared in patients with and without venous thromboembolism. Multivariable analyses with adjustment for known confounders were used to examine associations between venous thromboembolism and quality of life. RESULTS: One hundred and fifty-one (10%) patients had prior venous thromboembolism. These patients had more severe chronic venous disease than those without venous thromboembolism (P <0.0001), including a higher frequency of healed or active ulcers (29% vs. 7%, respectively). Multivariable analyses controlling for age, sex, country, education, body mass index, years of chronic venous disease and comorbid conditions demonstrated that prior venous thromboembolism was an independent predictor of poorer generic quality of life (SF-36 Mental Component Summary score, P=0.047; SF-36 Physical Component Summary score, P=0.012) and venous disease-specific quality of life (VEINES-QOL, P = 0.0002; VEINES-Sym, P=0.009). CONCLUSIONS: Disease severity is worse and quality of life poorer in chronic venous disease patients with prior venous thromboembolism compared with patients with other forms of chronic venous disease. Our findings support the need for further research of interventions to prevent and treat the long-term complications of venous thromboembolism.     

中文版《糖尿病自我管理行为量表》的信效度验证

目的检验中文版《糖尿病自我管理行为量表》的信效度。方法 2009年2月至2010年2月,采用方便抽样的方式选择浙江省杭州市、温州市和金华市的门诊和住院治疗及参加糖尿病学习班的糖尿病患者共计419例,以中文版《糖尿病自我管理行为量表》进行问卷调查,其中30例患者(来自金华地区)在4个月后进行了重测,以建立量表的重测信度。结果《糖尿病自我管理行为量表》各题项的重测信度在0.425~0.774之间,内部一致性系数在0.829~0.913之间。验证性因素分析结果显示:原量表结构具有最佳的拟合指数(χ2/df=2.122,残差均方根=0.022,近似误差均方根=0.052,相对拟合指数和拟合优度指数均超过0.989);典型相关分析结果显示:自我管理行为与血糖控制水平间的相关系数为0.806(Wilks’λ=0.349,P0.01)。逐步多元回归分析结果显示:除吸烟状态分量表外,其余自我管理行为分量表有效解释2型糖尿病患者空腹血糖值63.5%的变异(R2=0.653)和餐后2h血糖值55.1%的变异(R2=0.551)。结论中文版《糖尿病自我管理行为量表》具有较好的信度和效度,可以成为糖尿病自我管理行为相关研究的有效工具。     

中文版脑卒中后失语症生活质量量表的信度和效度研究

目的通过编译及心理测量学考评脑卒中失语症生活质量量表,建立脑卒中失语症适合的生活质量专用表。方法应用中文版脑卒中失语症生活质量量表(SAQOL-39g)以问卷形式对2017年1月至2019年1月我院收治的88例脑卒中失语患者及其88名陪护(代评者)进行调查,全面考察该量表信度、效度、可行性及及自评代评量表间一致性。结果量表回收率为100%,其中自评量表和代评量表平均完成时间为(21.61±4.38)min和(13.26±5.70)min。中文版SAQOL-39g Cronbach’s alpha系数内自评量表和代评量表的总体和各维度内在信度范围分别为0.881~0.946和0.884~0.941;重测信度相关系数范围分别为0.803~0.973和0.862~0.986。使用量表结构效度检验因子分析显示提取3个公因子,贡献率为59.7%。中文版SAQOL-39g中自评量表和代评量表之间具有较高一致性(P>0.05)。结论应用中文版SAQOL-39g具有较高的信度、效度及可行性,自评量表和代评量表间具有较好的一致性,可有效评估脑卒中失语症患者的生活质量。     

Translation,cross-cultural adaptation,and psychometric properties of the Urdu version of Rand Short Form 36-item survey (SF-36) among patients with lumbar radiculopathy

Background and aimsAlthough Rand Short Form 36-item (SF-36) questionnaire is a frequently used tool for evaluating a patient's quality of life in both clinical and research settings, but its translation into Urdu language and its psychometric properties has not been tested before, in accordance to the pre-established guidelines. This study aimed to translate and assess the psychometric properties of Urdu version of SF-36 (SF-36-U) in lumbar radiculopathy patients.MethodsIn this cross-sectional study, one hundred and eight patients of lumbar radiculopathy filled SF-36-U questionnaire, Urdu version of Oswestry Disability Index (ODI-U) and visual analogue scales for pain (VAS pain) at baseline and after 7 days. Two types of reliability i.e. internal consistency and test-retest reliability while three types of validity i.e. face, content, and construct validity were evaluated. Psychometric properties were assessed contrary to the a priori hypothesis and alpha level was kept at < 0.05.ResultsSF-36-U presented good to excellent test-retest reliability for all eight domains (ICC_2,1 = 0.75–0.92). Internal consistency was also acceptable for all domains (Cronbach's alpha = 0.73–0.90). Face and content validity were found to be good. Pearson correlation revealed moderate to strong correlations of SF-36-U domains with ODI-U (r = 0.43–0.54), VAS pain (r = 0.32–0.49) and each of its own question (r = 0.37–0.88) which shows good construct validity.ConclusionSF-36-U revealed acceptable psychometric properties and is considered as a reliable and valid questionnaire for assessing the health-related quality of life in Urdu-speaking patients having lumbar radiculopathy.     

Psychometric properties of the Swedish version of the selection,optimization, compensation questionnaire

Scand J Caring Sci; 2013; 27; 460–467 Psychometric properties of the Swedish version of the selection, optimization, compensation questionnaire Background: The model of selection, optimization and compensation has been proposed as a model of adaptive management strategies throughout the lifespan. Aim: The aim of this study was to test the psychometric properties of a translated Swedish version of the 12‐item selection, optimization, and compensation (SOC) questionnaire. Method: The 12‐item SOC questionnaire is composed of four subscales: elective selection (ES), loss‐based selection, optimization and compensation. A convenience sample of 122 Swedish‐speaking people, aged 19–85, participated in a study of the validity and reliability of the SOC questionnaire. Cronbach’s alpha coefficient, corrected item–total correlation and Cronbach’s alpha if item deleted were used for reliability testing. Two other scales, the ways of coping questionnaire and Rosenberg’s self‐esteem scale, were used to test convergent validity, and the geriatric depression scale was used to test discriminant validity. Stability over time was evaluated using a test–retest model with a 2‐week interval. Results: The 12‐item SOC questionnaire showed a Cronbach’s alpha value of 0.50, and the subscales ranged from α = 0.16 to α = 0.64. Two items in the ES subscale had negative values on the corrected item–total correlation and showed substantial improvement (>0.05) in Cronbach’s alpha when item deleted. When these two items that influenced internal consistency were deleted, Cronbach’s alpha rose to 0.68. Conclusion: The Swedish version of the 12‐item SOC questionnaire showed deficiencies in a test of internal consistency because of two items in the ES subscale, and these two items were deleted. A consequence of the reduction is a weakening of the ES subscale and thereby to some extent the SOC questionnaire in total. Further testing is advisable. However, the 10‐item SOC questionnaire was acceptable in a test of validity and reliability.     

Hand injuries and cold sensitivity: Reliability and validity of cold sensitivity questionnaires

Purpose. Sensitivity to cold is a common consequence of hand injuries and other conditions, and this phenomenon has a profound effect on health-related quality of life and upper-extremity disability. The aim of the present study was to examine the reliability and validity of the Swedish version of the Cold Sensitivity Severity (CSS) scale and Cold Intolerance Symptom Severity (CISS) questionnaire and the reliability of the Potential Work Exposure Scale in a group of patients with traumatic hand-injury or vibration-induced problems.

Method. We translated the self-administered questionnaires into Swedish and performed tests of reliability and validity. The questionnaire was sent to 159 patients with hand injuries.

Results. Validity and internal-consistency results are based on a sample of 122. Test – retest results are based on a sample of 100. Good construct validity was demonstrated via correlation statistics. There were high correlations for both the CSS scale and CISS questionnaire scores with single questions concerning cold sensitivity, with the Disability of the Arm, Shoulder and Hand scale, and with the bodily-pain subscale of the SF-36 questionnaire. Reliability (both internal consistency and test – retest) was excellent.

Conclusions. We conclude that the Swedish versions of the CSS scale and CISS questionnaire are reliable, and that this study provides evidence of the validity of the scales. The Potential Work Exposure Scale is reliable method of assessing exposure in the workplace.     

Validity and reliability of the Norwegian version of the Ferrans and Powers Quality of Life Index

The purpose of this study was to examine the validity and reliability of the Norwegian version of the Ferrans and Powers Quality of Life Index in a sample of 131 men and women with newly diagnosed cancer. The Quality of Life Index was translated into Norwegian using a standardized international approach, including back-translation. The findings showed high internal consistency reliability for the global score (alpha = 0.93 (test)) as well as for the following domains: health and functioning (alpha = 0.88), socio-economic (alpha = 0.82), psychological/spiritual (alpha = 0.82) and family (alpha = 0.79). The test-retest reliability after 3-4 weeks was 0.78 for the global score. A factor analysis partially confirmed the different subscales. In conclusion, the Quality of Life Index was found to be reliable and had sufficient validity to be used for measuring quality of life in Norwegian cancer patients.