Reliability and validity of the Modified Dental Anxiety Scale in Turkish patients

We aimed to determine dental anxiety among Turkish patients and assess the sensitivity, specificity, positive/negative predictive values and reliability of the Modified Dental Anxiety Scale (MDAS) and Corah's Dental Anxiety Scale (DAS). Patients referred to our clinic for dental treatment who had a history of dental anxiety were included in the study. 294 randomly selected patients (mean age 38.8 years) completed a questionnaire combining Corah's DAS and MDAS. They were retested 15 days later. The prevalence of dental anxiety was found to be 9.9% (29/294) for Corah's DAS at the cut-off point > or = 15 and 8.8% (26/294) for the MDAS at the cut-off point > or = 19. Both dental anxiety scales gave acceptable sensitivity, specificity, positive and negative predictive values at these cut-off points.     

Reliability and validity of the breast cancer screening belief scale among Turkish women

Breast cancer is the second leading cause of cancer deaths in Turkish women, and the use of breast self-examination (BSE) and mammography remains low in Turkey. Therefore, we need to identify the beliefs, influencing BSE and mammography, and a valid and reliable tool to measure constructs. The Champion's health belief model scale (CHBMS) is a valid and reliable tool to measure beliefs about breast cancer, BSE, and mammography in an English culture. The purpose of this study was to assess the psychometric characteristics of a Turkish version of the CHBMS related to breast cancer, BSE, and mammography. A convenience sample of 656 women was recruited from 3 health centers and 2 maternal and child health centers in Istanbul. The CHBMS was translated to Turkish, validated by professional judges, back translated, and tested. Factor analysis yielded 7 factors for BSE: confidence, seriousness, barriers-BSE, health motivation 1 and 2, susceptibility, and benefits-BSE. For mammography scale, 6 factors were identified: seriousness, benefits-mammography, barriers-mammography, health motivation 1 and 2, and susceptibility. All items on each factor were from the same construct. Cronbach alpha reliability coefficients ranged from.75 to.87 for the subscales. The Turkish version of the CHBMS showed adequate reliability and validity for use in Turkish women. It could easily be used to evaluate the health beliefs about breast cancer, BSE, and mammography. Further refinement is required to study Turkish women's health beliefs and breast cancer screening behaviors in various settings.     

Reliability and validity of the Turkish version of Multidimensional Quality of Life Scale--Cancer Version 2 in patients with cancer

This study examined the reliability and validity of the Turkish version of the Multidimensional Quality of Life Scale - Cancer Version 2 (MQOLS-CA2) in 72 people with cancer. The results indicated that the MQOLS-CA2 has good construct validity. Factor analysis confirmed the presence of 5 factors in the MQOLS-CA2: psychological well-being, physical well-being, nutrition, symptom distress, and interpersonal well-being. The correlation between the global scores of the MQOLS-CA2 and Medical Outcomes Study 36-Item Short Form Health Survey was significant (r = 0.78, P =.0001), supporting the criterion validity of the MQOLS-CA2. Results of the test-retest method showed that stability coefficients for the 5 subscales of the MQOLS-CA2 ranged from 0.56 (symptom distress) to 0.91 (general physical well-being). Cronbach alpha coefficients surpassed the 0.70 criterion for all subscales, indicating good internal consistency. The acceptability rate was excellent at 96% completed questionnaires. In conclusion, the findings suggest that the Turkish version of the MQOLS-CA2 is a valid and reliable instrument that can be used in cancer research.     

Comparison of 2 quality-of-life questionnaires in women treated for breast cancer: the RAND 36-Item Health Survey and the Functional Living Index-Cancer

BACKGROUND AND PURPOSE: A variety of health status questionnaires have been used in physical rehabilitation studies involving women with breast cancer, but the usefulness of these questionnaires as measures of physical, mental, and social well-being has not been firmly established in this population. This study was conducted to assess the convergent and discriminative properties of the RAND 36-Item Health Survey and the Functional Living Index-Cancer (FLIC). SUBJECTS: Both questionnaires were administered concurrently to 110 outpatients treated surgically for breast cancer at a National Cancer Institute-designated Comprehensive Cancer Center. METHODS: Bivariate correlations and a multi-trait-multi-method matrix were used to evaluate convergent validity between summary and subscale scores from both questionnaires. Discriminative validity was assessed by testing for expected differences between women who were treated for breast cancer with and without secondary lymphedema. RESULTS: Correlations between overall quality-of-life scores produced by both questionnaires were modest, indicating that the instruments focus on somewhat different aspects of health-related quality of life. Global quality-of-life and physical well-being scores were lower among women with lymphedema secondary to breast cancer. The FLIC demonstrated greater sensitivity to group differences in emotional well-being. DISCUSSION AND CONCLUSION: The results suggest that neither questionnaire can be replaced by the other in studies of women treated for breast cancer. Both questionnaires were able to distinguish physical functioning deficits in women with lymphedema secondary to breast cancer, but symptom- or treatment-specific measures may be required to assess more subtle difficulties related to the emotional aspects of health and functioning in this population.     

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。     

Reliability and validity of Turkish version of clinical stress questionnaire

This study was conducted for the purpose of testing the validity and reliability of the Turkish version of the Clinical Stress Questionnaire, which was developed to examine the stress that nursing students experience in their first clinical experiences that are threatening or challenging. The study sample was comprised of 80 first-year nursing students who had their first clinical practice experience. Internal consistency of the total questionnaire was Cronbach's alpha=0.70 and the factor analysis supported the original construct. Based on these results the Turkish version of the Clinical Stress Questionnaire can be used as a valid and reliable instrument.     

Reliability and validity of the caregiver quality of life index‐cancer (CQOLC) scale in Turkish cancer caregivers

Aims and objectives. The aim of this study was to translate the Caregiver Quality of Life Index‐Cancer into Turkish and test the reliability and validity of the Turkish version of the Caregiver Quality of Life Index‐Cancer in Turkey. Background. Cancer is a chronic illness that affects the entire family and deteriorates the quality of life of cancer caregivers. The Caregiver Quality of Life Index‐Cancer is a widely used instrument to measure quality of life in cancer caregivers. Therefore, identifying and increasing quality of life benefits of cancer caregivers. Design. Methodological research design. Method. This study describes the translation process of The Caregiver Quality of Life Index‐Cancer into Turkish and testing its reliability and validity on quality of life in cancer caregivers. The questionnaire was translated using a back‐translation technique. The statistical analysis was carried out using Cronbach’s alpha to test the internal consistency of the Caregiver Quality of Life Index‐Cancer scale while confirmatory and exploratory factor analyses were carried out using principal component analysis with varimax rotation and Kaiser Normalization to test its construct validity. Results. The Cronbach’s alpha was found to be reliability for the total scale was 0·88 and subscale alpha coefficients ranged from 0·73–0·83. Confirmatory factor analysis resulted in four factor structure: burden, distruptiveness, positive adaptation and financial concerns. Conclusion. The effects of providing care for patients with cancer on caregiver quality of life have not yet been adequately explored in Turkey. The results of this study suggest that the Turkish version of the Caregiver Quality of Life Index‐Cancer is a reliable and valid supplementary measure of the quality of life in cancer caregivers in Turkey. Relevance of clinical practice. In research and practice, valid measurement instruments are needed to assess Quality of Life in Turkish cancer caregivers. The Caregiver Quality of Life Index‐Cancer scale is simple to administer and nurses by using this equipment in routine appointments will be able to better identify caregiver at risk for developing cancer related distress and worse Quality of Life.     

乳腺癌患者益处发现评定量表的信效度检验

目的 评价中文版益处发现评定量表(Benefit Finding Scales,BFS)的信效度.方法 征得源量表作者同意,按照量表引入流程对英文版量表进行翻译、回译、校正、专家内容效度及表面效度评价后最终形成中文版BFS,对293例乳腺癌患者进行问卷调查,评价中文版BFS的信效度.结果 中文版BFS含19个条目,Cronbach α系数为0.911,重测信度为0.812,各条目内容效度I-CVI为0.833～1.000,整个量表平均内容效度S-CVI为0.955,因子分析提取特征值大于1的3个公因子,累积方差贡献率达55.101％,效标关联效度显示中文版BFS与中文版创伤后成长评定量表的相关系数r=0.745.结论 中文版BFS具有良好的信效度,适合我国文化背景下对乳腺癌患者益处发现水平的测量.     

Reliability and validity of the UTBAS-TR (The Unhelpful Thoughts and Beliefs Scale-the Turkish version) in the Turkish population

Abstract

Purpose: This paper decribes the development of the Turkish adaptation of UTBAS (UTBAS-TR) and reports the results concerning its applicability and psychometric structure.

Method: The sample consisted of 81 males and 19 females diagnosed with developmental stuttering in two centres. Test-retest reliability score was obtained by correlating results of repeated aplications of the scale within a one-week interval and a paired t-test was calculated to see the differences in the total and UTBAS I, II and III scores. The internal consistency was assessed using the Cronbach’s alpha. Construct validity was also assessed by examining inter-scale correlations and with the correlations of the UTBAS-TR with two other scales (State-Trait Anxiety Inventory (STAI) and Beck Anxiety Inventory (BAI)).

Result: The internal consistency of the UTBAS-TR and the test and retest reliability score was stati?stically significant. The correlation between UTBAS-TR total score and the UTBAS-TR I, II and III correlations were high. A significant correlation was observed between UTBAS-TR total score with State Anxiety Inventory. However, the correlations between UTBAS-TR-Total Score and Trait Anxiety Inventory and Beck Anxiety Inventory were low.

Conclusion: The UTBAS-TR proved to be suitable for use with the Turkish population.     

Reliability and validity of the continence self-efficacy scale in Turkish women with urinary incontinence

This study investigated the psychometric properties of the Continence Self-Efficacy Scale. Data was collected from 128 women who had urinary incontinence using the following instruments: the Continence Self-Efficacy Scale, the Broome Pelvic Muscle Exercise Self-Efficacy Scale, the International Consultation on Incontinence Questionnaire Short Form, and the Beck Depression Inventory. The validity of the Continence Self-Efficacy Scale was investigated using confirmatory factor analysis and convergent and divergent validity analyses. The reliability of the Continence Self-Efficacy Scale was examined in terms of internal consistency and test-retest correlations. Confirmatory factor analysis indicated a three -factor model that had acceptable goodness-of-fit indices. The convergent validity of the Continence Self-Efficacy Scale was supported by a positive correlation between the Continence Self-Efficacy Scale and the Broome Pelvic Muscle Exercise Self-Efficacy Scale. The divergent validity of the Continence Self-Efficacy Scale was supported by negative relationships between the Continence Self-Efficacy Scale and the Beck Depression Inventory. The Cronbach's alpha values regarding internal consistency were 0.94 for the overall scale and 0.92-0.93 for the subscales. Test-retest correlations were 0.75 for the overall scale and 0.52-0.74 for the subscales. The Continence Self-Efficacy Scale is a valid and reliable instrument for use in Turkish women with urinary incontinence.     

Reliability and validity of the Hospice Quality of Life Scale for Korean cancer patients

The Hospice Quality of Life Scale (HQLS) for Korean cancer patients was developed as follows: 1) item generation by semi-structured interviews and review of existing scales, 2) item reduction by the Delphi method, and 3) reliability and validity test. The final HQLS consisted of 40 questions within 13 domains and the internal consistency was 0.41-0.93. The domain "Family and Economy" was uniquely separated from the general social issues, which reflects the family-oriented Asian culture. For construct validity, the HQLS scores differed significantly according to their Eastern Cooperative Oncology Group Performance Status (known-group validity). Convergent and discriminant success rates were optimal in nine and four subscales, respectively. Total and subscale scores were significantly correlated with the related subscales in the European Organization for Research and Treatment of Cancer QLQ-C30 and the McMaster Quality of Life Scale, which supported the concurrent validity. HQLS was approved as an efficient tool for assessing the quality of life of Korean cancer patients who were receiving hospice and palliative care.     

中文版自我感受负担量表在癌症患者中应用的信效度评价

目的 研究中文版自我感受负担量表(self-perceived burden scale,SPBS)在癌症患者中应用的信、效度.方法 翻译并形成中文版SPBS,采用专家法测量其内容效度.进行预实验,对量表的表面效度进行评价,经过研究小组反复修改和调整后,形成最终量表.对220例癌症患者进行问卷调查以评定该工具的信、效度.结果 中文版SPBS共有8个条目,其Cronbach's α系数为0.874.因子分析得出2个公因子,累计方差贡献率为61.004％.结论 中文版SPBS具有良好的信、效度,适合中国文化背景下癌症患者自我感受负担的测量.     

中文版重返工作准备度量表在乳腺癌患者中的信效度检验

目的:对重返工作准备度量表(readiness for return-to-work scale,RRTW)进行汉化,并检验中文版量表的信效度。方法:采用方便抽样的方法先后对一家医院的350例和三家医院的340例乳腺癌患者进行调查。应用SPSS 21.0和AMOS 21.0软件进行数据分析,以条目-总分Pearson相关性分析对中文版量表进行同质性检验,决断值(CR)分析条目间区分度,内容效度和结构效度(探索性因子分析和验证性因子分析)检验量表效度,Cronbach'sα系数检验量表信度。结果:中文版RRTW项目分析各条目-总分相关系数均在0.5以上,决断值检验结果差异均有显著性意义(P0.001);量表的内容效度为0.97,结构效度中探索性因子分析量表前后两部分分别得到4个和2个公因子,分别解释累计解释方差的74.23%和59.58%,四因子和二因子验证性因子分析所得结构方程模型的各指标整体拟合良好,标准化回归系数为0.61—0.83;量表各维度的Cronbach'sα系数分别为0.753—0.843,重测信度为0.797—0.828。结论:汉化后的中文版RRTW量表具有良好的信效度,可用于测量我国乳腺癌患者的重返工作准备度水平。