Structural Validity Research Articles

The SSIS SEL Brief Scales – Student Form: Examining the Structural Validity of a Portuguese Version

Abstract Background Despite the increased use of social and emotional learning (SEL) programs, empirical research is hindered by lengthy assessment options, difficult to fit into educational contexts. To cover these needs, the Social Skills Improvement System SEL Brief Scales – Student Form (SSIS SELb-S) was developed. Although it has been translated into several languages, a Portuguese version with sound psychometric properties is still missing. Objective This study aimed to develop the Portuguese version (SSIS SELb-Spt) and to examine its psychometric properties. METHODS: After translating the original SSIS SELb-S to Portuguese, the instrument was administered to 200 5th graders, along with self- and hetero-report measures of school well-being and involvement, peer acceptance, and academic achievement. We examined the SSIS SELb-Spt factorial validity and reliability, tested its correlations with external correlates, and examined the instruments’ predictive validity. Results Results supported a three-factor structure of the scale, which included the dimensions of intrapersonal and interpersonal skills, and responsible decision-making. Correlations with external correlates were in the expected direction. Moreover, the scale predicted school involvement and later academic achievement. Conclusion This study seems to corroborate and extend previous knowledge about the validity of SSIS SELb-S, offering validity and reliability evidence on the scale’s three-factor structure.

A new measure of regulatory focus: Preventing measurement error by promoting best validation practices.

The goals of this project were to improve our understanding of chronic regulatory focus constructs and to provide researchers with a measure that adequately assesses the constructs, can distinguish individual differences effectively across the range of the constructs, and is appropriate for use in diverse populations. Employing best practices in construct validation, we developed the International Personality Item Pool Regulatory Focus Scale (IPIP-RFS). Utilizing 14 samples (N = 4867), we established substantive (via expert ratings and regulatory focus literature), structural (via factor analysis, item response theory, and measurement invariance), and external (via convergent, discriminant, and predictive associations) validity. The IPIP-RFS adequately assesses the constructs of chronic promotion focus and prevention focus, can accurately assess individuals along the continua of the constructs, and is suitable for use among populations that vary in gender, race, and age. Individual differences in promotion focus reflect self-regulation and goal pursuit related to cognitive and behavioral exploration and flexibility (i.e., plasticity), whereas individual differences in prevention focus reflect self-regulation and goal pursuit related to motivational and interpersonal steadiness (i.e., stability). Promotion and prevention focus are important elements of personality with broad implications for functioning and outcomes in health and other important domains.

Perception of School Social Bonding (PSSB) Instrument: Structural and Concurrent Validity

AbstractSchool bonding refers to the connections that students have with their schools and with various aspects of their academic environments, with an emphasis on close affective relationships and investment in doing well at school. The Perception of School Social Bonding (PSSB) instrument is a 10-item, self-report instrument with 3 subscales measuring different aspects of student school bonding: attachment; involvement; and belief. The instrument is grounded in Hirschi’s theory of social control and was evaluated for structural and concurrent validity in a sample of 3,507 students from mixed ethnicity, gender, and age groups. The 3-factor structure of the scale was supported; differences across gender and ethnic groups were identified; and some subscale scores related inversely to chronic school absenteeism. The brevity and sensitivity of the PSSB may make it particularly useful as a universal screening measure in multi-tiered systems of support models.

Development and Validation of the Ease of Imagery Questionnaire.

The present series of studies aimed to develop and provide initial validation of the Ease of Imagery Questionnaire (EIQ)-a measure assessing ease of imaging different positive and negative imagery content reflective of valence and engaging or disengaging in adverse situations. Five studies were conducted to collectively examine the questionnaire's factor structure and concurrent validity. Study 1 (N = 336) and Study 2 (N = 207) informed the development of 16 items of the EIQ, with a four-factor structure supported in Studies 3 (N = 219), 4 (N = 135), and 5 (N = 184) using confirmatory factor analysis. Study 3 also supported concurrent validity with significant bivariate correlations (p < .05) with the similar Sport Imagery Ability Questionnaire subscales, while studies 4 and 5 demonstrated criterion validity in the EIQ's prediction of challenge and threat appraisal tendencies, perceived stress, stress mindset, and anxiety and depressive symptoms. Overall, the EIQ demonstrates a replicable four-factor structure and appears to assess ability to image content associated with positive and negative emotions as well as demanding stress-evoking situations.

Validity and Reliability of the Turkish Adaptation of the Assessment of Positive Occupation-15 (APO-15) in Serious Mental Illness.

The concept of positive occupations that enhance physical, mental, and social well-being is a novel idea that integrates positive psychology and occupational therapy. Valid and reliable scales are required to assess positive occupations for well-being in mental health settings. In this regard, the Assessment of Positive Occupation-15 (APO-15) is unique, as it evaluates positive occupations that promote health and well-being. This study aimed to investigate the validity and reliability of and determine the cutoff value of the Turkish version of the APO-15 in individuals with serious mental illness (SMI). The study was conducted with 106 individuals with SMI. The structural validity of the scale items was determined using confirmatory factor analysis, while the reliability of the scale was analyzed with Cronbach's alpha (α) and McDonald's omega (ω) coefficients. The comparative fit index (0.964) and the Tucker-Lewis index (0.955) demonstrated a good fit. Cronbach's alpha coefficients were .826, .814, .707, and .674, and the total scale score was 0.924. McDonald's ω coefficients for the four scale dimensions were 0.832, 0.818, 0.716, and 0.727. The cutoff point of 49.50 for the APO-15 for point sensitivity (0.727) and specificity (0.766) yielded good results. The Turkish version of the APO-15 is an effective and reliable tool for assessing well-being in mental health settings.

Validation of the extended e-health literacy scale: structural validity, construct validity and measurement invariance

BackgroundGiven the rapid proliferation and use of online health resources, many of which may be of dubious quality, there is an increasing need to develop electronic health literacy (e-health literacy) skills among the population of internet users. E-health literacy encompasses the skills and abilities needed to access, understand, validate, evaluate, interpret, and apply online health-related information. Measuring e-health literacy has become crucial for developing targeted interventions, assessing their impact, and producing high-quality research findings that can inform health policy and clinical practice, which can lead to improved health outcomes and potentially reducing health inequalities. The scales need to be valid and reliable so that decisions are based on high-quality data. In this regard, the issue of the measurement invariance of scales across different demographic groups has been neglected. This is critical, as assessments should be valid across different sociodemographic groups to avoid bias when comparing them. The aim of this study was to validate the Extended e-health literacy scale (eHEALS-E) on general population and investigate its structural validity and internal consistency, construct validity in terms of convergent and discriminant validity, and examine its measurement invariance across gender, age, education and social status.MethodsThe data were collected as a part of a national health literacy survey conducted by the Slovenian National Institute of Public Health. For this survey the initial eHEALS-E scale was revised in order to address its limitations and applicability to general population. Based on a nationally representative sample, the final sample for the analysis comprised 1,944 individuals who at least occasionally used one of the various internet services to obtain health-related information. Multiple group confirmatory factor analysis was used to examine the measurement invariance of the scale.ResultsWith some adjustments, the measurement model of the revised 6-dimensional eHEALS-E scale demonstrated a good fit to the data (χ2 = 2508, df = 282, RMSEA = 0.064, SRMR = 0.070, CFI = 0.90). The scale had good internal consistency (alpha = 0.89). Although evidence of the scale’s convergent and discriminant validity was partially provided, the analysis revealed robust measurement invariance across sociodemographic groups.ConclusionsWith a minor limitation, the scale ensures an unbiased e-health literacy assessment across different social groups, which is crucial for interventions that aim to reduce health-related social inequalities. This ensures that the interventions derived from the assessment of reality are equally valid and effective for everyone, regardless of their sociodemographic background.

Reliability and validity of the Personality Disorder Severity ICD-11 (PDS-ICD-11) scale and the Revised Personality Assessment Questionnaire for ICD-11 (PAQ-11R) in a Norwegian community sample.

In the ICD-11, a new model for the diagnosis of personality disorders is included, consisting of an assessment of the severity of personality impairment as well as an optional evaluation of pathological personality traits. This study aimed to examine the reliability, structural validity, and convergent and discriminant validity of the Norwegian versions of the Personality Disorder Severity ICD-11 (PDS-ICD-11) scale for the assessment of personality disorder severity and the Revised Personality Assessment Questionnaire for ICD-11 (PAQ-11R) for the assessment of the ICD-11 pathological personality traits in a Norwegian community sample. The sample consisted of 295 participants (75.9% female) with a mean age of 30.0years (SD = 10.7years). The participants answered the PDS-ICD-11, PAQ-11R, Level of Personality Functioning Scale-Brief Form 2.0 (LPFS-BF 2.0), and the Personality Inventory for DSM-5-Brief Form Plus Modified (PID5BF + M). The Norwegian PDS-ICD-11 showed good reliability. Support for a unidimensional model and a high convergent correlation with the LPFS-BF 2.0 was found. The reliability analysis of the Norwegian PAQ-11R scales yielded mixed findings with suboptimal reliability estimates for the PAQ-11R detachment, disinhibition, and dissociality scales. Analyzing the structure of the PAQ-11R items, four factors emerged (negative affectivity, detachment, disinhibition, and anankastia). The PAQ-11R scales showed good convergent and, overall, adequate discriminant validity with the PID5BF + M scales. The findings support the use of the PDS-ICD-11 for assessing severity in the ICD-11 PD model in Norway. The Norwegian PAQ-11R appears to be a useful screening tool for the ICD-11 PD trait domains.

Psychometric properties of the Knowledge and Attitudes to Mental Health Scales in a Dutch sample (KAMHS-NL): A comprehensive mental health literacy measure in adolescents

BackgroundMental health literacy (MHL) is crucial for early recognition of and coping with mental health problems, and for the use and acceptance of mental health services, leading to better health outcomes, especially in adolescence. The prevalence of mental health problems among adolescents is seen as a major public health concern and MHL is an important factor in facilitating positive mental health outcomes. However, the availability of valid measurement instruments for assessing the multifaceted nature of MHL is limited, hindering the ability to make meaningful comparisons across studies. The Knowledge and Attitudes to Mental Health Scales (KAMHS) is a promising comprehensive instrument for measuring adolescents’ mental health literacy but its psychometric properties have not been explored in any other contexts than the Welsh. The aim of this study was to translate the KAMHS into Dutch, adapt it in this context, and evaluate its psychometric properties.MethodsWe performed a cross-sectional study with Dutch adolescents between the ages 11–16. We translated the KAHMS and assessed its content validity using cognitive interviewing with n = 16 adolescents. Next, n = 406 adolescents were asked to fill in the translated KAMHS-NL and reference scales, on mental health (SDQ and WHO-5), resilience (BRS), and mental health help-seeking behaviors. We assessed construct validity based on a priori hypotheses regarding convergent and divergent correlations between subscales of KAMHS-NL and the reference scales. Finally, we assessed structural validity via confirmatory factor analysis and exploratory structural equation modeling.ResultsThe KAMHS-NL showed good content validity and satisfactory construct validity. In total, 28 of the 48 hypotheses regarding convergent and divergent correlations between the KAMHS and reference scales were confirmed. Contrary to our expectations, weak, but significant associations were found between MHL and resilience. The KAMHS showed an acceptable to good internal consistency (McDonald’s omega ranging from 0.62 to 0.84). Finally, we could generally confirm the postulated structure of the KAMHS-NL in the Dutch sample with a 5-factor solution (RMSEA = 0.033; CFI = 0.96).ConclusionsThe Dutch version of the KAMHS is a valid measure for detecting differences in MHL levels in adolescents. The KAMHS is a promising instrument for assessing MHL in adolescents in a multifaceted manner in other countries which may facilitate rigorous global MHL research. The instrument therefore deserves further validation research in other settings and comparisons across various cultural contexts.

Reliability and validity of the online Pittsburgh sleep quality index in college students from low-income regions.

We aimed to test the reliability and structural validity (also called dimensionality) of the online Pittsburgh Sleep Quality Index among college students from low-income regions. We assessed 195 Brazilian college students from a low-income region (Gini index of 0.56), of whom 117 were reassessed to evaluate the reliability. We collected all data in a self-reported online twice, 2-week apart. We evaluated reliability and structural validity. All questionnaire components showed reliability, correlation coefficient ≥0.49. In the structural validity, the confirmatory analysis showed better global model adjustment for the one-factor (RMSEA = 0.019; SRMR = 0.041; CFI = 0.992; TLI = 0.986) solution compared with two-factor (RMSEA = 0.099; SRMR = 0.070; CFI = 0.764; TLI = 0.619) and three-factor (RMSEA = 0.108; SRMR = 0.066; CFI = 0.763; TLI = 0.548) solutions, respectively. The online questionnaire presents acceptable reliability and structural validity in Brazilian low-income regions.

Cross-cultural adaptation and validation of the caregiver self-efficacy in contributing to patient self-care scale in China

BackgroundCaregiver self-efficacy is crucial in improving patient outcomes and caregiver well-being, but there is a lack of suitable scales to assess this concept within the context of Chinese culture. This study aimed to cross-culturally translate the Caregiver Self-Efficacy in Contributing to Patient Self-Care (CSE-CSC) Scale and evaluate its psychometric properties using classical test theory and item response theory.MethodsThe CSE-CSC scale was adapted using Brislin’s translation model after obtaining authorization from the original author. A multicenter, cross-sectional study was conducted to assess the psychometric properties of this scale. Classical test theory was used to evaluate reliability (internal consistency, test-retest reliability), validity (content validity, structural validity, convergent validity), and floor and ceiling effects. Item response theory was employed to assess the fit of the rating scale model, reliability, item difficulties, and measurement invariance.ResultsThe translation and cultural adaptation process was completed. Classical test theory demonstrated good internal consistency (Cronbach’s α = 0.935) and test-retest reliability (ICC from 0.784 to 0.829, p<0.001). The I-CVI and K* of each item ranged from 0.875 to 1.00 and 0.871 to 1.00. The first-order 2-factor model fit well (χ2/df = 3.71, RMSEA = 0.082, SRMR = 0.032, CFI = 0.973, TLI = 0.60). Convergent validity showed that the CSE-CSC scores had a strong positive correlation with three separate scales of the CC-SC-CII. There was no floor and ceiling effect in this scale. Rasch analysis showed that the CSE-CSC scale demonstrated a good fit to the rating scale model and exhibited excellent reliability (person/item separation index>2, person/item reliability coefficients>0.8). The Wright map showed that item difficulty matched the respondents’ measured abilities. The analysis of differential item functioning (DIF) showed that all items were comparable in gender.ConclusionsThis study indicated that the CSE-CSC scale had good reliability, validity, difficulty degree, and measurement invariance. The CSE-CSC scale can be used to measure caregiver self-efficacy of Chinese patients with multiple chronic conditions.

Development and assessment of a knowledge, attitude, and practice (KAP) questionnaire for genetic counselees with preimplantation genetic testing (PGT) indications

BackgroundPreimplantation genetic testing (PGT) can reduce the risk of familial genetic diseases, chromosome abnormalities, and recurrent abortions. It is unclear whether genetic counselees with PGT indications understand and accept the implications of PGT. A well-developed and validated tool is needed to evaluate the knowledge, attitude, and practice (KAP) levels of genetic counselees with PGT indications. The purpose of this study was to develop and validate a PGT KAP questionnaire (PGT-KAP-Q) for genetic counselees with PGT indications. MethodsFirst, we established an item pool based on a literature review and qualitative interviews. Second, we developed the PGT-KAP-Q using the Delphi method. Third, we evaluated the quality of the questionnaire using item analysis and psychometric evaluation. The item analysis included extreme value comparison, application of the correlation and Cronbach's alpha (α) coefficient methods, and factor analysis. We also evaluated the content and structural validity of the questionnaire, as well as the internal consistency, test–retest reliability, and split-half reliability. FindingsAfter the literature review and interviews, and based on three rounds of expert consultations, we formed a 43-item questionnaire. In the validity analysis, the item's content validity index (I-CVI) and the average scale level CVI (S-CVI/Ave) values (>0.78 and >0.95, respectively) confirmed the questionnaire's content validity. Exploratory factor analysis showed that all 43 items had strong factor loadings (>0.4), and the three factors of the PGT-KAP-Q explained 51.97 % of the total variance. The Cronbach's α coefficient for the questionnaire was 0.95 (p < 0.05), the split-half reliability was 0.76 (p < 0.05) and the test–retest reliability coefficient was 0.78 (p < 0.05). InterpretationThe 43-item PGT-KAP-Q for genetic counselees with PGT indications is reliable and valid. It contains a moderate number of items, is easy for patients to understand and accept, and can be used for clinical research and applications.

Measurement Properties of Two Questionnaires Assessing Fear-Avoidance in Patients With Chronic Low Back Pain.

The Fear-Avoidance Components Scale (FACS) and the Fear of Daily Activities Questionnaire (FDAQ) assess fear-avoidance model components. However, the questionnaires are not available in Brazilian Portuguese. This study aimed to translate the original English FACS and FDAQ into Brazilian (Br) Portuguese and assess their measurement properties in patients with Chronic Low Back Pain (CLBP). One hundred thirty volunteers with CLBP participated in this study. Structural validity, internal consistency, test-retest reliability, and hypothesis testing for construct validity were analyzed. Results indicated a 2-factor solution for the FACS-Br, while the FDAQ-Br had a one-factor solution. Internal consistency showed acceptable Cronbach's alpha (alpha >.8). Suitable reliability was found for the FDAQ-Br (Intraclass Correlation Coefficient [ICC] = .98). For both FACS-Br factors, suitable reliability was found as well (ICC = .95 and .94). Hypothesis testing for construct validity confirmed more than 75% of the hypotheses proposed a priori for the FACS maladaptive pain/movement-related beliefs domain and the FDAQ-Br. In conclusion, the FACS-Br and FDAQ-Br demonstrated acceptable reliability, internal consistency, and structural validity measurement properties and their correlation (r < .50) suggests that the tools are not interchangeable measures.

A longitudinal examination of the measurement properties and invariance of the Sleep Condition Indicator in Chinese healthcare students

BackgroundThe Sleep Condition Indicator (SCI), an insomnia measurement tool based on the updated Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria with sound psychometric properties when applied in various populations, was evaluated here among healthcare students longitudinally, to demonstrate its measurement properties and invariance in this particularly high-risk population.MethodsHealthcare students of a Chinese university were recruited into this two-wave longitudinal study, completing the simplified Chinese version of the SCI (SCI-SC), Chinese Regularity, Satisfaction, Alertness, Timing, Efficiency, Duration (RU_SATED-C) scale, Chinese Patient Health Questionnaire-4 (PHQ-4-C), and sociodemographic variables questionnaire (Q-SV) between September and November 2022. Structural validity, measurement invariance (MI), convergent and discriminant validity, internal consistency, and test–retest reliability of the SCI-SC were examined. Subgroups of gender, age, home location, part-time job, physical exercise, and stress-coping strategy were surveyed twice to test cross-sectional and longitudinal MI.ResultsWe identified 343 valid responses (62.9% female, mean age = 19.650 ± 1.414 years) with a time interval of seven days. The two-factor structure was considered satisfactory (comparative fit index = 0.953–0.989, Tucker–Lewis index = 0.931–0.984, root means square error of approximation = 0.040–0.092, standardized root mean square residual = 0.039–0.054), which mostly endorsed strict invariance except for part-time job subgroups, hence establishing longitudinal invariance. The SCI-SC presented acceptable convergent validity with the RU_SATED-C scale (r ≥ 0.500), discriminant validity with the PHQ-4-C (0.300 ≤ r < 0.500), internal consistency (Cronbach’s alpha = 0.811–0.835, McDonald’s omega = 0.805–0.832), and test–retest reliability (intraclass correlation coefficient = 0.829).ConclusionThe SCI-SC is an appropriate screening instrument available for assessing insomnia symptoms among healthcare students, and the promising measurement properties provide additional evidence about validity and reliability for detecting insomnia in healthcare students.

Longitudinal measurement invariance and psychometric properties of the Patient Health Questionnaire-Four in China

BackgroundDepression and anxiety symptoms among medical students are often a concern. The Patient Health Questionnaire-Four (PHQ-4), an important tool for depression and anxiety screening, is commonly used and easy to administer. This study aimed to assess and update the longitudinal measurement invariance and psychometric properties of the simplified Chinese version.MethodsA three-wave longitudinal survey was conducted among healthcare students using the PHQ-4. Structural validity was based on one-factor, two-factor, and second-order factor models, construct validity was based on the Self-Rated Health Questionnaire (SRHQ), Sleep Quality Questionnaire (SQQ), and Rosenberg Self-Esteem Scale (RSES), and longitudinal measurement invariance (LMI), internal consistency, and test–retest reliability were based on structural consistency across three time points.ResultsThe results of the confirmatory factor analysis indicated that two-factor model was the best fit, and LMI was supported at three time points. Inter-factor, factor-total, and construct validity correlations of the PHQ-4 were acceptable. Additionally, Cronbach’s alpha, McDonald’s omega, and the intraclass correlation coefficient demonstrated acceptable/moderate to excellent reliability of the PHQ-4.ConclusionsThis study adds new longitudinal evidence that the Chinese version of the PHQ-4 has promising LMI and psychometric properties. Such data lends confidence to the routine and the expanded use of the PHQ-4 for routine screening of depression and anxiety in Chinese healthcare students.

Development and experimental validation of analytical structures of some simplest fuzzy PI/PD controllers using Bounded Sum aggregation

In this work, utilization of Bounded Sum (BS) as an aggregation operator has been explored in the modeling of the simplest fuzzy two-term (PI/PD) controllers. Analytical structures of eight distinct fuzzy two-term controllers utilizing Larsen Product (LP) or Mamdani Minimum (MM) inference and Center of Area (CoA) defuzzification have been derived. In addition to modeling, analysis of controllers for their properties is conducted. Simulation studies are carried out on two nonlinear dynamic systems to show the effectiveness of the controllers proposed in this work. Apart from this, a real-time experimentation has also been conducted to test the applicability of the proposed controllers.

Supplemental Material for The Latinx Acculturation Index (LAI): Reexamining the Factor Structure and Convergent Validity of an Updated Acculturation Scale

Supplemental Material for The Latinx Acculturation Index (LAI): Reexamining the Factor Structure and Convergent Validity of an Updated Acculturation Scale

Schizophrenia Quality of Life Scale and Schizophrenia Quality of Life Scale Revision 4: A Systematic Review of Measurement Properties.

Schizophrenia is a severe mental disorder that has a significant impact on quality of life (QOL). Measuring QOL can offer insights into treatment efficacy and areas of intervention, highlighting the importance of valid tools assessing QOL in people with schizophrenia. We employed the COSMIN systematic review guideline to assess the psychometric properties of the schizophrenia quality of life scale (SQLS) and its 4th revision, the schizophrenia quality of life scale revision 4 (SQLS-R4), as patient-reported outcome measures (PROMs). The search yielded 455 papers, 16 were included, 7 for the SQLS and 9 for the SQLS-R4. Both scales demonstrated good results in risk of bias assessment for internal consistency and convergent validity, the SQLS-R4 additionally for known-groups validity. For the SQLS, PROM development, structural validity, and reliability were suboptimal. The SQLS-R4 showed suboptimality regarding structural validity and reliability and inadequacy for cross-cultural validity and responsiveness. The updated criteria for good measurement properties indicated good convergent validity for the SQLS and good internal consistency, reliability, and convergent validity for the SQLS-R4. The SQLS showed suboptimal results for reliability and known-groups validity, while the SQLS-R4 demonstrated suboptimality in structural validity and known-groups validity. The SQLS had indeterminate structural validity and internal consistency; the SQLS-R4 showed indeterminate responsiveness, and insufficient cross-cultural validity. When using the updated GRADE approach of the COSMIN group, both scales received a very low grade. The SQLS and SQLS-R4 hold the potential for recommendation in rating QOL. Identified weaknesses necessitate further validations.

Differential item functioning of the revised Multigroup Ethnic Identity Measure (MEIM-R) in racially and income diverse youth with type 1 diabetes.

Racially minoritized youth with T1D are made vulnerable to disproportionately adverse health outcomes compared to White peers due to enduring systems of oppression. Thus, understanding modifiable psychosocial factors associated with diabetes-related outcomes in racially minoritized youth may help to buffer deleterious effects of racism. One factor meriting exploration is racial-ethnic identity. There is currently limited research on measures fit to assess ethnic identity in youth with chronic illnesses. This study's purpose is to examine the factor structure, reliability, and validity of the revised Multigroup Ethnic Identity Measure (MEIM-R) in a racially- and income-diverse sample of youth with T1D across sociodemographic and illness-related proxies for one's positionality in oppressive systems. As part of a larger study examining resilience, 142 youth with T1D ages 12-18 (Mage = 14.66, SDage = 1.62, 55.6% Black/African-American, 44.4% White) completed the MEIM-R and various psychosocial measures. HbA1c levels and illness duration were extracted from medical records and caregivers reported income information. Confirmatory factor analyses compared the structural validity of competing MEIM-R models, and uniform and non-uniform differential item functioning (DIF) was explored across sociodemographic and illness-related factors. While a bifactor structure was supported, the MEIM-R was found to exhibit DIF by race and gender on multiple MEIM-R items and did not demonstrate linear bivariate relations with other psychosocial factors. Since different MEIM-R item response patterns were observed across racial/ethnic and gender groups, caution is warranted in using this measure in racially and gender diverse youth with T1D.

Validity and Reliability of the 21st-Century Skills Scale.

Background Purpose: This study was carried out to assess the validity and reliability of the Turkish version of the 21st-Century Skills Scale in Nursing Students. Methods: It is a methodological type of research. In the validity study of the scale, language validity, content validity, and structure validity were examined. Internal consistency analysis was performed in the reliability study. Results: According to the exploratory factor analysis, the total variance explained by the eight-factor structure was calculated as 57.15%. Items 63, 62, 60, and 15 were removed from the scale, as they did not contribute to any factor. Confirmatory factor analysis showed that the model was statistically significant and valid (χ2 /df = 2.255). Conclusions: The results of this research indicate that the 21st-Century Skills Scale is a valid scale with 8 sub-dimensions and 59 items in Turkish society and can be used reliably to determine the 21st-century skills of nursing students.

Systematic comparison of resilience scales using retrospective reports: A practical case study using South African data

The availability of different scales measuring similar constructs challenges scientists and practitioners when it comes to choosing the most appropriate instrument to use. As a result, systematic comparison frameworks have been developed to guide such decisions. The Consensus-based Standard for the Selection of Health Measurement Instruments (COSMIN) is one example of such a framework to examine the quality of psychometric studies. This article aimed, firstly, to explore the psychometric characteristics of resilience measures used in the South African Navy (SAN), in that context. Secondly, it aimed to illustrate the application of the COSMIN guide for comparing psychometric scales and employing data from the aforementioned resilience measures, as a practical case study. The study drew on both published and unpublished data from seven SAN samples, using eight psychometric scales associated with resilience. It assessed structural validity, construct validity, internal reliability and predictive ability. The outcomes were tabulated, and the COSMIN criteria were applied to each data point. All eight scales provided some degree of evidence of validity. However, it was at times difficult to differentiate between the scales when using the COSMIN guidelines. In such cases, more nuanced criteria were necessary to demonstrate more clearly the differences between the psychometric characteristics of the scales and ease in subsequent decision-making.Contribution: This article illustrated the application of COSMIN guidelines to systematically compare the quality of psychometric study outcomes on local South African data. It further offered evidence of validity for a range of resilience-related measures in a South African context.