Coefficient Omega Research Articles

Assessing the Factor Structure and Construct Validity of the Beck Depression Inventory (BDI-II) in a Korean Preschool Teacher Sample

Preschool teachers are at high risk of depression. Therefore, emphasis should be placed on evaluating a valid and reliable instrument to measure depressive symptomatology for this population. One such promising instrument is the Beck Depression Inventory (BDI-II), a 21-item self-report measure designed to assess the presence and severity of depression. Although the tool’s psychometric properties have been analyzed in different samples, they have not been validated with a Korean preschool teacher sample. Hence, this study sought to evaluate the psychometric properties of the Korean version of the BDI-II in a sample of Korean preschool teachers. The study participants comprised 252 Korean preschool teachers (243 women and 9 men) with an average age of 33.5 years (SD = 10.3, range = 21-59). The participants completed the Korean version of the BDI-II online. Confirmatory factor analysis was performed to examine the psychometric properties of the BDI-II. Six models based on the literature were tested, including single-factor, correlated two- and three-factor, and bifactor models. The reliability and validity of the BDI-II were also analyzed. The bifactor model demonstrated the best data fit with an overarching vital general depression factor that coexists with comparatively weak specific cognitive, affective, and somatic factors. Internal consistency, measured using McDonald’s omega coefficients, was adequate in all cases. Using a validated screening instrument such as the BDI-II may allow clinicians to better detect depression among preschool teachers because of its conciseness and satisfactory psychometric properties. Since a bifactor model confirmed the unidimensionality of the BDI-II, the scores of specific factors should not be used in isolation. However, clinical assessment may benefit from its subscales if they are used in conjunction with total scores.

EGame-flow: psychometric properties of the scale in the Mexican context

PurposeThe present study examined the psychometric properties of the EGame- flow scale in a Mexican sample, presenting evidence of construct validity (exploratory factor analysis and confirmatory factor analysis), reliability (Cronbach’s alpha and McDonald’s omega) and discriminant validity (mean variance extracted).Design/methodology/approachParticipants: Of the 255 Mexican participants in the non-probabilistic sample who had previously interacted with the LOST logistics simulator, 166 (65%) were men and 89 (35%) were women; their ages ranged from 22 to 45. The statistical packages SPSS 25, JASP 0.16 and AMOS 23 facilitated the corresponding analyses. First, we calculated the means and standard deviations of the scale items. Next, we performed an exploratory factor analysis to examine the measurement model’s internal structure and a confirmatory factor analysis to confirm the structure proposed in the exploratory factor analysis. To analyze the internal structure of the measurement model so that the estimates were not affected by multivariate normality problems, we utilized the AMOS bootstrap method (with 500 repetitions, 95% CI), the maximum likelihood (MV) estimation method, and the fit indices: X2, p (chi-square and associated likelihood), Tucker–Lewis index (TLI), standardized statistical mean square residual (SRMR), comparative fit index (CFI) and root mean Square error approximation (RMSEA) with its confidence interval, the values of X2 with p < 0.001; TLI, CFI, AGFI = 0.95; RMSEA and SRMR = 0.08 (Byrne, 2016). Finally, we estimated the reliability of the measurement model with Cronbach’s alpha (a), McDonald’s omega (ω) coefficient and the mean variance extracted (VME).FindingsAn exploratory factor analysis with the MV method and obliminal rotation showed a good fit of the data to the model, which aligns with the significance of the Barlette sphericity test (X2 = 8443.2, p < 0.000) and the Kaiser–Meyer-Olkin (KMO) value of 0.94. The indices confirmed the fit of the data to the six-dimensional model for measuring the users' level of enjoyment of online games (X2 = 678.2 gl = 411, p = 0.000; SRMR = 0.05; TLI = 0.95, CFI = 0.95 and RMSEA = 0.05, IC 90% [0.04, 0.05]).Research limitations/implicationsThe self-reporting format of the scale increases the social desirability of the responses, but the sample only collects information from a specific geographic location, so these findings cannot extrapolate to populations with very marked cultural differences. Finally, the study did not measure other validity evidence, such as predictive and concurrent validity, which should be considered in future studies.Practical implicationsFrom a practical perspective, the study offers a measurement scale with fewer items and robust psychometric evidence that ensures the fit of the data to the EGame-flow measurement scale. Further research must continue to learn about the behavior of the EGame-flow scale in different samples that new evidence of psychometric properties continues to appear and that other factors associated with the users' gaming enjoyment experience are analyzed.Originality/valueThe value and originality of the study lie in the type of evidence of psychometric properties that the instrument has and particularly in the style of sample in which the study is carried out, in this case, in the context of Mexico, where there are not enough instruments that measure the flow experience of users.

PSYCHOMETRIC PROPERTIES OF THE KCCQ–12 IN A EUROPEAN COHORT OF PATIENTS WITH HEART FAILURE

Abstract Background Despite medical advances, patients with heart failure continue to suffer from poor quality of life due to worsening symptoms and functional limitations. Therefore, it is important to understand the multidimensional facets of quality of life in these patients. The Kansas City Cardiomyopathy Questionnaire is a commonly used quality of life assessment tool worldwide. However, However, there is still a lack of knowledge about its psychometric properties. Purpose The aim of this study was to investigate the psychometric properties of the KCCQ–12 and its measurement invariance in a cohort of European patients with heart failure. Methods Participants (n=510, median age=72, IQR=18, 58% males) completed the KCCQ–12 alongside measures of clinical psychosocial severity. A confirmatory factor analysis was used to establish factorial validity; internal consistency was determined using the Omega coefficient and the model–based internal consistency coefficient. Zero–order correlations between the KCCQ–12 scores and clinical and psychosocial measures were performed to test convergent validity. Multigroup confirmatory factor analysis was conducted to test measurement invariance across patients with preserved vs reduced ejection fraction. Results Confirmatory factor analysis confirmed a four–factor solution, with the domains of physical limitations, symptom frequency, quality of life, and social interference. Internal consistency was excellent (Omega coefficients ranging from 0.83 and 0.90, and internal consistency index of 0.94). The KCCQ–12 scores significantly correlated with ejection fraction, New York Heart Association class, quality of life, anxiety, depression, symptom burden, and the KCCQ–23 Overall Summary score, which adequately supported the convergent validity of the KCCQ–12. Measurement invariance was confirmed at the partial scalar and strict level. Conclusions These findings support the validity and reliability of the KCCQ–12, both in patients with reduced and preserved ejection fraction. Hence, this version can be confidently used both in research and clinical practice to measure quality of life of heart failure patients.

Psychometric Properties of the Thai Gaming Disorder Test (GDT) and Thai Gaming Disorder Scale for Adolescents (GADIS-A)

ABSTRACT The present study examined psychometric properties of the Gaming Disorder Test (GDT) and Gaming Disorder Scale for Adolescents (GADIS-A), among Thai university students. A convenience sample of university students (n = 612) completed an online survey. . A one-factor structure for GDT, and a two-factor structure for GADIS-A were confirmed . Omega coefficients for both scales were acceptable. . There were positive significant associations between the assessed scales and other related measures indicating convergent validity. Appropriate fit indices were found (across gender and daily time spent gaming supporting measurement invariance. The GDT and GADIS-A are appropriate instruments to assess gaming disorders among Thai university students. .

Bayesian omega coefficient: applications in health sciences

Bayesian omega coefficient: applications in health sciences

Development and evaluation of a food literacy questionnaire for schoolchildren in France

Food literacy is gaining importance in nutrition education programs for children. To date, food literacy assessment tools have been developed in many countries, however, none exist in France. The objectives of this study were to develop a questionnaire and to evaluate its measurement properties among French schoolchildren aged 8–11 years. The questionnaire was developed in three phases: i) item selection (literature review and adaptation or creation of items) and content validity (submission to an expert panel), ii) questionnaire development including a pre-test in a small sample of children (n = 41) and item reduction and dimensionality based on the responses of children who completed the questionnaire in 31 schools between December 2022 and March 2023, and iii) questionnaire evaluation in terms of reliability, validity and acceptability. In total, 1187 responses were included in the analysis. The mean age of the children was 9.6 ± 0.7 years (girls: 51.2%, boys: 48.8%). The development process resulted in a 25-item questionnaire with good acceptability and satisfactory estimated reliability (McDonald omega coefficient = 0.73). Factor evaluation revealed a three-dimensional structure encompassing food and nutrition knowledge, participation in food preparation activities and food habits. To our knowledge, this study was the first to assess food literacy for schoolchildren in France. Our questionnaire can contribute to assess the factors that make food literacy vary, especially regarding socioeconomic variables to target priority populations for nutrition education actions and to describe changes in food literacy scores from a longitudinal perspective.

Validating interRAI Chinese self-reported carer needs (SCaN) assessment and predicting caregiving distress among informal Chinese caregivers of older adults

BackgroundThis study aims to (1) determine the reliability and validity of the interRAI Chinese Self-reported Carer Needs (SCaN) assessment among informal Chinese caregivers of older adults, (2) identify predictors of caregiving distress in Asian regions with long-standing Confucian values of filial piety and family responsibility.MethodsThis cross-sectional study recruited 531 informal Chinese caregivers of older adults in Hong Kong, Shanghai, Taiwan, and Singapore. The scale reliability was examined using Cronbach’s alphas (α) and McDonald’s omega coefficient (ω). The concurrent validity and discriminant validity were assessed using Spearman rank correlations (rho). To examine the predictors of caregiving distress among informal caregivers of older adults, we employed hierarchical linear regression analyses informed by the Model of Carer Stress and Burden and categorized the predictors into six domains.ResultsResults revealed good internal consistency reliability (α = 0.83–0.96) and concurrent validity (rho = 0.45–0.74) of the interRAI Chinese SCaN assessment. Hierarchical linear regression analysis revealed that entering the background factors, primary stressors, secondary stressors, appraisal, and exacerbating factors all significantly enhanced the model’s predictability, indicating that the source of caregiving distress is multidimensional. In the full model, caregivers with longer informal care time, lack of support from family and friends, have unmet needs, experience role overload, have sleep problems, and low IADL functioning are at a higher risk of caregiving distress.ConclusionsThe interRAI Chinese SCaN Assessment was found to be a reliable and valid tool among the Chinese informal caregivers of older adults. It would be useful for determining family caregivers’ strengths, needs, and challenges, and tailoring interventions that address the potentially modifiable factors associated with caregiving distress and maximize support. Healthcare providers working in home and community settings should be aware of the early identification of caregiving distress and routine assessment of their needs and empower them to continue taking care of their needs and providing adequate care to the care recipient.

The Ergonomic Behaviors Evaluation Tool (EBET) based on social cognitive theory for the assembly line workers: development and psychometric assessment

BackgroundErgonomic behaviors play a crucial role in preventing work-related musculoskeletal disorders (WMSDs). To measure these behaviors, this research aimed to develop and evaluate an ergonomic behaviors tool (EBET) based on the Social Cognitive Theory (SCT) among women workers on assembly lines (WwAL).MethodsThe study was conducted from December 2022 to January 2023 with a focus on the psychometric assessment of EBET. Initially, a literature review and interviews were carried out to identify crucial concepts and primary items. The questionnaire’s validity was evaluated using the Content Validity Ratio (CVR) and the Content Validity Index (CVI). To determine the domains of the tool, construct validity was examined by administering the items to 270 eligible women. The reliability of the tool was assessed using McDonald’s Omega coefficient.ResultsFrom a total of 67 primary items, 50 were confirmed. The study demonstrated good validity with CVR = 0.92 and CVI = 0.97, along with reliable results indicated by McDonald’s Omega coefficient of 0.74. The exploratory factor analysis (EFA) revealed ten distinct dimensions: outcome expectations, outcome expectancies, normative beliefs, perceived barriers, social support, observational learning, reinforcement, behavioral skills, self-efficacy, and intention. Together, these dimensions accounted for 66.25% of the variance in the data. Additionally, the confirmatory factor analysis results supported the presence of these ten constructs and demonstrated a satisfactory fit.ConclusionsEBET is a dependable and valid instrument for evaluating the ergonomic behaviors of workers, utilizing the principles of SCT. Researchers can employ EBET to gather data and implement suitable training interventions to enhance ergonomic behavior among WwAL. However, it is crucial to recognize that EBET may not encompass all facets of ergonomic behaviors. Therefore, it is imperative for future research to prioritize the evaluation of EBET’s suitability among diverse worker populations and to consider additional dimensions of ergonomics to ensure its wider applicability and effectiveness.

Transcultural adaptation to Spain of the CDPQOL questionnaire specific for coeliac children.

This study aimed to translate, cross-culturally adapt, and validate the CDPQOL questionnaire, a coeliac disease (CD)-specific paediatric health-related quality of life (HRQoL) instrument (CDPQOL), in Spanish children with CD. The CDPQOL questionnaire has two versions for children aged 8-12 and 13-18. Translation and linguistic validation were performed following an international consensus process. Internal consistency was calculated using Cronbach's alpha and McDonald's omega coefficients, and convergent validity was assessed with average variance extracted (AVE). Confirmatory factor analysis (CFA) and exploratory factor analysis (EFA), when necessary, were carried out to assess the construct validity. A total of 235 children were included. In the 8-12 age group, a change in the distribution of items to a new structure of three dimensions (negative emotions, food feelings and social interaction) was required. In this new model, CFA supported the fit of the model (χ2/gl = 1.79, RMSEA = 0.077 (IC 95% 0.05-0.100), CFI = 0.969, TLI 0.960, SRMR = 0.081) and Cronbach's alpha and McDonald's omega coefficients were > 0.7 in all three dimensions. In the 13-18 age group, CFA showed that all fit indexes were acceptable (χ2/gl = 1.702, RMSEA = 0.102 (IC 95% 0.077-0.127), p < 0.001, CFI = 0.956, TLI = 0.947, SRMR = 0.103) and Cronbach's alpha and McDonald's omega coefficients were > 0.7 in all three dimensions, except for uncertainty dimension. Conclusions: The Spanish version of the CDPQOL questionnaire is a useful instrument to assess quality of life in coeliac children whose native language was Spanish spoken in Spain, with changes in item distribution in the younger age group questionnaire. What is Known: • The first specific questionnaire for coeliac children, Dutch Coeliac Disease Questionnaire (CDDUX), which focuses on diet, was translated into Spanish and validated allowing to evaluate the HRQoL of Spanish coeliac children. • Spanish Children and parents feel the disease had no substantial negative impacts on patient HRQoL using this questionnaire, similar to that observed with other countries. What is New: • The age specific for CD children (CDPQOL) was elaborated in the USA and focuses on other aspects not evaluated by CDDUX such as emotional and social issues related to living with CD. • The CDPQOL was translated into Spanish and validated allowing it to be used to assess Spanish coeliac children's QoL.

A comparison of univariate and meta-analytic structural equation modeling approaches to reliability generalization applied to the Maslach Burnout Inventory.

Reliability is a property of tests scores that varies from sample to sample. One way of generalizing reliability of a test is to perform a meta-analysis on some reliability estimator. In 2011, a reliability generalization meta-analysis on the Maslach Burnout Inventory (MBI) was conducted, concluding that average alpha values for the MBI dimensions ranged from 0.71 to 0.88. In the present study, we aimed to update the average reliability values of the MBI by conducting a literature search from 2010 until now and comparing to statistical procedures of meta-analysis: the Univariate approach, that were used in the previous study, and a novel meta-analytic approach based on structural equation modeling. An estimation of average reliability was done based on 69 independent primary reliability coefficients for the Univariate approach. The average reliability was based on 9 independent studies in the case of the Meta-analytic Structural Equation Modeling (MASEM) approach. Given that MASEM has the additional capability of testing the internal structure of a test, we also fitted several models. The data was well-suited to the bifactor model, revealing the dominance of the general factor over the domain-specific ones. Acceptable overall alpha and omega coefficients were achieved for the two of the MBI dimensions, having depersonalization reliability estimates below recommendations. In general, the MBI can be viewed as a highly interconnected three-factor scale, being its appropriate for research purposes.

Psychometric properties and cultural adaptation of the Polish Version of the Gay Affirmative Practice Scale.

The lesbian, gay, bisexual, and transgender (LGBT) people often face unique medical disparities, including obstacles to accessing adequate and respectful care. The purpose of this study was to test the psychometric properties(internal consistency, reliability, and factor structure) of the Polish-language version of the Gay Affirmative Practice Scale (GAP-PL). The study was conducted over a 6-month period in 2023, from February to June, involving 329 medical students and professionals who evaluated the GAP-PL. Before testing the psychometric properties of the original Gay Affirmative Practice Scale (GAP), it was translated and adapted from the original English language version into the Polish language. Authors then tested the psychometric properties of the tool on a sample of 329 participants. The internal coherence of the questionnaire was tested with the analysis of verifying factors (Confirmatory Factor Analysis). Cronbach alpha and the discriminatory power index were used as internal consistency measures. There were more female than male participants (55.32%). More than 53% of the participants were heterosexual, and the average age of the respondents was ~30 years. The internal consistency of the Polish-language version and its domains was strong with the overall Cronbach's alpha ranges for each subscale domains ranging between 0.936 and 0.949. The McDonald's omega coefficient was 0.963. The GAP-PL has excellent properties of factorial validity and can be used in research and clinical practice in Polish-speaking populations.

Psychometric Properties of the Spanish Version of the Parental Feeding Style Questionnaire.

There are no validated instruments in Spain for measuring parental feeding styles. The aim was to validate the Parental Feeding Styles Questionnaires (PFSQ) in a Spanish sample. A total of 523 mothers of 523 school-children participated. The children had a mean age of 4.4 years (SD = 1.3), with 51% being boys (M = 4.3 years, SD = 1.4) and 49% girls (M = 4.5 years, = SD 1.3). The PFSQ and the Comprehensive General Parenting Styles Questionnaire (CGPQ) were used. A model of four correlated factors was identified: Prompting/encouraging eating, emotional feeding, instrumental feeding, and control over eating. Cronbach's alpha for the subscales ranged from 0.64 to 0.86, and McDonald's Omega coefficient ranged from 0.66 to 0.86. Emotional feeding and prompting/encouraging eating had values above 0.70, control over eating had a value of 0.68 and instrumental feeding had an alpha coefficient of 0.64 and omega coefficient of 0.66. The factor structure was similar to the original and to other adapted versions. The Spanish sample used more control over eating and prompting/encouraging to eat. The adapted PFSQ is a suitable instrument for assessing the feeding styles of Spanish parents.

A Chinese adaptation of the Patient Health Questionnaire for Adolescents (PHQ-A): factor structure and psychometric properties

BackgroundTo examine the factor structure and psychometric properties of the Patient Health Questionnaire for Adolescents (PHQ-A) in Chinese children and adolescents with major depressive disorder (MDD).MethodsA total of 248 MDD patients aged between 12 and 18 years were recruited and evaluated by the Patient Health Questionnaire for Adolescents (PHQ-A), the Center for Epidemiological Survey Depression Scale (CES-D), the Mood and Feelings Questionnaire (MFQ), and the improved Clinical Global Impression Scale, Severity item (iCGI-S). Thirty-one patients were selected randomly to complete the PHQ-A again one week later. Confirmatory factor analysis (CFA) was used to test the construct validity of the scale. Reliability was evaluated by Macdonald Omega coefficient. Pearson correlation coefficient was used to assess the item-total correlation and the correlation of PHQ-A with CES-D and MFQ respectively. Spearman correlation coefficient was used to assess test-retest reliability. The optimal cut-off value, sensitivity, and specificity of the PHQ-A were achieved by estimating the Receiver Operating Characteristics (ROC) curve.ResultsCFA reported adequate loadings for all items, except for item 3. Macdonald Omega coefficient of the PHQ-A was 0.87. The Spearman correlation coefficient of the test-retest reliability was 0.70. The Pearson correlation coefficients of the PHQ-A with CES-D and MFQ were 0.87 and 0.85, respectively (p < 0.01). By taking the iCGI-S as the remission criteria for MDD, the optimal cut-off value, sensitivity and specificity of the PHQ-A were 7, 98.7%, 94.7% respectively.ConclusionThe PHQ-A presented as a unidimensional construct and demonstrated satisfactory reliability and validity among the Chinese children and adolescents with MDD. A cut-off value of 7 was suggested for remission.

Validation of the questionnaire to measure Chilean teachers' perception of school violence and coexistence management (VI+GEC).

In this article, we present the development and validation of a psychometric scale that measures the teacher's perception in the Chilean school system with respect to elements of school violence and coexistence management. The novelty lies in the incorporation of factors that address violence from teachers to students, from students to teachers and coexistence management. A total of 1072 teachers from the Northern, Central, Southern and Metropolitan macro-zones of Chile participated, with ages between 22 and 76 years (M=44.56; SD=10.52) and from 1 to 54 years of work (M=17.14; SD=10.38). 76.3% identify with the female gender and 23.7% with the male gender. Of the teachers, 78.4% worked mainly in the classroom and the rest performed managerial or administrative functions outside the classroom in the school. The school violence and coexistence management questionnaire for teachers (VI+GEC) was used. The validity of the scale was demonstrated by means of Confirmatory Factor Analysis, convergent validity analysis and discriminant validity. Reliability was demonstrated by means of McDonald's omega coefficient in all the factors of the scale. An analysis with Structural Equation Modeling (SEM) found a mean, and statistically significant influence of the perception of coexistence management on the perception of school violence. The findings are discussed in terms of previous research on school violence and coexistence management.

Validity and reliability of anxiety literacy (A-Lit) and its relationship with demographic variables in the Iranian general population.

Anxiety disorder is one of the most common mental disorders. This cross-sectional research aimed to determine anxiety literacy (A-Lit) psychometric properties among the Iranian population in 2022. This research was conducted on 690 people in Iran in 2022. In this study, people were selected by proportional stratified sampling, and the validity and reliability of the A-Lit designed by Griffiths were assessed. Validity of A-Lit was assessed by face validity, content validity, and confirmatory factor analysis. Reliability of A-Lit was evaluated by the McDonald's omega coefficient, Cronbach's alpha coefficient, and test- retest. In analytical sections, the tests of One-way ANOVA, Chi-squared test, and independent samples t-test were used. The rates of S-CVI/Ave and CVR for A-Lit were 0.922 and 0.774, respectively. In confirmatory factor analysis, three items were deleted because the factor loading was less than 0.4, and goodness-of-fit indexes (Some of goodness-of-fit indexes: χ2/df = 4.175, GFI: 0.909, RMSEA = 0.068, PCFI = 0.745, AGFI = 0.883) were confirmed as the final model with 19 items. For all items, the Cronbach's alpha coefficient was 0.832, the McDonald's omega coefficient was 0.835, and the intraclass correlation coefficient was 0.874. According to the results of this study, 1.3% (n = 9) did not answer any questions correctly and 8.4% (n = 58) were able to answer 1-6 questions correctly. Approximately 72% (n = 495) were able to answer 7-12 questions, and eventually only 18.6% (n = 128) were able to answer 13 questions and more. There was a significant relationship between sex, age group, occupation status, marital status, and get information related to mental illness with A-Lit level (p < 0.05). The Persian version of A-Lit was confirmed with 19 items, and this scale is a reliable tool for measuring A-Lit in the general population. The results also showed that a few people have a higher level of anxiety literacy and that educational and intervention programs need to be designed and implemented for the public population.

Psychometric Properties of a Short Academic Motivation Scale (SAMS) in Medical Students.

Background: Medical education represents a complex field of study, influenced by various psychological, demographic, and contextual factors. Academic motivation, essential for educational success, has been linked to critical decisions in medical careers and can be modulated by contextual elements such as socioeconomic and geographical environments. The theory of self-determination has provided a solid framework for understanding the multidimensional nature of motivation. Objective: To evaluate the psychometric properties of a Spanish version of the Short Scale of Academic Motivation among Peruvian medical students. Methods: Using an instrumental design, the factorial structure, reliability, and gender invariance of the SAMS-S were assessed. A confirmatory factor analysis (CFA) was conducted to validate the scale's structure based on seven dimensions. Additionally, reliability was assessed through Cronbach's alpha coefficient and omega coefficient, and gender invariance was determined through multi-group confirmatory factor analysis. Results: The Peruvian version of the SAMS-S showed a good fit in the CFA with satisfactory goodness-of-fit indices. However, challenges in discriminant validity among certain dimensions were detected, suggesting the presence of a second-order factor. The proposed second-order model yielded an adequate fit (χ2 = 198.26, df = 70, CFI = 0.92, TLI = 0.90, RMSEA = 0.08 [90% CI: 0.07-0.1], SRMR = 0.07), validating the factorial structure of the SAMS-S. The scale's reliability and its subscales were within acceptable ranges. Furthermore, the gender invariance of the SAMS-S was confirmed at all levels, from configural to strict. Conclusions: The second-order model of the SAMS-S presents as a valid and reliable tool for measuring academic motivation among medical students in Peru. Its robustness and adaptability make it relevant for future research in similar educational contexts and can serve as a basis for interventions aimed at improving academic motivation in this specific group.

Polish version of the COMQ-12 questionnaire, a new validated tool for the assessment of the quality of life in patients with chronic otitis media.

&lt;b&gt;&lt;br&gt;Introduction:&lt;/b&gt; The COMQ-12 questionnaire is a tool to assess the quality of life in patients with chronic otitis media in many countries. The questionnaire consists of 12 questions: seven relating to the severity of symptoms, two regarding the impact of the disease on lifestyle and work, two concerning the impact on the need for healthcare, and one is a general question. Each question is rated on a scale from 0 to 5.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Aim:&lt;/b&gt; To present the validation process and the final version of the Polish version of the COMQ-12 questionnaire.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Material and methods:&lt;/b&gt; The Polish version of the COMQ-12 questionnaire was prepared based on an independent translation of the English version by three physicians (two otolaryngology specialists and one physician in the process of specialization in otolaryngology). The questionnaire was validated in a study including 60 participants: 30 patients with chronic otitis media and 30 volunteers without a history of middle ear diseases or hearing disorders. Each participant was asked to complete the COMQ-12 questionnaire twice at an interval of 4 weeks apart. The internal consistency, reliability, and construct validity of the questionnaire were analyzed using Cronbach's alpha and McDonald's omega coefficients, Spearman's rho correlation coefficient, and the Mann-Whitney test, respectively.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Results:&lt;/b&gt; High internal consistency, reliability, and construct validity of the Polish version of the COMQ-12 questionnaire were shown in the course of statistical analysis. The overall internal consistency was 0.95 and 0.97 as assessed by Cronbach's alpha and McDonald's omega coefficients, respectively. Spearman's rho correlation coefficient was above 0.89 for each question. Statistically significant differences in the COMQ-12 total scores were obtained between patients with chronic otitis media and the control group.&lt;/br&gt; &lt;b&gt;&lt;br&gt;Conclusions:&lt;/b&gt; The Polish version of the COMQ-12 questionnaire can be a valuable clinical tool for the assessment of the quality of life in patients suffering from chronic otitis media.&lt;/br&gt.

Assessment of the psychometric properties of the italian version of the midwifery student evaluation of practice (MIDSTEP-IT): A validity and reliability study

BackgroundClinical learning is a crucial component of the midwifery education program, necessary to support the acquisition of professional abilities through the integration of theoretical and practical learning experiences. Evaluating Bachelor of Midwifery students’ perception of their clinical learning experiences is important to improve midwifery educational programs. Aimthe objective of this study was the translation, cultural adaptation, and validation of the Midwifery Student Evaluation of Practice (MidSTEP) in a group of Italian midwives’ students. Methods“Translation and Cultural Adaptation of Patient Reported Outcomes Measures - Principles of Good Practice” guidelines were adopted to achieve the MidSTEP Italian version. Exploratory Factor Analysis was performed. Internal consistency for reliability was assessed using Cronbach's alpha reliability coefficient (α) and Omega coefficient (ω), while Intraclass Correlation Coefficients (ICC) were used to determine if the tool was stable over time. FindingsThe Italian version of MidSTEP (MidSTEP-IT) has good internal consistency: considering the Clinical Learning Environment Scale, Cronbach's α was 0.839 (for the “Skill Development” subscale α was equal to 0.739 and for the “Philosophy of Midwifery Practice” subscale α was equal to 0.825) while considering the Midwifery Preceptor Scale, Cronbach's α was 0.920. Factor analysis does not fully reflect the factorial analysis of the original version. ConclusionThe MidSTEP-IT had been proven to be a valid and reliable tool, easy and fast to administer, that could be effectively helpful for investigating and measuring the Italian midwifery students’ perception of their clinical learning experiences, according to the setting and impact of mentors on their professional growth. It is an innovative tool, valuable in both clinical practice and research to highlight the importance of encouraging a supportive clinical learning environment and an efficient preceptorship.

Resilience Scale (RS-14): Psychometric Study in a Population of Young People from Lima and Callao

The Resilience Scale (RS-14) instrument assesses an individual's level of resilience when facing adverse life situations. This study aimed to examine the psychometric properties of the RS-14 in a sample of young adults from Lima and Callao, aged 18 to 29 years old. Initially, a statistical analysis of the items was conducted, revealing satisfactory normality criteria and discriminative capacity. Subsequently, validity evidence was obtained through Confirmatory Factor Analysis (CFA), demonstrating a good fit (χ²/df = 1.47, CFI = .94, TLI = .92, SRMR = .04, and RMSEA = .04). Finally, reliability was assessed using both Alpha and Omega coefficients, yielding values of α = .91 and ω = .92, respectively, considered acceptable. In conclusion, the RS-14 is considered a valid and reliable scale for future research endeavors in this domain.

Psychometric Review of the Smartphone Addiction Scale (EAS - IC) in Peruvian Adolescents

The excessive use of smartphones has raised concerns about their impact on psychological and social well-being. This study developed and validated the Smartphone Addiction Scale (EAS - IC) in Peruvian adolescents. Three dimensions were examined: Smartphone Hobby, Frustration Tolerance, Interpersonal Relationships and Social Perception. A total of 1012 adolescents aged 13 to 17 years were included. Analyses showed that all items met homogeneity and validity criteria. Confirmatory Factor Analysis (CFA) indicated good fit for the original model and for gender groups. However, no overall factor was found, suggesting that the dimensions are independent. The alpha and omega coefficients showed good reliability for all dimensions and sex groups. The scale provides a valid and reliable tool to measure smartphone addiction in Peruvian adolescents, with direct scores and established percentiles. It highlights the importance of addressing this problem in the Peruvian context and adapting measurement tools to better understand its psychological and social implications. This study contributes to the development of instruments adapted to specific cultural contexts, addressing the need to better explore and understand smartphone addiction, especially among adolescents, a population vulnerable to its effects.