Coefficient Omega Research Articles

Relationship Maintenance Scale in Young Couples: Validity Evidence and Reliability of a Short Scale in Peru

Relationship maintenance has shifted from understudied to extensively researched in the past two decades due to its close association with satisfaction. This study aimed to validate the Relationship Maintenance Scale (EMP) in a sample of young adults in Lima. The sample included 899 participants aged 18–25 (Mean = 20.67, SD = 2.54); 690 females (76.80%) and 209 males (23.20%), all in relationships of at least three months (Mean = 22.05, SD = 19.95). Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were used to determine the EMP’s structure, with Omega coefficient (ω) estimating reliability. Results indicated a four-factor structure for EMP, removing items 8, 9, 12, and 14, demonstrating good fit (SRMR = .043; CFI = .977; TLI = .971; RMSEA = .058). EMP showed acceptable reliability across factors: Companionship (ω = .78), Affectivity (ω = .83), Complementarity (ω = .77), and Shared interaction (ω = .70), with the latter being less stable. EMP correlated as expected with relationship satisfaction (r ≥ .50). In conclusion, EMP is a valid and reliable instrument for future Spanish studies, with further research on psychometric properties recommended.

Validity and reliability of the italian-Neonatal skin risk assessment scale (i-NSRAS)

BackgroundThe skin of infants has important anatomical and physiological differences from that of children and adults. Because of skin immaturity, reduced mobility, neurological changes, and the need for medical devices, infants are at high risk for pressure injuries. Specific, validated tools are needed to assess the risk of pressure injuries in this population. ObjectivesTo assess the psychometric properties of the Italian version of Neonatal Skin Risk Assessment Scale (construct validity, internal consistency and reliability). MethodA cross-sectional descriptive study was conducted in the neonatal units of the two Italian hospitals. 200 infants were examined 3 times by 54 nurses to assess the risk of pressure injuries. Exploratory and confirmatory factor analysis were performed jointly to assess construct validity. Internal consistency was analyzed using McDonalds omega coefficient and Cronbach's alpha, while intra and interobserver agreement using Intraclass Correlation Coefficients (ICC). ResultsExploratory factor analysis confirmed a 2-factor model; the factor “duration and intensity of pressure” explained four subscales (mental state, mobility, activity and nutrition), while “skin immaturity” explained the subscales (general physical condition and skin moisture). Confirmatory factor analysis results indicated good model fits (X2/df = 0.84, p = 0.002, RMSEA = 0, NNFI = 1.01, NFI = 0.98 y CFI = 1 (M1 with MI). The italian-Neonatal Skin Risk Assessment Scale showed a good internal consistency, McDonalds omega coefficient and Cronbach's alpha both 0.86. An excellent intra and inter observer reliability was also observed, ICC 0.99 and 0.98 respectively. ConclusionThe psychometric characteristics indicate that the italian-Neonatal Skin Risk Assessment Scale is useful, valid and reliable for measuring risk of pressure injuries in the neonatal population.Implications for Clinical Practice.This is the first valid and reliable newborn-specific scale that assesses the presence of medical devices. Its use could enable efficient management of preventive resources, early classification of newborns at risk and assignment of preventive interventions, facilitate the development of risk assessment protocols.

A reliable instrument for making use of an overly neglected source of information on personality: The French adaptation of the Big Five Inventory-2 (Bfi-2) informant-report form

ObjectivesThe assessment of personality traits is most often based on self-report. However, a growing body of research has shown that informant-report is a valuable and too often overlooked source of unique information. The aim of this study was to validate the French version of the informant-report form of the Big Five Inventory-2 (BFI-2) which assesses 15 facet traits in addition to the five major trait domains. MethodsWe asked 699 psychology and sports science and technology students to describe a person they knew well using the BFI-2 and obtained 661 valid records with demographic information. The data were analyzed using a bi-factor exploratory structural equation model with five bifactors corresponding to the Big Five domains, and three group factors (facets) each. ResultsThis model had an excellent overall fit. Cronbach's alpha coefficients for the five domains were very satisfactory and the McDonald's omega coefficients were even better. The scales that measured the five major factors were therefore highly reliable, although Extraversion was somewhat less so. The scales measuring facets all had high reliability as measures of the whole formed by the major factor and the group factor. In addition, ten of them were reliable measures of their specific factor, and the remaining five appeared to be pure measures of the five domains. ConclusionsThe informant-report form of the BFI-2 is a reliable instrument which is easy and quick to administer. These qualities should enable clinicians and researchers to exploit the much-neglected source of original information provided by informant-reports.

Evaluating the dimensionality of L2 grit: A confirmatory bifactor model

This study applied bifactor models to evaluate the dimensionality of two L2 grit models: the 2-factor model (Teimouri et al., 2022) and the 3-factor model we proposed based on Datu et al. (2017). We tested the bifactor models in conjunction with several feasible models including the unidimensional models, the correlated-factors models, and the second-order factor models. Our objective was to investigate whether the grit models effectively measure a unidimensional general construct while also assessing the viability of the domain-specific subconstructs. We utilized a range of bifactor statistical indices to evaluate the unidimensionality of the grit instrument, including omega coefficients (ω), omega subscale coefficients (ωs), omega hierarchical coefficients (ωH), omega hierarchical subscale coefficients (ωHs), explained common variance (ECV), Percent of Uncontaminated Correlations (PUC), item ECV (I-ECV), and construct replicability H-index. The major findings include: (1) the general L2 grit construct comprising 3 domain-specific subconstructs can be treated as essentially unidimensional; (2) the sum scores of the 3-factor grit scale can reliably measure a general L2 grit construct; (3) an alternative version consists of 8 items fits a unidimensional model well. These findings offer valuable implications regarding how to effectively use the sum scores and which items best represent a unidimensional construct.

Validating a Short Version of the Intolerance of Uncertainty Scale-12 (IUS-12)

Background: This study aims to validate the short version of the Intolerance of Uncertainty Scale-12 (IUS-12).Methods: A comprehensive set of questionnaires, including the IUS-12, STAI-T, PSWQ, CES-D, and K-CSI, was administered and completed by 404 participants. The average age of the participants was 31.29 years (SD=9.18), comprising 114 men, 287 women, and 3 individuals identifying with the other gender. We conducted a factor analysis on the collected data and compared the fit indices of one-factor, two-factor, and bifactor models. Furthermore, a multiple-group confirmatory factor analysis evaluated measurement invariance between the men’s and women’s groups. Correlational analyses were also conducted.Results: Data from the study show that the bifactor model was the most appropriate, demonstrating good internal consistency. The Omega coefficients and explained common variance were computed to evaluate the dimensionality of the IUS-12, validating the use of the total score of the scale. Its factor model also showed that the measurement invariance sustained between two gender groups. The correlation analyses between the IUS-12 and other scales assessing attributes such as trait anxiety, worry, depression, and avoidance coping strategy supported convergent validity.Conclusions: These findings suggest that the IUS-12 is a reliable and valid measure for assessing the intolerance of uncertainty. The study also discusses its limitations and offers recommendations for future research endeavors.

Reliability and Validity of an Automated Model for Assessing the Learning of Machine Learning in Middle and High School: Experiences from the “ML for All!” course

The insertion of Machine Learning (ML) in everyday life demonstrates the importance of popularizing an understanding of ML already in school. Accompanying this trend arises the need to assess the students’ learning. Yet, so far, few assessments have been proposed, most lacking an evaluation. Therefore, we evaluate the reliability and validity of an automated assessment of the students’ learning of an image classification model created as a learning outcome of the “ML for All!” course. Results based on data collected from 240 students indicate that the assessment can be considered reliable (coefficient Omega = 0.834/Cronbach's alpha α=0.83). We also identified moderate to strong convergent and discriminant validity based on the polychoric correlation matrix. Factor analyses indicate two underlying factors “Data Management and Model Training” and “Performance Interpretation”, completing each other. These results can guide the improvement of assessments, as well as the decision on the application of this model in order to support ML education as part of a comprehensive assessment.

Validation of the Arabic version of the brief irritability test (Ar-BITe) in non-clinical adolescents

BackgroundDespite the substantial clinical relevance of irritability in the development and maintenance of several mental disorders and its negative effects on functioning, no valid and reliable measures are available yet to identify the presence and consequences of irritability as a distinct construct among the Arabic-speaking populations. To bridge this gap, and help advance this field in the under-researched Arab region, we aimed to validate an Arabic-language version of the Brief Irritability Test (BITe).MethodsEligible participants were native Arabic-speaking non-clinical adolescents from Lebanon; 527 participants aged 15.73 ± 1.81 years (56% females) completed the survey.ResultsUtilizing the Confirmatory Factor Analysis approach, we found that the five items of the Arabic BITe loaded into a single factor structure. The scale showed excellent reliability, as both Cronbach’s alpha and McDonald’s omega coefficient values were of 0.88. Multi-group analyses showed invariance across sex groups in our sample at the configural, metric, and scalar levels. Female adolescents exhibited higher BITe scores than their male counterparts (14.01 vs. 13.25), but this difference did not reach the statistical significance. Good concurrent validity was supported based on positive correlations between irritability scores and measures of aggression, anger and hostility (r Pearson’s coefficients ranging from 0.35 to 0.42), as well as positive correlations with insomnia symptoms scores.ConclusionThe present findings allow us to conclude that the Arabic version of the BITe is a unidimensional, reliable, valid, brief, and economic self-report measure of the irritability construct for both male and female Arabic-speakers. Providing an Arabic validated version of the BITe will hopefully foster the research efforts of the Arab scientific community in this area, and promote the implementation of timely, evidence-informed and culturally-sensitive mental health interventions that appropriately address irritability-related problems and consequences among Arab young populations.

Investigating the factor structure and measurement invariance of the eating disorder examination questionnaire (EDE-Q) among cisgender gay men and lesbian women from the United States

BackgroundAlthough the Eating Disorder Examination-Questionnaire (EDE-Q) is one of the most widely used self-report assessments of eating disorder symptoms, evidence indicates potential limitations with its original factor structure and associated psychometric properties in a variety of populations, including sexual minority populations. The aims of the current investigation were to explore several previously published EDE-Q factor structures and to examine internal consistency and measurement invariance of the best-fitting EDE-Q model in a large community sample of cisgender gay men and cisgender lesbian women.MethodsData were drawn from 1624 adults (1060 cisgender gay men, 564 cisgender lesbian women) who participated in The PRIDE Study, a large-scale longitudinal cohort study of sexual and gender minorities from the United States. A series of confirmatory factor analyses (CFAs) were conducted to explore the fit of eight proposed EDE-Q models; internal consistency (Cronbach’s alphas, Omega coefficients) and measurement invariance (multi-group CFA) were subsequently evaluated.ResultsA brief seven-item, three-factor (dietary restraint, shape/weight overvaluation, body dissatisfaction) model of the EDE-Q from Grilo et al. (Obes Surg. 23:657–662, 2013), consistently evidenced the best fit across cisgender gay men and lesbian women. The internal consistencies of the three subscales were adequate in both groups, and measurement invariance across the groups was supported.ConclusionsTaken together, these findings support the use of the seven-item, three-factor version of the EDE-Q for assessing eating disorder symptomatology in cisgender gay men and lesbian women. Future studies can confirm the current findings in focused examinations of the seven-item, three-factor EDE-Q in diverse sexual minority samples across race, ethnicity, socioeconomic status, and age ranges.

Adaptation and psychometric study of the scale for the measurement of fear and anxiety of COVID-19 disease in pregnant women (AMICO_Pregnant).

The aim of this research was to adapt and explore the psychometric properties of a specific scale to assess the levels of fear and anxiety of COVID-19 disease in pregnant women. An adaptation phase, by a panel of experts, and a psychometric descriptive cross-sectional study were carried out on the final version of the 16-item, self-administered AMICO_Pregnant scale. Univariate and bivariate analyses were carried out, followed by exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). The consistency of the scale was assessed using the Omega coefficient and Cronbach's Alpha. With a sample of 1,013 pregnant women living in Spain and over 18 years of age, the mean age was 33 years. The scale showed a bifactor structure (anxiety and fear) that was confirmed with good fit parameters. Reliability was assessed in terms of internal consistency by calculating Cronbach's Alpha coefficient (0.95) and McDonald's Omega coefficient (0.94) as indicators of robustness of the scale's reliability. The AMICO_Pregnant scale of 16 items with scores ranging from 1 to 10 is a valid and reliable tool to assess levels of anxiety and fear of COVID_19 in Spanish pregnant women. Pregnant women have shown moderate levels of anxiety and fear regarding the COVID_19 disease in the final phase of the pandemic.

Reliability of the Frailty Index Among Community-Dwelling Older Adults.

Consistent and reproducible estimates of the underlying true level of frailty are essential for risk stratification and monitoring of health changes. The purpose of this study is to examine the reliability of the frailty index (FI). A total of 426 community-dwelling older adults from the FRequent health Assessment In Later life (FRAIL70+) study in Austria were interviewed biweekly up to 7 times. Two versions of the FI, one with 49 deficits (baseline), and another with 44 (follow-up) were created. Internal consistency was assessed using confirmatory factor analysis and coefficient omega. Test-retest reliability was assessed with Pearson correlation coefficients and the intraclass correlation coefficient. Measurement error was assessed with the standard error of measurement, limits of agreement, and smallest detectable change. Participants (64.6% women) were on average 77.2 (±5.4) years old with mean FI49 at a baseline of 0.19 (±0.14). Internal consistency (coefficient omega) was 0.81. Correlations between biweekly FI44 assessments ranged between 0.86 and 0.94 and reliability (intraclass correlation coefficient) was 0.88. The standard error of measurement was 0.05, and the smallest detectable change and upper limits of agreement were 0.13; the latter is larger than previously reported minimal clinically meaningful changes. Both internal consistency and reliability of the FI were good, that is, the FI differentiates well between community-dwelling older adults, which is an important requirement for risk stratification for both group-level oriented research and patient-level clinical purposes. Measurement error, however, was large, suggesting that individual health deteriorations or improvements, cannot be reliably detected for FI changes smaller than 0.13.

Psychometric properties of the Youth Self-rated Insomnia Scale (YSIS) in adolescent psychiatric patients.

The 8-item Youth Self-rated Insomnia Scale (YSIS) was developed to assess insomnia severity in the past month among youths. The YSIS has satisfactory psychometric properties in the general adolescent population. This study examined psychometric properties of the YSIS in a large sample of adolescent psychiatric patients. A total of 536 patients aged 10-19years were consecutively recruited from the outpatient department of Shandong Mental Health Center between December 2021 and March 2022. Patients completed a structured questionnaire consisting of the YSIS scale and questions about sleep duration, nightmares, psychiatric history, depression, psychiatric and sleep medications, and demographics. Patients were diagnosed following the ICD-10 criteria. Of the participants, the mean age was 15.30 years(SD = 1.95), 61.0% were female, 60.9% were diagnosed with mood disorders, 65.7% were on antidepressants, and 49.0% were on anxiolytics or hypnotics. The mean YSIS score was 22.6 (SD = 8.07). Coefficient omega was 0.84. Exploratory factor analysis revealed one factor and two correlated residuals. The YSIS scores were significantly correlated with depression scores (r = 0.68) and significantly increased with sleep onset latency, short sleep duration, nightmare frequency, and sleep medication use. The YSIS demonstrated satisfactory internal consistency reliability, construct validity, and criteria-related validity in adolescent psychiatric patients. The YSIS appears to be a reliable and valid scale for measuring insomnia severity in adolescent psychiatric patients.

Adaptation of Teacher Immunity Scale to Turkish: Validity and Reliability Study

The literature on teacher identity has yet to fully succeed to address the relationship between personal and contextual factors of teacher identity. Therefore, researchers are attempting to come up with constructs that better account for teacher identity. Accordingly, teacher immunity is a new concept that is a construct teachers develop either productively or maladaptively to protect themselves from the ever-increasing stress and challenges in instructional environments. This study aims to adapt the Language Teacher Immunity Questionnaire (Hiver, 2017) to Turkish culture. Research data were collected from a sample of teachers from various branches working in public and private schools (n=357). The scale adaptation process consists of 20 consecutive steps offered by the researchers based on a comprehensive literature review. When linguistic equivalency was ensured, confirmatory factor analysis was performed for construct validity, and internal consistency was tested through McDonald’s Omega coefficients. After some modifications, the fit indices were above acceptable levels. Also, convergent and divergent validity were examined. According to the results, the Teacher Immunity Scale (TIS) in a 6-point Likert-type format consisting of 32 items gathered under seven factors preserved the original factor structure. This study offers a valid and reliable Turkish adapted form of TIS that can be used with teachers from all branches. Teacher immunity is an emerging concept in teacher identity research, and this adapted instrument allows researchers to research the construct in Turkish.

Attitudes towards Digital Educational Technologies Scale for University Students: Development and Validation

Numerous studies of the digitalization of higher education show that university students’ attitudes toward digital educational technologies (DETs) are one of the important psychological factors that can hinder or facilitate the optimal implementation of digital technologies in education. International researchers have developed many tools for diagnosing the attitudes of university students toward various aspects of the digitalization of education; however, until recently, similar scales in Russian have not been developed, which determined the purpose of this present research. The proposed version of the Attitudes towards DETs Scale for University Students (ATDETS-US) includes the cognitive, emotional, and behavioral subscales corresponding components of the attitude according to the ACB Model. The validation sample included 317 (160 females and 157 males) bachelor and master students from different Russian universities. Psychometric testing using Cronbach’s Alpha and McDonald’s Omega coefficients, hierarchical factor analysis, and CFA confirm the high internal consistency, reliability of the ATDETS-US and its subscales, and the good fit of the model. ATDETS-US will be used for obtaining reliable data on the attitudes towards DETs in university students, which should be taken into account when designing programs for their psychological support in the educational process and developing their digital competence.

Cross-Cultural Adaptation and Psychometric Properties of the Swahili Version of the European Organization for Research and Treatment of Cancer (EORTC) QLQ-BR45 among Breast Cancer Patients in Tanzania.

Breast cancer is the most frequent cancer in women in Africa and contributes to premature death and poor quality of life. This study aimed to determine the validity, reliability, and psychometric properties of the Swahili version of EORTC QLQ-BR45 among women with breast cancer in Tanzania. A cross-sectional study design with non-probability convenience sampling was employed. Data were collected in two tertiary hospitals and one national cancer institute; 414 participants completed the EORTC-QLQ-C-30 and EORTC-QLQ-BR45. The reliability of QLQ-BR45 was measured using Cronbach's alpha and McDonald's Omega coefficients. The factor structure of EORTC QLQ-BR45 was assessed using confirmatory factor analysis. The internal consistencies for the five dimensions were all above 0.7 indicating satisfaction, except for systemic therapy side effects with a marginal value of 0.594 and significant correlations between the dimensions of QLQ-C30 and BR45. The final model fit well to the data, with the comparative fit index = 0.953, Tucker-Lewis index = 0.947, root mean square error of approximation = 0.041 (90% CI: 0.035, 0.046), and standardized root mean square residual = 0.072. In conclusion, the QLQ BR45 Swahili version displayed good reliability, validity, and psychometric properties and can be used in Swahili-speaking Sub-Saharan countries.

Validity and Reliability of the Future Decent Work Scale with Turkish Vocational and Technical High School Students

The working conditions of individuals in their workplaces must have human conditions. The characteristics that should be in a decent job are listed as safe working conditions, sufficient free time and rest hours, organizational values that complement family and social values, adequate compensation and access to health services. The aim of this research is to study the validity and reliability of the Future Decent Work Scale on Vocational and Technical Anatolian High School students which measures individuals' perceptions of decent work that they can obtain in the future. Within the scope of the validity and reliability studies of the scale, data were collected from 545 Vocational and Technical Anatolian High School students. In order to test the construct validity of the scale, Confirmatory Factor Analysis (CFA) was used and criterion-related validity was examined. Cronbach Alpha and McDonald's Omega coefficients were calculated for reliability studies. As a result of CFA, it was concluded that the goodness of fit indices of the scale indicated good (GFI=.93, AGFI=.90) and acceptable (χ2/df=3.943, RMSEA=.074, SRMR=.069, CFI=.85) level of fit indices. The Cronbach Alpha internal consistency coefficient was calculated as .77 for the scale. These results show that the scale is a valid and reliable measurement tool on Vocational and Technical Anatolian High School students.

Measurement invariance of the patient health questionnaire-9 depression scale in a nationally representative population-based sample.

The Patient Health Questionnaire-9 (PHQ-9) is widely used to measure the severity of depressive symptoms and to screen for depressive disorder, but its measurement invariance has received little research attention. The aim of this study was to assess the measurement invariance of the PHQ-9 across various sociodemographic and medical-condition groups. The structural validity and internal consistency of the PHQ-9 were also assessed as the prerequisite properties for measurement invariance. This study was conducted using data from the Korea National Health and Nutrition Examination Survey. The included participants comprised 5,347 people older than 19 years. Exploratory graph analysis (EGA) and confirmatory factor analysis (CFA) were performed to determine structural validity, and the omega coefficient () was used to determine internal consistency. Measurement invariance (configural, metric, and scalar invariance) was evaluated using multigroup confirmatory factor analysis (MGCFA). The single structural model of the PHQ-9 that was validated by EGA was also satisfactory with fit indices of χ2 = 770.765 (p < 0.001), CFI = 0.944, SRMR = 0.040, and RMSEA = 0.076 (90% CI = 0.072-0.081). The of the PHQ-9 was 0.812, implying satisfactory internal consistency. The one-factor PHQ-9 had equivalent overall structure, factor loadings, and item intercepts across age groups, suggesting invariance across ages. Partial scalar invariance was demonstrated across sex and marital-status groups. Partial metric and scalar invariance were supported across education groups. Scalar invariance was supported among all of the medical-condition (hypertension, diabetes, cancer, arthritis, asthma, and heart disease) groups. Overall, the measurement invariance of the one-factor PHQ-9 was empirically supported across sociodemographic and medical-condition groups. The PHQ-9 can be reliably used to compare the severity of depressive symptoms across these groups in research and practice.

Psychometric properties of the Career Adapt-Abilities Scale-Short Form: evidence from Chinese elite athletes.

The present study aimed to examine the psychometric properties of the Chinese version of the Career Adapt-Abilities Scale-Short Form (CAAS-SF) among a sample of Chinese elite athletes. A sample of Chinese elite athletes (n = 770) was invited to participate in this study. First, the factor structure of the Chinese version of the CAAS-SF was examined, and six measurement models (CFA, H-CFA, B-CFA, ESEM, H-ESEM, and B-ESEM) were constructed and compared. Second, the internal consistency reliability of the Chinese version of the CAAS-SF was examined. Finally, structural equation modeling (SEM) was employed to assess the nomological validity of the Chinese version of the CAAS-SF. The results showed that the hierarchical ESEM (H-ESEM) model best represented the factor structure of the CAAS-SF among Chinese elite athletes. It suggests that the higher-order factor of career adaptability explains the four distinctive but interrelated specific factors of concern, control, curiosity, and confidence. Cronbach's alpha coefficients (0.84-0.90), composite reliability (0.81-0.96), and coefficient omega hierarchical (0.855-0.94) of the Chinese version of the CAAS-SF were larger than the cutoff values, which suggest satisfactory reliability. The results of the SEM revealed that the higher-order factor of career adaptability was positively associated with career decision self-efficacy (β = 0.676, p < 0.001). This result is consistent with previous findings (r = 0.65, p < 0.01) and provided support for the nomological validity of the CAAS-SF among Chinese elite athletes. The findings of the present study indicated that the Chinese version of the CAAS-SF displayed satisfactory reliability and validity and could be used to assess the career adaptability of Chinese elite athletes. In addition, the total score of the CAAS-SF is suggested to be used in future research and practical works.

Design and validation of the presenteeism scale in nursing

BackgroundThe instruments used to measure presenteeism are all flawed and only incompletely measure the concept of presenteeism in employees of the general population. As a result, the concept of presenteeism is not measured, and in most of these instruments, the population for which the instrument has been developed differs from the nursing population. The present research was conducted to design and validate the instrument for evaluating presenteeism in nursing.MethodsThe present study was part of an exploratory sequential mixed study. In this study, the instrument for measuring the level of presenteeism among nurses was developed and validated based on the results of the qualitative stage. To this end, the instrument’s psychometric properties were investigated using face, content, and construct validity, as well as reliability through internal consistency and stability.ResultsIn this study, an instrument containing 17 items and three dimensions (imperfect cognitive presence, imperfect emotional presence, and imperfect movement presence) with favorable validation characteristics was developed. Therefore, the instrument was able to explain 56.375% of the total variance. Furthermore, Cronbach’s alpha and McDonald’s omega coefficients were 0.881 and 0.815, respectively. The intra-cluster correlation coefficient (ICC) was also reported as 0.972 for the entire instrument, with a 95% confidence interval of 0.941 to 0.987.ConclusionBased this study, it was possible to measure the level of nurses’ presenteeism through an instrument with favorable psychometric properties. This study helps health managers lay the groundwork for designing a system for measuring presenteeism among Iranian nurses using the developed instrument.

Adaptation and validation of the research task distractor scale in Peruvian university students

Unconventional distractions such as electronic devices are stimuli that divert attention during study tasks, especially those related to scientific research exercises in undergraduate education. In the absence of precise instruments to measure this phenomenon, the objective was to adapt and validate the Scale of Distractions in Research Tasks among Peruvian university students. The study is classified as an instrumental cross-sectional design, involving 1,003 university students aged between 18 and 47 years (M = 20.93, SD = 4.30) from three regions of Peru (Coast, Highlands, and Jungle), selected through convenience sampling. Content validity was assessed using Aiken’s V coefficient, internal structure was examined through confirmatory factor analysis, and reliability was measured using the Omega coefficient. The results indicated that the judges positively evaluated the 5 items (V &amp;gt; 0.70), the internal structure confirmed the original model with satisfactory fit indices (χ2 (2) = 5.47, p = 0.187, CFI = 0.998, RMSEA = 0.023, and SRMR = 0.010), and the reliability was acceptable (ω = 0.86). In conclusion, the Peruvian version of the Scale of Distractions in Research Tasks has demonstrated to be a valid and reliable instrument, characterized by its brevity and a unifactorial structure.

Cross-cultural adaptation and psychometric properties of the Italian version of the Orthorexia Nervosa Inventory (ONI)

BackgroundOrthorexia Nervosa (ON) is an emerging clinical condition characterized by a pathological fixation with healthy eating. Recently, the Orthorexia Nervosa Inventory (ONI) has emerged as a promising tool for assessing orthorexic tendencies and behaviours, aiming to overcome the well-established limitations of existing measures for ON. The present study aimed to examine the psychometric properties of the Italian version of the ONI.MethodsA total of 879 participants (Mage = 33.22 years, SD = 9.19; 56.9% females) completed the ONI along with the Düsseldorf Orthorexia Scale (DOS), measures of disordered eating, obsessive-compulsive symptoms (OCD), and psychosocial impairment. To establish the factorial validity of the ONI, a competing measurement modeling approach was employed by comparing standard confirmatory factor analytic (CFA) with exploratory structural equation modeling (ESEM) solutions. Model-based omega coefficients were computed to examine the internal consistency of the scale. Factorial invariance tests across gender were conducted within a multi-group framework.ResultsA three-factor first-order ESEM solution provided the best and most parsimonious representation of the data: χ2(207) = 558.641, p < .001, RMSEA = 0.044 (90% CI 0.040–0.048), CFI = 0.976, TLI = 0.968, SRMR = 0.036. The three latent dimensions, labelled behaviors, emotions, and impairments, showed excellent internal consistency (ω > 0.88). Furthermore, ONI scores were found to be positively correlated with DOS scores, disordered eating, OCD symptoms, and psychosocial impairment, supporting its convergent and criterion validity. Eventually, the ONI was factorially invariant across gender.ConclusionsOverall, the present study provides evidence for the satisfactory psychometric properties of the ONI in the Italian context, endorsing its use in both clinical and research settings.