Cross-cultural adaptation and test-retest reliability assessment of a Swedish version of the exercise adherence rating scale in patients after shoulder surgery.

BACKGROUND: Adherence to prescribed home exercise is an important predictor for the long-term effectiveness of exercise therapy and therefore important to evaluate. The Exercise Adherence Rating Scale (EARS) is a valid and reliable tool to assess exercise adherence behavior, but it is not translated into Swedish. This study aimed to translate EARS into Swedish and to explore the psychometric properties in terms of test-retest reliability, internal consistency as well and possible floor-/ceiling effects. MATERIALS AND METHODS:   A translation and cultural adaptation process followed international guidelines and resulted in EARS-Sv. A total of 30 patients who had undergone shoulder surgery were included in the study and filled out EARS-Sv at two different time points. The test-retest reliability was evaluated through the weighted kappa coefficient and Intraclass Correlation Coefficient (ICC). Cronbach's alpha was used to assess internal consistency. Floor-/ceiling effects were calculated. RESULTS: The test-retest reliability of the questionnaire was good with ICC (0.79, CI 95%) and moderate with weighted kappa-coefficient (MD= 0.58). Cronbach's alpha was considered good (0.88). A ceiling effect was registered in all 6 items of EARS-Sv. CONCLUSION: EARS-Sv has moderate to good test-retest reliability and good internal consistency in patients who have undergone shoulder surgery.

The postoperative results in orthopaedic patients are often dependent on adherence to postoperative home rehabilitation programs.Exercise Adherence Rating Scale (EARS) is a questionnaire assessing adherence to prescribed home exercise and the Swedish version has an acceptable test-retest reliability and good internal consistency for patients who have undergone shoulder surgery.The Swedish version of EARS could be used as a tool to identify patients having difficulties adhering to the prescribed home exercises.

Psychometric properties of the generalized anxiety disorder questionnaire (GAD-7) in a polish postpartum women sample.

OBJECTIVE: Generalized Anxiety Disorder is an international mental health problem. Prevalence for anxiety disorders reported in perinatal period is high and related with adverse parental and child outcomes. Thus, the objective of this study was to investigate the psychometric properties and factorial validity of General Anxiety Disorder-7 questionnaire (GAD-7) in the context of postpartum mothers. METHODS: In this cross-sectional study, 278 mothers (mean age 31.09; SD = 4.42) were recruited at the Neonatology, Gynecology, and Obstetrics Ward. Generalized Anxiety Disorder was assessed with GAD-7, stress with Parental Stress Scale (PSS), while risk of depression with Edinburgh Postpartum Depression Scale (EPDS). Confirmatory factor analysis (CFA) was used to verify factor structure of GAD-7 and the internal consistency was evaluated using reliability coefficients: Cronbach's Alpha and McDonald's Omega. RESULTS: The internal consistency of the GAD-7 was high (Cronbach's Alpha = 0.90 and MacDonald's Omega = 0.91). GAD-7 had significant correlations with the variables examined for construct validity, stress (PSS; r = 0.35, p < 0.01) and risk of depression (EPDS; r = 0.76, p < 0.01). The Confirmatory Factor Analysis results supported a good fit of the data to the model: χ²(df) = 14.19 (14), p = 0.44; Comparative Fit Index (CFI) = 0.99; Tucker-Lewis Index (TLI) = 0.99; Root Mean Square Error of Approximation (RMSEA) = 0.007 (90% C.I. 0.000; 0.059). CONCLUSION: GAD-7 has satisfactory psychometric properties. GAD-7 had significant correlations with the variables examined for construct validity with PSS and EPDS. GAD-7 is a reliable instrument for screening anxiety symptoms in perinatal period in research and clinical setting.

Cross-cultural adaptation of the eHealth Literacy Scale for Brazilian adolescents.

The aim of this study was to undertake a cross-cultural adaptation of the eHealth Literacy Scale (eHEALS) instrument to measure digital health literacy of Brazilian adolescents. eHEALS is a scale consisting of 8 items that measure self-perception related to the consumption of electronic health information. This is a methodological study of cross-cultural adaptation, conducted out from February 2022 to June 2022. The following steps were carried out: a) assessment and adequacy of cultural equivalence by a committee of experts; b) back-translation; c) synthesis of back-translations; d) cognitive testing with 42 Brazilian adolescents, using cognitive interviews with probing questions. All items that were difficult to understand were adapted to the (language) context of Brazilian adolescents. Cronbach's alpha coefficient for eHEALS-BrA was 0.81 and, if one of the items were excluded from the instrument, it ranged from 0.75-0.81. This version of the eHEALS proved to be culturally well-adapted to the context of Brazilian adolescents, and has the potential to measure digital health literacy in this population after having its validation confirmed through psychometric analyses.

[Cross-cultural adaptation and reliability of the Argentine version of the trunk control test in subjects with sequelae of spinal cord injury] / Adaptación transcultural y fiabilidad del trunk control test versión argentina en sujetos con secuela de lesión medular espinal.

Background: spinal cord injury leaves as a sequel in the acute and chronic period, deficiencies in the stability of joint functions and in the function of voluntary movement control. Those with good trunk control have a greater probability of carrying out activities of daily living by themselves; up to now, we do not have reliable tools in Argentina that evaluate trunk control in these subjects. Objectives: to cross-culturally adapt the trunk control test to Argentinean Spanish in subjects with sequelae of spinal cord injury and to establish interobserver and intraobserver reliability. Methodology: the subjects were admitted using a non-probabilistic convenience sampling. Subjects who were between 15 and 75 years old and had a diagnosis of spinal cord injury were included. Subjects who had: another neurological diagnosis, alteration in sensory organs, conditions that prevent the performance of the test, and psychiatric illness were excluded. Results: 30 subjects were included for cross-cultural adaptation and 55 for reliability. Semantic modifications were made to all items and response options. The intraobserver and interobserver reliability of the scale or subdomains did not achieve a sufficient score. Conclusion: the trunk control test was adapted cross-culturally to Argentine Spanish and interobserver and intraobserver reliability was established. The adaptation was achieved through semantic changes and the reliability was not sufficient. In the future, studies should be carried out to improve the reliability and study the validity of the tool.

Introducción: la lesión de la médula espinal deja como secuela en el período agudo y crónico, deficiencias en la estabilidad de las funciones articulares y de la función del control de los movimientos voluntarios. Aquellos con buen control de tronco poseen una mayor probabilidad de realizar por sí mismos  actividades de la vida diaria, hasta el momento, no contamos en Argentina con herramientas fiables  que evalúen el control de tronco en estos sujetos. Objetivos: adaptar transculturalmente al castellano argentino el trunk control test  en sujetos con secuela de lesión medular espinal y establecer la fiabilidad interobservador, intraobservador. Metodología: los sujetos fueron ingresados mediante un muestreo no probabilístico  por conveniencia. Se incluyeron sujetos que: posean entre 15 años a 75 años y tengan diagnóstico de lesión medular espinal, se excluyeron sujetos que posean: otro diagnóstico neurológico, alteración en los órganos sensoriales, condiciones que impidan la realización de la prueba y enfermedad psiquiátrica. Resultados: 30 sujetos fueron incluidos para la adaptación transcultural y 55 para la fiabilidad. Se realizaron modificaciones semánticas en todos los ítems y opciones de respuesta. La fiabilidad intraobservador e interobservador de la escala o de los subdominios no logró un puntaje suficiente. Conclusión:  se adaptó transculturalmente al castellano argentino el trunk control test y se estableció la fiabilidad interobservador, intraobservador. La adaptación se logró a través de cambios semánticos y la fiabilidad no fue suficiente. A futuro se deberán realizar estudios para mejorar la fiabilidad y estudiar la validez de la herramienta.

Psychometric evaluation of the Danish version of the Pain Self-Efficacy Questionnaire in patients with subacute and chronic low back pain.

OBJECTIVE: The Pain Self-Efficacy Questionnaire (PSEQ) is a widely used patient-reported outcome measure designed to assess the level of pain self-efficacy in patients with low back pain (LBP). Although the PSEQ has been translated into Danish, its measurement properties remain unknown in patients with subacute and chronic LBP in Danish outpatient clinics. The aim of this study was to investigate the construct validity, internal consistency, test-retest reliability, and measurement error of the Danish version of the PSEQ in a group of Danish patients with subacute and chronic LBP in a hospital outpatient setting. METHODS: Patients with LBP referred to two Danish outpatient clinics were recruited for this study. Two days after the consultation, the participants were emailed a link to a survey that included the following outcome measures: the PSEQ, the Oswestry Disability Index, the Numeric Pain Rating Scale, and the Tampa Scale of Kinesiophobia. Five days after completion of the survey, a new survey that included the PSEQ was sent to the participants. RESULTS: In total, 109 participants were included for the analysis of construct validity and internal consistency, with 94 participants included for the analysis of test-retest reliability and measurement error. Construct validity was found to be high and internal consistency was acceptable, with Cronbach's alpha = 0.93 (95% confidence interval [CI] = 0.91-0.93). Test-retest reliability was found to be good, with an intraclass correlation coefficient (ICC2.1) of 0.89 (95% CI = 0.82-0.92). The standard error of measurement was calculated to be 4.52 and the smallest detectable change was 12.5 points. CONCLUSIONS: The Danish version of the PSEQ showed acceptable measurement properties in terms of construct validity, internal consistency, and test-retest reliability in a group of patients with subacute and chronic LBP. However, further studies are needed to investigate other aspects of the measurement properties.

The Holland Sleep Disorders Questionnaire: Factorial structure and measurement invariance in a psychiatric sample relative to the general population.

OBJECTIVES: Although common, sleep disorders often remain undiagnosed in psychiatric patients. A screening instrument, like the Holland Sleep Disorders Questionnaire (HSDQ) could improve this. Previous work indicated a 6-factor structure for the HSDQ, but this hasn't been investigated in psychiatric patients. METHODS: HSDQ data was collected in a psychiatric-outpatient sample (n = 1082) and general-population sample (n = 2089). Internal reliability of the HSDQ was investigated and Confirmatory Factor Analyses (CFA) were used to compare 1-, 6-, and second-order 6-factor models in both samples. Next, multigroup-CFA was used to investigate measurement invariance. RESULTS: Except for one subscale, internal reliability was acceptable in both samples. The 6-factor structure model fitted best in both samples and investigation of measurement invariance showed evidence for equality of the overall factor structure (configural invariance). Addition of equality constraints on factor loadings (metric invariance) and item thresholds (scalar invariance) showed good fit for all fit statistics, except for one. Exploratory analyses identified three items for metric and three different items for scalar invariance explaining this non-invariance. CONCLUSION: The HSDQ has a 6-factor structure in psychiatric patients, which is comparable to the general population. However, due to the observed non-invariance, users should be cautious with comparing HSDQ scores between psychiatric and general populations.

Violent attitudes in Portugal and Canada: Measurement invariance and psychometric properties of the Evaluation of Violence Questionnaire.

Theory and evidence suggest that attitudes toward violence are relevant for the explanation, prediction, and reduction of violent behavior. The purpose of the present study was to adapt a measure of violent attitudes-the Evaluation of Violence Questionnaire (EVQ)-for use in Portugal, test the cross-country equivalence, and test the validity of both versions. We found the expected one-factor structure, high internal consistency, and cross-country measurement invariance for the Portuguese and original EVQ with men in Portugal (N = 320) and Canada (N = 298). We also found the expected pattern of correlations with measures of more versus less theoretically relevant constructs: both versions of the EVQ showed the strongest correlations with overall aggression and reactive aggression; slightly lower correlations with proactive aggression; negative correlations with self-control; and the smallest correlations with self-esteem. Our results support the equivalence, reliability, and validity of the Portuguese and original versions of the EVQ.

Human-animal interaction and One Health: establishment and validation of the Brazilian version of the Animal Empathy Scale.

OBJECTIVE: To design and validate a Brazilian version of the Animal Empathy Scale, based on the existing Portuguese version. METHODS: Content validity assessment was performed by expert judges, and the adapted scale was administered to a sample of 386 participants. Exploratory and confirmatory factor analyses were performed. RESULTS: The bifactorial profile of the scale remained consistent, comprising Empathic Concern for Animals (Cronbach's alpha and McDonald's omega coefficients: 0.75) and Emotional Attachment with Animals (Cronbach's alpha and McDonald's omega coefficients: 0.79). Considering the One Health framework, collaborative, multidisciplinary, and intersectoral approaches are essential for achieving optimal health conditions for people, animals, and the environment given their intricate interconnections. Empathy plays a crucial role in promoting proximity between humans and animals, fostering positive connections that encourage biodiversity conservation. CONCLUSION: The 13 statements were retained, confirming the validity of the animal empathy scale for use in Brazil, and a Brazilian version of the Animal Empathy Scale was established.

Structural validation of two person-centred practice inventories PCPI-S and PCPI-C - French version.

BACKGROUND: The shift towards person-centred care has become integral in achieving high-quality healthcare, focusing on individual patient needs, preferences, and values. However, existing instruments for measuring person-centred practice often lack theoretical underpinnings and comprehensive assessment. The Person-centred Practice Inventory - Staff (PCPI-S) and the Person-centred Practice Inventory - Care (PCPI-C) were developed in English to measure clinicians' and patients' experience of person-centred practice. The aim of this study was to investigate the psychometric properties of the French version of the PCPI-S and PCPI-C. METHODS: A multi-centred cross-sectional study was conducted in six hospitals in French-speaking Switzerland. Construct validity of the PCPI-S and the PCPI-C was evaluated by using confirmatory factor analysis and McDonald's Omega coefficient was used to determine the internal consistency. RESULTS: A sample of 558 healthcare professionals and 510 patients participated in the surveys. Psychometric analyses revealed positive item scores and acceptable factor loadings, demonstrating the meaningful contribution of each item to the measurement model. The Omega coefficient indicated acceptable to excellent internal consistency for the constructs. Model fit statistics demonstrated good model fit for the PCPI-S and PCPI-C. CONCLUSIONS: The findings support the construct validity and internal consistency of the PCPI-S and PCPI-C in assessing person-centred practice among healthcare professionals and patients in French-speaking Switzerland. This validation offers valuable tools for evaluating person-centred care in hospital settings.

Cross-Cultural Adaptation and Psychometric Evaluation of the Brazilian Portuguese Version of the Nocturia Quality-of-Life Questionnaire.

INTRODUCTION AND HYPOTHESIS: The objective was to cross-culturally adapt and check for the reliability, internal consistency, and validity of the Nocturia Quality of Life Questionnaire (N-QoL) in Brazilian Portuguese (N-QoL-Br). METHODS: The questionnaire was translated according to international guidelines, included forward-translation, back-translation, and consensus among an expert committee. Participants with nocturia completed the Pittsburgh Sleep Quality Index, International Consultation on Incontinence Questionnaire Overactive Bladder, and the General Quality of Life Assessment Questionnaire SF-36 (Medical Outcomes Study 36-Item Short-Form Health Survey), in addition to the N-QoL-Br. The Brazilian version was applied in men and women with nocturia twice within a range of 4 weeks. Psychometric properties such as content validity, construct validity, internal consistency, and test-retest reliability were tested. RESULTS: Content validity was considered adequate. Eighty-four men and women participated in the study. Good internal consistency in the domains and final score of the N-QoL-Br was observed, with Cronbach α greater than 0.9. The test-retest reliability was also high, with an intraclass correlation coefficient greater than 0.9 for the domain sleep/energy, bother/concern, and total score (0.98, 0.98, and 0.97 respectively). CONCLUSIONS: The Portuguese version of the N-QoL-Br presents good internal consistency and reproducibility and it can be considered adequate and valid for evaluating the impact of nocturia on the quality of life of men and women in the Brazilian population.

Short Form of Mental Health Literacy Questionnaire for Adults: Psychometric Properties of Serbian Version.

Mental health literacy (MHL) has been widely explored by researchers who focus on youth mental health. However, there is little data related to the validity and reliability of the tools for the assessment of MHL constructs. The present study aimed to adapt the short version of Mental Health Literacy Questionnaire for young adults in Serbian sample and examine its psychometric properties. Translation and adaptation of items were performed using the following procedures: item are translated from English or Serbian by a bilingual translator and using a think-aloud procedure, back-translation, semantic comparison of the translation, and analysis of the translated version by the original version of the manuscript. The sample consisted of 344 participants aged 17 to 25 years, which is in accordance with the recommended number of participants needed for quantitative instrument validation studies. Confirmatory factor, internal consistency, and external validity analyses were performed. The results supported the validity of a shorter version of the questionnaire (MHLq-SVa), composed of 16 items that fit with four previously defined MHL dimensions (knowledge, beliefs, help-seeking intentions, and self-help strategies). Internal consistency, between-factor correlations, and correlations with other relevant mental health constructs further supported the adequacy of the instrument's psychometric properties. We recommend the MHLq-SVa as valid and reliable measure for assessing MHL in young adults and encourage further exploration at more diverse and representative samples.

Peace, equanimity and acceptance in the cancer experience: validation of the German version (PEACE-G) and associations with mental health, health-related quality of life and psychological constructs.

BACKGROUND: Systematic reviews and meta-analyses reveal the importance of an accepting attitude towards cancer for mental health and functional coping. The aim of this study was to examine the psychometric properties of the German translation of the Peace, Equanimity, and Acceptance in the Cancer Experience (PEACE) questionnaire (Mack et al., 2008) and to investigate its associations with mental health, health-related quality of life (HRQoL) and related constructs. METHODS: The German version of the PEACE (PEACE-G) was created and validated with cancer patients in a cross-sectional two center questionnaire study. Construct validity was tested with confirmational factor analyses (CFA); Cronbach's alpha was used to determine internal consistency of items. We further examined associations with depression (PHQ-8), anxiety (GAD-7), distress (NCCN distress thermometer), HRQoL (SF-12), psychological flexibility (AAQ-II), resilience (RS-11) and acceptance scales, to evaluate concurrent and divergent validity. RESULTS: N = 213 cancer patients with different tumor entities participated in this study. Results of the CFA replicated the two-factor solution of the original PEACE (peaceful acceptance and struggle with illness) with satisfactory psychometric properties. Peaceful acceptance showed negative associations with depression, anxiety, distress, psychological inflexibility, and positive associations with HRQoL, acceptance, resilience, and mindfulness. Results of sensitivity analyses indicate a third factor (injustice/anger). CONCLUSIONS: The results demonstrate the validity and reliability of PEACE-G in cancer patients and point to the essential role of acceptance- and mindfulness-based interventions in psycho-oncology. Further studies are needed to investigate the different facets of struggle with the cancer illness.

New norm values of the brief resilience scale (BRS) from the German general population with new post-COVID-19 data.

BACKGROUND: The concept of psychological resilience has spurred extensive research across various fields, with the Brief Resilience Scale (BRS) emerging as a concise tool to measure an individual's ability to rebound from stress. It has been translated into multiple languages, including German, but the validation of the German version occurred prior to the COVID-19 pandemic. Therefore, the main objective of this study was to examine new norm values and psychometric properties of the BRS. METHODS: Norm values, the factor structure, reliability and validity of the BRS were examined using data from a representative survey of the German general population (N = 2522). RESULTS: The results indicated that the method-factor model showed the best fit, suggesting a nuanced understanding of resilience beyond a single-factor approach. The BRS demonstrated good convergent and discriminant validity based on both latent and manifest correlations. Moreover, the study revealed increasing postpandemic resilience scores. CONCLUSIONS: The results of this study provide support for the psychometric reliability and validity of the German version of the BRS after the COVID-19 pandemic and underscore the importance of assessing resilience amidst evolving societal challenges and highlight the need for further exploration in diverse populations.

Validation of Rosenberg self-esteem scale among Norwegian adolescents - psychometric properties across samples.

BACKGROUND: Self-esteem refers to the evaluative and affective dimensions of the self-concept and is important for positive mental health and overall functioning during adolescence. The Rosenberg Self-esteem scale (RSES) is one of the most frequently used and widely accepted instruments assessing self-esteem; however, the psychometric properties of the instrument have not been investigated in a Norwegian adolescent population. The present study's aim is to investigate the factor structure, construct validity and reliability of the RSES among adolescents 14-21 years. METHODS: The study was based on two cross-sectional samples (n = 1,233/ n = 1,816) of adolescents from rural and urban areas in Mid-Norway. Concerning the dimensionality of the RSES, two measurement models were tested using Principal Component Analysis and Confirmatory Factor Analysis: a one-factor model and a two-factor-model. RESULTS: The results show that a two-factor solution of positive and negative aspects of self-esteem representing "perceived personal competence" and "self-value" had the best fit across the two adolescent samples. The RSES also showed high reliability and correlated in expected directions with measures of life satisfaction, stress, and self-efficacy, supporting the convergent validity of the instrument. CONCLUSION: The psychometric properties of the RSES need to be further evaluated in Norwegian adolescent populations based on the dimensionality found in the present study; however overall, the results indicate that the instrument is appropriate for assessing self-esteem among Norwegian adolescents.

Validation of factor structures of the Drinking Motives Questionnaire among the Czech young and adult general population.

BACKGROUND: Alcohol use is one of the leading public health concerns in the Czech Republic. Drinking motives play a vital role in both initiation and subsequent alcohol use. A revised version of the self-report Drinking Motives Questionnaire (DMQ-R) has been proposed to assess these motives. The present study aims to validate the DMQ-R in the Czech general population. METHODS: A total sample of 1,784 Czech participants completed a national survey. For the analysis, only a sub-sample of the past 12 months alcohol users was used: N = 1,123; 52.8% male; mean (SD) age = 40.2 (13.3). Drinking motives were assessed by the adopted Czech version of the DMQ-R. Both confirmatory (CFA) and exploratory factor analysis (EFA) were conducted to examine the factorial structure of the instrument. The age of the participant was additionally considered in the analysis (15-24 years as opposed to 25-64 years). RESULTS: The CFA supported the four-factor model in the 25-64 age group. The analysis supported the construct validity of the Social, Conformity, and Coping factors. The Enhancement factor retained only two items and was found to refer more to a domain of 'Pleasant Feeling'. For the 15-24 age group, the hypothesised four-factor structure was not corroborated. CONCLUSIONS: The Czech version of the DMQ-R was found to be a reliable measurement tool of the Social, Conformity, and Coping motives. Future research should investigate the dimensionality of the instrument items presumed to correspond to the Enhancement motives. This should be conducted particularly among adolescents and young adults aged 15-24 years, where administering the DMQ-R with a large enough sample is also needed.

Satisfaction with family life scale: a validity and reliability study in the Turkish context.

BACKGROUND: The family is one of the most important pillars of society. They provide strong feelings of security, emotional support, and belonging. Family health has a significant impact on the welfare of people and society as a whole. OBJECTIVES: This study aimed to create the Satisfaction with Family Life Scale (SWFLS) for Türkiye by modifying the well-known Satisfaction with Life Scale (SWLS) first developed by Diener et al. (1985) and to evaluate its psychometric properties. METHOD: The present study examined the factor structure, measurement invariance, convergent validity, and internal consistency of the SWFLS. Confirmatory factor analyses (CFA) were performed on data from a research group of 646 participants aged 18-71 years (M = 31.71, SD = 11.79) in Study 1. As part of the validity assessment, CFA confirmed the unidimensional structure of the SWFLS. The reliability of the scale was assessed using Cronbach's alpha (α), composite reliability, and the McDonald 0mega (ω). In Study 2, the scale was administered to a new group of 555 participants aged 18 to 67 years (M = 36.4, SD = 9.73) to assess its criterion validity. Test-retest reliability was assessed using a sample of 48 undergraduate students via the intraclass correlation coefficient model 2.1 (ICC2,1). RESULTS: The CFA's results verified the SWFLS's single-factor model. The internal consistency coefficients of Cronbach's α and McDonald's ω were both 0.93. The composite reliability value was 0.94. The result of test-retest reliability (ICC2,1) was 0.96 and ranged from the ICC2,1 value of 0.85 to 0.90 for items of the SWFLS. Multigroup analysis supported full measurement invariance across genders for the SWFLS. Corrected item correlations ranged from 0.75 0.85. The Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS) and SWFLS were shown to have a positive correlation (r = .483, p 0.001), which supports the idea that the two scales have similar convergent validity. CONCLUSIONS: Based on these results, the Turkish SWFLS version can be utilized to measure family life satisfaction in the Turkish sample and has appropriate psychometric validity and reliability.

Quality Measurement of Consumer Health Questions: Content and Language Perspectives.

BACKGROUND: Health information consumers increasingly rely on question-and-answer (Q&A) communities to address their health concerns. However, the quality of questions posted significantly impacts the likelihood and relevance of received answers. OBJECTIVE: This study aims to improve our understanding of the quality of health questions within web-based Q&A communities. METHODS: We develop a novel framework for defining and measuring question quality within web-based health communities, incorporating content- and language-based variables. This framework leverages k-means clustering and establishes automated metrics to assess overall question quality. To validate our framework, we analyze questions related to kidney disease from expert-curated and community-based Q&A platforms. Expert evaluations confirm the validity of our quality construct, while regression analysis helps identify key variables. RESULTS: High-quality questions were more likely to include demographic and medical information than lower-quality questions (P<.001). In contrast, asking questions at the various stages of disease development was less likely to reflect high-quality questions (P<.001). Low-quality questions were generally shorter with lengthier sentences than high-quality questions (P<.01). CONCLUSIONS: Our findings empower consumers to formulate more effective health information questions, ultimately leading to better engagement and more valuable insights within web-based Q&A communities. Furthermore, our findings provide valuable insights for platform developers and moderators seeking to enhance the quality of user interactions and foster a more trustworthy and informative environment for health information exchange.

Design and validation of AQUA CHILD-Pre-aquatic questionnaire assessing child development.

PURPOSE: We developed a proxy questionnaire for parents of children with Developmental Delay (DD) to provide comprehensive information for instructors about the child's functioning before participating in aquatic activities. This dedicated information will enable a high-quality treatment plan to promote the child's functioning in everyday life. METHODS: Based on the International Classification of Functioning, Disability, and Health (ICF) Coreset development and linking rules method, a set of questions was constructed in a preliminary process. A draft version was sent to instructors and parents in Israel. Seventy-five questionnaires from instructors and 25 from parents returned to the statistical analysis procedure. Reliability and face validity were analyzed by experts. RESULTS AND CONCLUSIONS: The questionnaire showed high validity and reliability for its purposes and allowed self-completion by the parents.

Psychometric properties of computerized adaptive testing for chronic obstructive pulmonary disease patient-reported outcome measurement.

BACKGROUND: Computerized adaptive testing (CAT) is an effective way to reduce time, repetitious redundancy, and respond burden, and has been used to measure outcomes in many diseases. This study aimed to develop and validate a comprehensive disease-specific CAT for chronic obstructive pulmonary disease (COPD) patient-reported outcome measurement. METHODS: The discrimination and difficulty of the items from the modified patient-reported outcome scale for COPD (mCOPD-PRO) were analyzed using item response theory. Then the initial item, item selection method, ability estimation method, and stopping criteria were further set based on Concerto platform to form the CAT. Finally, the reliability and validity were validated. RESULTS: The item discrimination ranged from 1.05 to 2.71, and the item difficulty ranged from - 3.08 to 3.65. The measurement reliability of the CAT ranged from 0.910 to 0.922 using random method, while that ranged from 0.910 to 0.924 using maximum Fisher information (MFI) method. The content validity was good. The correlation coefficient between theta of the CAT and COPD assessment test and modified Medical Research Council dyspnea scale scores using random method was 0.628 and 0.540 (P < 0.001; P < 0.001) respectively, while that using MFI method was 0.347 and 0.328 (P = 0.007; P = 0.010) respectively. About 11 items (reducing by 59.3%) on average were tested using random method, while about seven items (reducing by 74.1%) on average using MFI method. The correlation coefficient between theta of the CAT and mCOPD-PRO total scores using random method was 0.919 (P < 0.001), while that using MFI method was 0.760 (P < 0.001). CONCLUSIONS: The comprehensive disease-specific CAT for COPD patient-reported outcome measurement is well developed with good psychometric properties, which can provide an efficient, accurate, and user-friendly measurement for patient-reported outcome of COPD.

Translation and Cross-Cultural Adaptation of the Osteoarthritis Knowledge Scale Into Turkish.

BACKGROUND: The Osteoarthritis Knowledge Scale (OAKS) is a validated tool for assessing knowledge about hip and knee osteoarthritis (OA). However, to date, there has been no translation and adaptation of the OAKS for the Turkish population. OBJECTIVES: To translate and cross-culturally adapt the OAKS into Turkish and to assess its psychometric properties in the Turkish population with and without hip or knee OA. METHODS: The OAKS was translated following accepted guidelines. A validation study assessed internal consistency, test-retest reliability and measurement error. An exploratory factor analysis was conducted to assess the factor structure. RESULTS: A total of 278 participants (n = 70 with hip OA, n = 105 with knee OA, and n = 103 without OA) were included. Internal consistency was 0.72, 0.79 and 0.79 for participants with hip OA, knee OA, and no OA, respectively. The test-retest intraclass correlation coefficient was 0.72 (95% CI; 0.45-0.85), 0.89 (95% CI; 0.82-0.93) and 0.88 (95% CI; 0.79-0.93) for participants with hip OA, knee OA and no OA, respectively. It had three principal components accounting for 57.2% of the total variance. CONCLUSIONS: The Turkish version of the OAKS is a reliable and valid tool for measuring OA knowledge in the Turkish population, including those with and without hip and knee OA. Test-retest reliability was below acceptable levels in the population with hip OA only. Therefore, we recommend that the ICC be interpreted with caution when used in this population.