Comparative Fit Research Articles

Validation of the 40-Item and 24-Item Short Version of the Person-Centred Obesity Care Instrument for Patients Living with Obesity

Introduction: Person-centred care (PCC) may hold promise for improved healthcare experiences and outcomes among patients living with obesity. A validated instrument to assess the delivery of PCC to patients living with obesity is, however, currently lacking. This study aimed to validate such an instrument. In this article, we describe the development and psychometric testing of the 40-item and 24-item short version of the Person-Centred Obesity Care (PCOC) instrument. Methods: A total of 590 individuals living with obesity (BMI 33.4 ± 3.9) from a representative Dutch sample completed the 49-item PCOC instrument measuring the eight dimensions of PCC (patient preferences, physical comfort, coordination of care, emotional support, access to care, continuity and transition, information and education, and family and friends), and two measures of satisfaction with care. We performed confirmatory factor analyses to verify the factor structure of the instrument and examined its reliability and validity. Results: Fit indicators of the first model with all 49 items showed that the model left room for improvement (comparative fit index [CFI] <0.90). A 40-item version was obtained with satisfactory-to-good fit (standardized root mean square residual [SRMR] = 0.05, root mean square error of approximation [RMSEA] = 0.06, CFI = 0.90). The instrument demonstrated good reliability, and the relationship between the PCOC and two indicators of satisfaction with care supported the validity of the scale. Shortening the instrument only further improved the fit indicators, resulting in the development of a 24-item short version (SRMR = 0.04, RMSEA = 0.05, CFI = 0.96), with similar results in terms of reliability and validity. Conclusion: The 40-item PCOC instrument and the 24-item short version showed to be reliable and valid instruments for the assessment of PCC among patients living with obesity. Based on the results, the 40 and 24-item PCOC are promising tools that can be used by clinicians and researchers to explore PCC delivery for patients living with obesity.

The developmental dyslexia scale for standard mandarin: A study among early primary students

BackgroundDevelopmental dyslexia (DD) is a prevalent neurodevelopmental disease that poses challenges in both early intervention and long-term development for children with DD. However, there is a lack of a standardized and comprehensive tool for the diagnosis of DD in Mainland China. AimTo develop a standardized tool (i.e., Developmental Dyslexia Scale for Standard Mandarin [DDSSM]) for the diagnosis of DD in Mainland China and evaluate its reliability and validity. Methods and proceduresDDSSM consists of 10 subtests. The initial draft was created after Delphi expert consultation, and the final version was revised to improve discriminability with a pilot study involving 450 children from grades 1–3. The reliability and validity were then confirmed with 53 children from grades 1–2. Outcomes and resultsThe Delphi expert consultation demonstrated that the expert panel had good authority, and that all agreed on the subtest setup. The DDSSM exhibited great internal consistency. Confirmatory factor analysis revealed that the model aligns with the theoretical structure (P > 0.05, χ2/df < 2.00, root-mean-square error of approximation (RMSEA) < 0.08, comparative fit index (CFI) > 0.90, TLI > 0.90). The Dyslexia Checklist for Chinese Children and children’s academic performance agreed well with the DDSSM. Conclusions and implicationsThe DDSAM is reliable and valid for assessing and diagnosing DD in Standard Mandarin-speaking primary school children from grades 1–2. What this paper adds?Although a number of scales and tools have been proposed for assessing developmental dyslexia (DD) in Chinese, there is still a lack of diagnostic tools for Mandarin Chinese in Mainland China. In this study, we developed one of the most comprehensive diagnostic tools for DD in Mandarin Chinese for lower graders. We included visual-spatial attention (VA) and compounding awareness (CA), two tests that have been recently suggested as reliable measures for identifying DD in the Chinese language. This assessment tool has been verified for robust reliability and validity.This study also provided confirmation of the core deficits of DD in Chinese, which were orthographic awareness (OA). In addition, VA, rapid automatized naming (RAN) and morphological awareness (MA) were found to be the most important cognitive abilities for word reading in Chinese lower graders in this study.

Socioeconomic status, reserve capacity, and depressive symptoms predict pain in Rheumatoid Arthritis: an examination of the reserve capacity model

BackgroundGuided by the reserve capacity model, we evaluated the unique relationships between socioeconomic status (SES), reserve capacity (helplessness, self-efficacy, social support), and negative emotions on pain in patients with Rheumatoid Arthritis (RA).MethodsThe secondary analysis used baseline, cross-sectional data from 106 adults in a clinical trial comparing behavioral treatments for RA. Patients were eligible if they were ≥ 18 years old, met the ACR criteria for RA (determined by study rheumatologist), had stable disease and drug regimens for 3 months, and did not have a significant comorbid condition. Structural equation modeling evaluated the direct effects of SES, reserve capacity (helplessness- Arthritis Helplessness Index, self-efficacy -Personal Mastery Scale, social support- Social Provisions Scale) and negative emotions (stress and depressive symptoms- Perceived Stress Scale and Hamilton Depression Rating Scale) on pain (Rapid Assessment of Disease Activity in Rheumatology-RADAR & visual analog scale-VAS), and the indirect effects of SES as mediated by reserve capacity and negative emotions. The SEM model was evaluated using multiple fit criteria: χ2 goodness-of-fit statistic, the comparative fit index (CFI), the standardized root mean square residual (SRMR), and the root mean square error of approximation (RMSEA).ResultsParticipants were mostly female (85%), 55.45 years old on average, self-identified as white (61%), Hispanic (16%), black (13%), and other (10%), and had RA for an average of 10.63 years. Results showed that low SES contributed to worse pain, through lower reserve capacity and higher negative emotions. Mediational analyses showed that reserve capacity and negative emotions partially mediated the effect of SES on pain. The final model explained 39% of the variance in pain.ConclusionsThe findings indicate that lower SES was related to worse clinical pain outcomes and negative emotions and reserve capacity (helplessness, social support, and self-efficacy) mediated the effect of SES on pain. A primary limitation is the small sample size; future studies should evaluate this model further in larger, longitudinal approaches. Interventions that target negative emotions in patients with low SES may facilitate better pain control with RA.Trial registrationclinicaltrials.gov NCT00072657 01/02/2004 20/03/2009.

Psychometric validation of the Chinese version of the dry eye-related quality-of-life score questionnaire.

To psychometrically validate the Chinese version of the dry eye-related quality-of-life score questionnaire (DEQS-CHN) among Chinese patients with dry eye. This study involved 231 participants, including 191 with dry eye disease (DED) comprising the dry eye disease group, and 40 healthy participants forming the control group. Participants were required to complete the DEQS-CHN, and Chinese dry eye questionnaire and undergo clinical tests including the fluorescein breakup time (FBUT), corneal fluorescein staining (CFS), and Schirmer I test. To assess the internal consistency and retest reliability, Cronbach's α and the intraclass correlation coefficient (ICC) were employed. Content validity was assessed by item-level content validity index (ICV) and an average scale-level content validity index (S-CVI/Ave). Construct validity was assessed by confirmatory factor analysis. The concurrent validity was assessed by calculating correlations between DEQS-CHN and Chinese dry eye questionnaire. Discriminative validity was evaluated through non-parametric tests, with receiver operating characteristic (ROC) curve serving as conclusive indicators of the questionnaire's distinguishing capability. The Cronbach's α coefficients for frequency and degree of ocular symptoms, impact on daily life, and summary score were 0.736, 0.704, 0.811, 0.818, 0.861, and 0.860, respectively, and the ICC were 0.611, 0.677, 0.715, 0.769, 0.711, and 0.779, respectively. All I-CVI scores ranged from 0.833 to 1.000, with an S-CVI/Ave of 0.956. Confirmatory factor analysis results exhibited a well-fitting model consistent with the original questionnaire [χ 2/df=2.653, incremental fit index (IFI)=0.924, comparative fit index (CFI)=0.924, Tucker-Lewis index (TLI)=0.909, and root mean square error of approximation (RMSEA)=0.065]. There was a moderate positive correlation between the DEQS-CHN and the Chinese dry eye questionnaire (r 2=0.588). The dry eye group demonstrated significantly higher scores compared to the control group, and the area under the curve (AUC) value was 0.8092. The DEQS-CHN has been demonstrated as a valid and reliable instrument for assessing the impact of dry eye disease on the quality of life among Chinese individuals with DED.

Factor analysis of the feeding and eating in AutiSm Together Assessment

BackgroundAutistic children experience high rates of feeding challenges, negatively affecting their.health, eating patterns, and social eating experiences. The Feeding and Eating in AutiSm Together; FEAST, a caregiver-report questionnaire, was developed to characterize feeding challenges in autistic children ages 2 to 12 years. The purpose of this study is to determine the construct validity of the FEAST assessment using a large national sample of autistic children. MethodA large national sample (N = 396) of caregivers completed the online survey. An ordinal confirmatory factor model using a robust weighted least squares approach validated the four predicted groupings of feeding challenges (sensory processing; behavior; oral.motor skills; and gastrointestinal) with generally strong loadings onto the four distinct.factors. ResultsModel fit statistics indicated good model fit (Robust Root Mean Square Error of.Approximation=.080, Robust Comparative Fit Index =.909, Robust Tucker-Lewis.Index=.901) Findings provide preliminary confirmation of the construct validity of the.FEAST assessment to characterize feeding difficulties for autistic children ages 2–12. Small to medium correlations between all factors indicate items successfully targeted.four unique areas of feeding challenge. For all factors, the largest correlation was with.behavior. ConclusionAssessments developed to address the complex feeding and mealtime challenges for.autistic children are essential to identify and integrate the most appropriate intervention.approaches. FEAST offers researchers and clinicians with a comprehensive and psychometrically sound assessment tool to address autistic children’s unique feeding.challenges.

The Patient Specific Functional Scale - Brazil as an instrument for the functional assessment of patients with chronic non-specific low back pain: Construct validity (hypothesis testing and structural validity) and test-retest reliability

The objective was to assess the validity and reliability of the Patient-Specific Functional Scale-Brazil (PSFS-B) in patients with non-specific chronic low back pain. A methodological study was conducted, and 101 volunteers with chronic non-specific low back pain were interviewed and asked to complete the PSFS-B questionnaire and the Oswestry Disability Index-Brazil 2.0 reference questionnaire. The Oswestry Disability Index-Brazil 2.0 is a standardized tool used to assess functional disability of the lumbar spine. A new assessment (follow-up) was conducted one week later using the same instruments. The COSMIN checklist was utilized as a guide. Two questionnaires were employed to assess patients: the Patient-Specific Functional Scale-Brazil (PSFS-Br) and the Oswestry Disability Index-Brazil 2.0 (ODI-Br). Data were analyzed to assess construct validity (hypothesis testing and structural validity), internal consistency, and test-retest reliability. The statistical methods employed included Pearson's correlation coefficient, confirmatory factorial analysis, Cronbach's alpha, and intraclass correlation coefficient. The results of the Patient-Specific Functional Scale-Brazil demonstrated a moderate negative correlation with the ODI-Br in hypothesis testing (r = −0.691 and r = −0.754) and in structural validity (Comparative Fit Index (0.986), Tucker-Lewis Index (0.958), Root Mean Square Error of Approximation (0.194), and Standardized Root Mean Square Residual (0.134). Furthermore, the instrument demonstrated excellent internal consistency (α = 0.951) and test-retest reliability (intraclass correlation coefficient = 0.978), and was additionally validated by the Bland-Altman plot (0.125). In conclusion, the Patient-Specific Functional Scale-Brazil is a valid and reliable tool for the evaluation and follow-up of patients with non-specific chronic low back pain.

Validation of the Jamaican version of the Oral Health Impact Profile (OHIP-14) in adults: JAM-OHIP study

Background: The Oral Health Impact Profile (OHIP-14) is a widely used tool for measuring the effects of oral health-related quality of life (OHRQoL). However, the validity of the OHIP-14 in the Jamaican context, referred to as the Jamaican Oral Health Impact Profile (JAM-OHIP), has yet to be established. Purpose: To determine the validity of the Jamaican language version of the OHIP in evaluating the OHRQoL of Jamaican adults. Methods: The original English version of the Oral Health Impact Profile (OHIP-14) was translated into the Jamaican language using forward and backward translation. The JAM-OHIP was used to evaluate the OHRQoL of 236 individuals at the University of the West Indies Dental Polyclinic. The overall fit was checked using a chi-square test (p &gt; 0.05), comparative fit index (CFI), Tucker–Lewis index (TLI), root mean square error of approximation (RMSEA), and standardized root mean square residual (SRMR). Results: More DMFT (p &lt; 0.01) was associated with high JAM-OHIP scores, and the most impacted domain was physical pain. Cronbach’s alpha and the standardized item alpha for the JAM-OHIP were 0.82. The overall fitting results for the CFA were χ²(68) = 80.558, p = 0.142, and χ²/g.l. = 1.185. The CFI and TLI were 0.996 and 0.994, respectively. The SRMR was 0.072 and the RMSEA was 0.028 (CI95% = [0.000; 0.050]) p = 0.953. Conclusions: The JAM-OHIP instrument was shown to be reliable and valid for the assessment of OHRQoL in the Jamaican adult population.

Internal fit and marginal adaptation of all-ceramic implant-supported hybrid abutment crowns with custom-milled screw-channels on Titanium-base: in-vitro study

BackgroundAdvancements in digital dentistry helped in custom-milling screw-channels in implant-supported restorations; however, the fit of these restorations is still unclear especially for contemporary computer aided designing/computer aided manufacturing (CAD/CAM) materials. This study aimed to compare the internal and marginal fit of Ultra translucent multilayered zirconia versus lithium disilicate implant-supported hybrid abutment crowns (HACs) constructed with custom-milled screw-channels on Titanium-base.Materials and methodsA total of 24 HACs with custom-milled screw-channels were constructed from lithium disilicate (Group LDS) and Ultra translucent multilayered zirconia (Group UT) using digital workflow (n = 12). The internal and marginal gaps of HACs on their corresponding Titanium-bases were assessed using replica technique and stereomicroscope, respectively. After testing for normality, quantitative data were expressed as mean and standard deviation and compared using independent t-test at a level of significance (P ≤ 0.05).ResultsThere was no statistically significant difference between Group LDS and Group UT in terms of marginal and internal fit. The internal and marginal gaps in both groups were within the accepted values reported in literature.ConclusionsUT and LDS HACs with custom-milled screw-channels demonstrated comparable and acceptable internal fit and marginal adaptations to Ti-base, which lied within the range reported in literature.

Development and psychometric evaluation of the self-care of informal caregivers inventory

BackgroundIn recent years, a growing body of literature on informal caregivers’ health and well-being has emerged, highlighting the need for a tool to measure their self-care practices. ObjectiveThe aim of the study was to develop a theory-based instrument measuring the self-care behaviors of informal caregivers and test its psychometric properties. DesignThe initial phase of instrument development entailed a detailed, six-step process (conceptualization, theoretical adaptation, back-translation and cultural adaptation, cognitive interviewing, item enhancement, and content validity), followed by formal psychometric testing (participant engagement, validity, internal consistency reliability, test-retest reliability). SettingStudy conducted at a hospital located in Tehran, Iran. ParticipantsA sample of 234 informal caregivers of cancer outpatients receiving treatment in oncology wards was enrolled. Caregivers had to be 18 years or older, recognized as the primary caregiver by the patient, and willing to provide informed consent. MethodsThe Self-Care of Informal Caregivers Inventory items comprise three dimensions: self-care maintenance (11 items), self-care monitoring (7 items), and self-care management (9 items), which achieved a content validity index rating of 100 % in a panel of experts. Data were collected from caregivers during routine clinic visits. Construct validity was verified through exploratory structural equation modelling and reliability was verified using Cronbach's α and multidimensional model-based reliability. Test-retest reliability was evaluated using the Intraclass Correlation Coefficient. ResultsAll three dimensions showed good model fit indices (self-care maintenance: Comparative Fit Index = 1.00, Tucker-Lewis Index = 0.99, Root Mean Square Error of Approximation = 0.044; self-care monitoring: Comparative Fit Index = 1.00, Tucker-Lewis Index = 1.00, Root Mean Square Error of Approximation = 0.027; self-care management: Comparative Fit Index = 0.99, Tucker-Lewis Index = 0.99, Root Mean Square Error of Approximation = 0.048) and Cronbach's α of 0.88, 0.88, and 0.91, respectively. The overall multidimensional model-based reliability was 0.93. The Intraclass Correlation Coefficient values for the three dimensions were 0.94, 0.60, and 0.51, respectively. ConclusionPreliminary testing provides support for use of the Self-Care of Informal Caregivers Inventory in research. Using this theory-based instrument to assess the self-care practices of informal caregivers can assist in identifying topics to discuss and opportunities for guidance. Tweetable AbstractThe Self-Care of Informal Caregivers Inventory: A validated tool for informal caregivers is useful for research. #Informalcaregivers #SelfCare

Validation of the HIV/AIDS-Targeted Quality of Life (HAT-QOL) for Evaluation of Health-related Quality of Life in People Living with HIV/AIDS in Brazil.

HIV/AIDS-Targeted Quality of Life (HAT-QOL) is an instrument for evaluating health-related quality of life (HRQOL) in people living with HIV (PLWHIV). This has been adapted into Brazilian Portuguese, but its dimensional structure has not been analyzed. This study evaluated the psychometric properties of the Brazilian Portuguese version of the HAT-QOL, using a sample of 319 PLWHIV in Salvador, Brazil. The study performed Exploratory Factor Analysis (EFA) to assess the HAT-QOL dimensional structure. The analysis used a polychoric correlation matrix, Robust Diagonally Weighted Least Squares (RDWLS) as an extraction method, Parallel Analysis for factor retention, robust promin as oblique rotation, and Generalized H-index (G-H) for construct replicability of each factor. Model adequacy was assessed using the Root Mean Square Error of Approximation (RMSEA), Comparative Fit Index (CFI), and Tucker-Lewis Index (TLI). Concurrent validity was evaluated with the 36-item Short Form Health Survey, version 2 (SF-36v2). EFA identified a HAT-QOL six-factor solution: Financial Worries, Sexual Function, Medication Concerns, Life Satisfaction, Health Worries, and Overall Function. This solution showed high G-H indexes, concurrent validity, and satisfactory adequacy indexes (X2 = 231.345, df = 291, p < 0,001; RMSEA = 0.001, CFI = 0.999, TLI = 1.028). HIV Mastery, Disclosure Worries, and Provider Trust domains were not retained in EFA and did not have evidence of concurrent validity. This study proposed a HAT-QOL six-factor model for measuring HRQOL in the Brazilian PLWHIV. Future research could help identify another latent construct from not-included domains.

Psychometric analysis and validation of the SF-34 PREG: An adaptation of the SF-36 for assessing quality of life in pregnant women.

This study aims to perform a psychometric analysis of the 36-item short form health survey (SF-36) in a population of pregnant women and validate an adapted version of the instrument to measure health-related quality of life specific to pregnancy. A cross-sectional study design was carried out with data collection between 7 and 36 weeks of gestation, with a total sample of 547 pregnant women divided into two randomized subsamples. Data were collected between September 2021 and April 2023. An exploratory factor analysis was initially performed on one subsample, followed by a confirmatory factor analysis on the other. Internal consistency was assessed using Cronbach's alpha and McDonald's omega, and correlations between factors were analyzed. Results from the exploratory factor analysis proposed a seven-factor model explaining 56% of the variance. All proposed dimensions achieved Cronbach's alpha scores above 0.75, with a total test score of 0.92. Furthermore, all dimensions exhibited positive and statistically significant correlations. Bartlett's test of sphericity and the Kaiser-Meyer-Olkin test yielded values of 5599 (P < 0.001) and 0.871, respectively. The confirmatory factor analysis reaffirmed this model with good fit indices: χ2 792 (P < 0.001), comparative fit index (CFI) and Tucker-Lewis index (TLI) >0.90, and standardized root mean square residual (SRMR) and root mean square error of approximation (RMSEA) <0.06. This study developed and validated the "SF-34 PREG," an adapted version of the SF-36, specifically designed for pregnant women. The SF-34 PREG demonstrated high reliability and a robust factorial structure, making it a more precise and relevant tool for assessing health-related quality of life during pregnancy. Although it does not include the social functioning dimension of the original SF-36, the SF-34 PREG offers improved relevance and accuracy for this specific population. Further research and clinical use of the SF-34 PREG are recommended.

Investigating the psychometric properties of the Persian version of the Quality of Life Questionnaire for Women Infected with HPV (EQUALI-HPV)

IntroductionPeople with human papiloma virus (HPV) struggle with numerous challenges and needs in physical, and psychological aspects of quality of life related to this virus. Several studies have recommended counseling interventions to improve the quality of life for these individuals. There is also a need for standardized and normalized instruments in Iran to evaluate the effect of educational and therapeutic interventions on the quality of life of these patients. Therefore, this study was conducted in gynecological cancer clinics in Kerman and Mashhad to investigate the psychometric properties of the Persian version of the “Quality of Life Questionnaire for Women Infected with HPV”.MethodsThis study cross-sectional study included 580 women infected with HPV referred to Kerman and Mashhad’s gynecologic cancer clinics. The samples were selected using convenience sampling method in 2023. Content validity, face validity, and construct validity were assessed using explanatory factor analysis (EFA) and confirmatory factor analysis (CFA).ResultsThe results of the content validity assessment, which included the Content Validity Index (CVI) and the Content Validity Ratio (CVR), indicated strong content validity. Additionally, qualitatively confirmed face validity, further supports these findings. The results of the EFA revealed that the Persian version of the EQUALI-HPV questionnaire has a 6-factor structure, with 34 items remaining from the 54 items. These 6 factors accounted for 48.9% of the variance and were confirmed by confirmatory factor analysis and using robust root mean square error of approximation (RMSEA = 0.054), comparative fit index (CFI = 0.928), and Tucker-Lewis index (TLI = 0.920). The content validity results showed that all the items had a good validity ratio and index. Cronbach’s alpha and Raykov’s rho were greater than 0.7 for all dimensions.ConclusionThe results showed that the Persian version of the “Quality of Life Questionnaire for Women Infected with HPV” had acceptable validity and reliability and can be utilized to measure the quality of life of these people and conduct psychological studies.

Development and validation of the mpox stigma scale (MSS) and mpox knowledge scale (MKS)

BackgroundFew validated brief scales are available to measure constructs that may hinder mpox-related prevention and care engagement, such as knowledge and stigma. Both are highly salient barriers to infectious disease care and disease understanding, precursors to evaluating one’s risk and need to, for example, accept vaccination. To address this gap, we developed and validated the Mpox Stigma Scale (MSS) and Mpox Knowledge Scale (MKS).MethodsAs part of a full-scale clinical trial, we offered an optional mpox survey to participants who self-identified as African American or Black, were 18–29 years old, and lived in Alabama, Georgia, or North Carolina (2023, N = 330). We calculated psychometric properties through confirmatory factor analyses (CFA) and applied Comparative Fit Index (CFI), Goodness of Fit Index (GFI), and Tucker-Lewis Index (TLI) values equal to or exceeding 0.90 and Root Mean Square Error of Approximation (RMSEA) and Standardized Root Mean Square Residual (SRMR) values less than 0.08 to determine adequate model fit. We computed internal reliability using Cronbach’s alpha and calculated Pearson or Spearman correlation coefficients between the MSS and MKS and related variables.ResultsFor the MSS, CFA results showed that the one-factor model fit the data well (χ2(df = 5, N = 330) = 34.962, CFI = 0.97, GFI = 0.99, TLI = 0.94, RMSEA = 0.13, SRMR = 0.03). For the MKS, the one-factor model provided a good fit to the data (χ2(df = 6, N = 330) = 8.44, CFI = 0.99, GFI = 0.99, TLI = 0.95, RMSEA = 0.15, SRMR = 0.02). Cronbach’s alphas were MSS = 0.91 and MKS = 0.83, suggesting good to excellent reliability. The MSS was correlated with the MKS (r = .55, p < .001), stigmatizing attitudes (r = .24, p < .001), attitudes towards mpox vaccination (r=-.12, p = .030), and worry about contracting mpox (r = .44, p < .001). The MKS was correlated with worry about contracting mpox (r = .30, p < .001) and mpox disclosure (r=-.16, p = .003).ConclusionsThe MSS and MKS are reliable and valid tools for public health practice, treatment and prevention research, and behavioral science. Further validation is warranted across populations and geographic locations.Trial RegistrationClinicalTrials.gov NCT05490329.

The Reliability and Validity of the Turkish Oral Presentation Evaluation Scale for Nursing Students.

Background and Purpose: In nursing education, students are often expected to make presentations. This study aimed to adapt the Oral Presentation Evaluation Scale (OPES) into Turkish language and investigate its psychometric properties. Methods: This methodological study comprised 311 undergraduate students. The data were analyzed by descriptive statistics, exploratory factor analysis (EFA), confirmatory factor analysis (CFA), Cronbach's alpha (α) coefficient, and item-total correlation. Results: The item-total score correlation coefficients of the scale were between 0.636 and 0.787, and according to the CFA, the factor loads of all items varied between 0.533 and 0.846. The chi-square/standard deviation value, goodness of fit index, comparative fit index, normed fit index, and root mean square error of approximation were 2.056, 0.928, 0.973, 0.949, and 0.058, respectively. Cronbach's α value was 0.951. According to the results of EFA, the scale consists of a two-factor structure in Turkish culture. Conclusions: The OPES is a valid and reliable tool to evaluate the oral presentations of Turkish nursing students.

Validity and reliability of the Checklist for Habitual Physical Activity for people 75 years and older in Japan.

Despite health benefits, many older adults struggle to meet physical activity guidelines, leading to stagnant activity levels. While integrating physical activity into daily routines has been proposed as a promising strategy for older adults, fit-for-purpose measurement tools to assess such routines are lacking. The Checklist for Habitual Physical Activity (CHaPA) was developed based on the positive deviance approach and socio-ecological model to assess daily behaviours encouraging physical activity among adults aged 75 and older. It has been confirmed for its content and face validity. However, to ensure its broader applicability and usefulness, assessing its construct validity and reliability is necessary. Therefore, this study aims to assess the construct validity and reliability of the CHaPA and accordingly update the tool. To validate the construct validity of the CHaPA 22-item version, we conducted item analysis and exploratory and confirmatory factor analyses. We removed inappropriate items based on predefined criteria. Then, we assessed the reliability, internal consistency, test-retest reliability, and measurement errors of the CHaPA final version. Item analyses and factor analyses resulted in the deletion of 11 items. The results of confirmatory factor analysis validated the CHaPA 11-item version with the three-factor structure based on model fit index with χ2/degree of freedom = 1.25, comparative fit index = 0.965, Tucker-Lewis index = 0.952, and root-mean-square error of approximation = 0.038. Omega coefficient (0.90) showed excellent internal consistency. Intraclass correlation coefficient (ICC) demonstrated good test-retest reliability (ICC (1, 2) = 0.77, 95% CI = 0.34-0.89, standard error of measurement = 1.75). We finalised the CHaPA 11-item version as a valid and reliable instrument for assessing daily behaviours conducive to physical activity among individuals aged 75 years and older. We need to examine the methods and effectiveness of disseminating this checklist to ensure its utilisation as a resource for promoting healthy ageing and aiding older adults in maintaining active lifestyles.

Psychometric validation of the Persian version of the CarerQol-7D instrument on caregivers of patients with multiple sclerosis.

Background: Providing informal care can deeply influence, both physically and emotionally, the quality of life (QoL) of caregivers, especially when the disease becomes chronic. CarerQol-7D is one of the most common instruments for measuring informal care. We aimed to develop a Persian version of the CarerQol-7D in the context of Iranian caregivers of patients with multiple sclerosis (MS). To this end, we investigated the validity and reliability of the mentioned instrument. Methods: In this cross-sectional study using consecutive sampling method, the backward-forward translation method was used to achieve the Persian version of CarerQol-7D. Structural equation modeling (SEM) was used to perform confirmatory factor analysis (CFA). Cronbach's alpha was also reported for this instrument for the evaluation of internal consistency. Results: This tool was evaluated based on a sample of 452 caregivers of patients with MS from Sina Hospital, Tehran, Iran. Most of the participants were men (62.6%) and spouses of patients (56.6%). Based on the correlation of caregivers' characteristics, the clinical validity of this tool was observed to be relatively moderate. The Cronbach's alpha for this tool was estimated to be 65%. The normed fit index (NFI) (0.906), relative fit index (RFI) (0.812), incremental fit index (IFI) (0.948), Tucker-Lewis index (TLI) (0.892), comparative fit index (CFI) (0.946), and root mean square error of approximation (RMSEA) (0.049) were the model fit indices for the CarerQol-7D instrument. Conclusion: The findings showed good internal consistency and strong validity of the CarerQol-7D. Thus, we suggest researchers use this instrument to measure the QoL of caregivers for use in economic evaluations.

A General Factor of Hypnotizability Revealed by Confirmatory Factor Analysis

ABSTRACT The objective of this study was to determine the model fit of a standardized hypnotizability measure in a targeted clinical sample. The Stanford Hypnotic Susceptibility Scale, Form C (SHSS:C) was administered to 168 post-menopausal women aged 39 to 75 years. Confirmatory factor analysis was conducted, and comparative fit index (CFI) and root mean square error of approximation (RMSEA) were used to determine goodness of fit. Results indicated that the single-factor structure modeled with twelve indicators based on the individual items on the SHSS:C provided the best description of fit. Results of the present study demonstrate that the SHSS:C has a single-factor structure. These findings suggest that new scales of hypnotizability can be optimized by focusing on the use of items that correlate highly with the overall score representing the unidimensional construct of hypnotizability. The findings should be interpreted with caution due to the small sample size, and further research is needed with other populations to clarify generalizability.

The Inventory of Callous-Unemotional Traits (ICU) self-report version: Factor structure, measurement invariance, and predictive validity in justice-involved male adolescents.

The Inventory of Callous-Unemotional Traits (ICU) is a widely used measure of callous-unemotional (CU) traits that may aid in the assessment of the diagnostic specifier "with limited prosocial emotions," which has been added to diagnostic criteria for conduct disorder. Though there is substantial support for use of the ICU total score, the scale's factor structure has been highly debated. Inconsistencies in past factor analyses may be largely attributed to failure to control for method variance due to item wording (i.e., half of the items being worded in the callous direction and half worded in the prosocial direction). Thus, the present study used a multitrait-multimethod confirmatory factor analytic approach that models both trait and method variance to test the factor structure of the ICU self-report in a clinically relevant, high-risk sample of justice-involved male adolescents (N = 1,216). When comparing the fit of empirical and theoretical models, goodness of fit indices (χ² = 1105.877, df = 190, root-mean-square error of approximation = .063, comparative fit index = .916, Tucker-Lewis index = .878, standardized root-mean-square residual = .051) provided support for a hierarchical four-factor model (i.e., one overarching callous-unemotional factor, four latent trait factors) when accounting for method variance (i.e., covarying positively worded items). This factor structure is consistent with the way the ICU was constructed and with criteria for the limited prosocial emotions specifier. In addition, measurement invariance of this factor structure across age, race, and ethnicity was supported, and the predictive validity of the ICU was supported across these demographic groups in predicting self-reported antisocial behavior and rearrests over a 5-year period following an adolescent's first arrest. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Omissions by Design in a Survey: Is This a Good Choice when using Structural Equation Models?

Abstract Missing observations can arise due to the effort required to answer many questions in long surveys and the cost required to obtain some responses. Implementing a planned missing design in surveys helps reduce the number of questions each respondent needs to answer, thereby lowering survey fatigue and cutting down on implementation costs. The three-form and the two-method design are two different types of planned missing designs. An important consideration when designing a study with omissions by design is to know how it will affect statistical results. In this work, a simulation study is conducted to analyze how the usual fit measures, root mean square error of approximation (RMSEA), standardized root mean square residual (SRMR), comparative fit index (CFI), and Tucker-Lewis index (TLI) perform in the adjustment of a Structural Equation Model. The results revealed that the CFI, TLI, and SRMR indices exhibit sensitivity to omissions with small samples, low factor loadings and large models. Overall, this study contributes to our understanding of the importance of considering omissions by design in market research.

Translation and Validation of the Korean Version of the Global Interprofessional Therapeutic Communication Scale: A Study of the Psychometric Properties among Korean Nurses

Purpose: This study aimed to validate the Korean version of the Global Interprofessional Therapeutic Communication Scale (K-GITCS), with the ultimate goal of improving therapeutic communication and patient engagement among Korean nurses.Methods: The study rigorously adhered to the original authors’ translation guidelines. A sample of 300 registered nurses from a tertiary hospital in South Korea participated in this research. Confirmatory factor analysis was conducted to verify the tool’s validity, and Cronbach’s ⍺ coefficients were calculated to evaluate the internal consistency of the K-GITCS.Results: The instrument’s reliability was substantiated by an adequate comparative fit index (0.984) and a high Cronbach’s ⍺ coefficient (0.94). The empirical results supported the three-factor structure of the K-GITCS, which comprised trust and rapport building, power sharing, and empathy.Conclusion: The study confirms that the K-GITCS is a valid, reliable, and culturally sensitive instrument for assessing therapeutic communication skills among nurses in Korea. It also highlights the importance of culturally tailored therapeutic communication training, particularly for promoting empathy in patient care. The study emphasizes the potential of the K-GITCS to significantly enhance nurses’ therapeutic communication practices, thereby improving the quality and safety of patient care. It is recommended to apply this tool among nursing students, academic institutions, and interprofessional healthcare providers to facilitate structured educational interventions that will improve therapeutic communication.