Measurement Invariance Testing Research Articles

The Fear of COVID-19 Scale: Psychometric properties and measurement invariance across 10 months

The coronavirus disease 2019 (COVID-19) has led to various negative consequences including fear. The Fear of COVID-19 Scale (FCV-19S) has been widely used in diverse cultures, but no study has ever investigated its longitudinal measurement invariance and predictive validity. Therefore, we examined its longitudinal measurement invariance and predictive validity over 10 months. A sample of Chinese undergraduates (N = 682; first wave 842; 682 second wave) completed the FCV-19S as well as measures assessing depression, anxiety, and stress. Exploratory and confirmatory factor analyses were conducted along with measurement invariance testing. The results showed that the bifactor model fitted well, and significantly predicted stress and anxiety, but not depression. The FCV-19S demonstrated partial measurement invariance (i.e. configural and metric invariances) across time. These findings suggest that the Chinese version of FCV-19S is a reliable tool and could be used in evaluating the severity of fear of COVID-19 among Chinese young adults.

Examining measurement invariance of a managerial coaching scale across traditional and virtual employee groups: implications for expanding managerial coaching research

ABSTRACT Managers and human resource development (HRD) professionals are increasingly interacting with employees who work remotely and on-site at the office. These workers also span across multiple generations, each of which is unique in their needs for growth, learning, development, performance improvement, and fulfiling their career aspirations. Managerial coaching is a well-established approach that can develop, support, and improve work-related outcomes for employees. Yet, studies focusing on managerial coaching in virtual contexts are limited. To advance research on managerial coaching in virtual contexts, it is important to use rigorously tested and psychometrically verified scales. Therefore, the purpose of this study was to test measurement invariance and assess latent mean differences between virtual and traditional groups with data collected with one of the most widely used managerial coaching instruments. Data were obtained via MTurk in this cross-sectional, multi-survey design. Methodologically this study is unique in HRD because groups were equated with Propensity Score Matching before data analysis. Results indicate full scalar invariance between groups. Furthermore, traditional employees perceived that their managers exhibited more coaching behaviours than those perceived by virtual employees. Findings from this study provide support for the psychometric properties of this scale for these groups. Implications for research and practice and future research directions are discussed.

Psychometric properties and invariance of the Police Stress Questionnaire in the Romanian context

This research evaluates the psychometric properties of the Romanian version of the Police Stress Questionnaire (PSQ), featuring operational and organizational stress scales for police officers. We conducted three studies to test the reliability and validity of this questionnaire. The first study (N = 744) aimed at adapting and validating the Romanian version on the specific population. Confirmatory factor analysis of our two-factor model, each with 20 items grouped in a second-order factor, showed the good value of the fit indices: χ²(738) = 1420.11, p < .001; CFI = 0.992; TLI = 0.992; RMSEA = 0.035 [90% CI 0.033, 0.038]; SRMR = 0.059. Subsequently, we tested measurement invariance, demonstrating that the Romanian version of this questionnaire measures workplace stress (including operational and organizational stress factors) independently of the work environment (police officers vs. correctional officers). The second study (N = 394) confirmed PSQ’s convergent validity through positive correlations with stress perception, burnout, mental health complaints, and psychological distress and its discriminant validity through negative correlations with job satisfaction and work engagement. The third study tested the longitudinal invariance of the stress questionnaire for police (N = 317). The findings suggest that the PSQ is a reliable and valid tool, highlighting its significant impact on the well-being of Romanian police officers by facilitating stress management interventions through baseline and ongoing stress assessment. Future research should longitudinally assess police stress, incorporating multi-source data and diverse units, as well as exploring the impact of socio-demographic aspects for broader insights.

Psychometric properties of the Chinese perceptions of inclusion questionnaire teacher version for pupils with intellectual and developmental disabilities in inclusive classrooms

Objectives Emotional well-being, social inclusion, and academic self-concept are considered important factors for students’ successful inclusion in school. The Perceptions of Inclusion Questionnaire (PIQ) is a short and well-structured tool for measuring these factors, and was successfully validated in some countries. However, the Chinese PIQ teacher version has not yet been verified. This study investigates the psychometric properties of the Chinese PIQ teacher version for students with intellectual and developmental disabilities (IDD). Methods A total of 374 teachers of students with IDD in grades 1 to 6 from inclusive primary schools in China were recruited. The study examines this questionnaire’s factor structure, internal consistency reliability, and measurement invariance across genders, grades, and disability levels. Results The study confirmed the three-factor structure of the Chinese PIQ teacher version for students with IDD. The tool also showed good internal consistency and passed measurement invariance tests for gender, grade, and disability level. Conclusions The Chinese PIQ teacher version is reliable and valid, and shows strict measurement invariance across genders, grades, and disability levels in students with IDD. And it can be used to compare means across genders, grades, disability levels.

The eTIMSS and TIMSS Measurement Invariance Study: Multigroup Factor Analyses and Differential Item Functioning Analyses with the 2019 Cycle

In this study, measurement invariance and differential item functioning (DIF) studies of the TIMSS 2019 4th and 8th-grade mathematics and science achievement tests were conducted for the country groups participating in both TIMMS and eTIMMS. The study sample consisted of 9560 responders of the first booklet of the 2019 cycle. Multiple Group Confirmatory Factor Analysis (MGCFA) was utilized to test measurement invariance, and Mantel-Haenszel (MH), Logistic Regression (LR), and SIBTEST were used for the DIF analyses. The measurement invariance results indicated strict invariance between groups for all subtests which included 111 items in total. In the DIF analyses, for the 4th and 8th-grade mathematics subtests, only three items showed moderate DIF with MH, and four items showed DIF with SIBTEST. For the 4th-grade science subtest, one item showed moderate DIF with both MH and SIBTEST. However, in the 8th-grade science subtest, no items showed DIF with MH and LR methods, while four items showed moderate DIF with SIBTEST. Overall, MH and SIBTEST techniques were in agreement, whereas LR method produced inconsistent results and showed disagreement with these two methods. The results of the measurement invariance analysis and the LR method were consistent and indicated equivalency of TIMMS and e-TIMMS scores.

Spanish Adaptation of the D70 – The Dark Core of Personality in Spanish-Speaking Countries

Abstract: Socially aversive (“dark”) personality traits (e.g., Psychopathy, Narcissism, Machiavellianism, etc.) share many features which led Moshagen et al. (2018) to conceptualize D, the common core between them. This work aims to establish internal structure evidence for the validation of the Spanish version of its measure (D70) and to demonstrate measurement invariance across sex and country based on a total of 12,356 participants from six countries (Spain, Mexico, Argentina, Colombia, Chile, Peru). Item analysis, reliability, and confirmatory factor analysis following a bifactor structure were performed in each sample in order to assess the psychometric properties of the test, following tests of measurement invariance regarding sex and country. Results showed that the Spanish version of the D70 is an essentially unidimensional and reliable measure, and further supported invariance across sex and countries. This gives cross-cultural researchers a new tool for studying the common core of dark personality in Spanish-speaking countries, and the applied psychologist the possibility to assess socially aversive personalities from the dark factor model.

Validity of a common measure of intimate partner violence perpetration: Impact on study inference in trials in low- and middle-income countries

BackgroundIn lower-and middle-income countries (LMICs), studies of interventions to reduce intimate partner violence (IPV) perpetration are expanding yet measurement equivalence of the construct has not been established. We assessed the measurement equivalence of physical and sexual IPV perpetration used in recent trials in LMICs and tested the impact of non-invariance on trial inference. MethodsWith data from three recent intervention trials among men (sample size 505–1537 across studies), we calculated tetrachoric correlations among items and used multiple-group confirmatory factor analysis to assess invariance across arms and over time. We also assessed treatment effects adjusting for covariate imbalance and using inverse probability to treatment weights to assess concordance of invariant measures with published results, where warranted. Findings.The average correlation among items was high and increased over time with several items in two studies showing correlations ≥0.85 at endline. Increases in correlation for physical IPV were concentrated in the treatment arm in two of the studies. The increase in correlation in sexual IPV differed by arm across studies. Across all studies, a correlated two-factor solution was the best fitting model according to the EFAs and CFAs. One study demonstrated measurement invariance across arms and over time. In two of the studies, longitudinal measurement non-invariance was detected in the intervention arms. In post hoc testing, one study attained invariance with a one-factor model and study inference was concordant with published findings. The other study did not attain even partial invariance. ConclusionCommon measures of physical and sexual IPV perpetration cannot be used for valid effect estimation without further refinement. The study highlights the need for an expanded item set, content validity assessments, further measurement invariance testing, and then consistent use of the item sets in future intervention trials to support accurate inference on the effectiveness of IPV perpetration prevention interventions.

The Social Self-Efficacy Scale for Spanish and Portuguese (13–18-Year-Olds) Adolescents: Psychometric Properties and Measurement Invariance

Introduction: Social self-efficacy refers to peoples’ beliefs about their ability to establish effective social relationships. During adolescence, it has been related to positive social relationships, skills to cope with adverse experiences, and health. While prior research has focused on the general dimension of self-efficacy, this study aims to examine the reliability and validity of the subscale social self-efficacy in Spanish and Portuguese adolescents across gender, age, and country. Method: The sample, selected from the 2018 Health Behaviour in School-aged Children (HBSC) study, was composed of 20,691 13–18-year-old adolescents from Spain and Portugal (48.2% boys and 51.8% girls). The scale’s reliability and internal and external validity were examined systemically across sex, age, and country, as well as testing measurement invariance according to these variables. Results: Data showed adequate evidence of reliability ( α = 0.85), as well as internal and external validity, thus demonstrating the scale’s stability and applicability in similar research contexts. Conclusions: Social self-efficacy fosters individual and social well-being in youth, as well as healthy and positive development. Use of this subscale in evaluation and intervention programs could further our understanding about different dimensions of adolescent development.

Measurement invariance of the Child Behavior Checklist (CBCL) across race/ethnicity and sex in the Adolescent Brain and Cognitive Development (ABCD) study.

There are numerous studies examining differences in the experience of disorders and symptoms of psychopathology in adolescents across racial or ethnic groups and sex. Though there is substantial research exploring potential factors that may influence these differences, few studies have considered the potential contribution of measurement properties to these differences. Therefore, this study examined whether there are differences across racial or ethnic groups and sex in the measurement of psychopathology, assessed in mother-reported behavior of 9-11 year old youth from the Adolescent Brain Cognitive Development study sample using updated Child Behavior Checklist scales (CBCL; Achenbach & Rescorla, 2001). Tests of measurement invariance of the CBCL utilized the higher order factor structure identified by Michelini et al. (2019) using this same Adolescent Brain Cognitive Development cohort. The dimensions include internalizing, somatoform, detachment, externalizing, and neurodevelopmental problems. The configural model had a good-to-excellent fit on all subscales of the CBCL across racial or ethnic groups and sex. The metric and scalar models fit just as well as the configural models, indicating that the scales are measuring the same constructs across racial or ethnic groups and sex and are not influenced by measurement properties of items on the CBCL, although some high-severity response options were not endorsed for youth in all racial or ethnic groups. These findings support the use of the CBCL in research examining psychopathology in racially or ethnically diverse samples of youth. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Psychometric properties of the Children’s Revised Impact of Event Scale (CRIES-8) among refugee adolescents from Afghanistan, Syria, and Somalia

ABSTRACT Background: High levels of post-traumatic stress are well documented among refugees. Yet, refugee adolescents display high heterogeneity in their type of trauma and symptom levels. Objective: Following the recurrent plea for validated trauma screening tools, this study investigated the psychometric properties of the Children’s Revised Impact of Event Scale (CRIES-8) among refugee adolescents from Afghanistan (n = 148), Syria (n = 234), and Somalia (n = 175) living in Europe. Method: The model fit for the confirmatory factor structures was tested, as well as measurement invariance between the three groups. The robustness of results was evaluated by testing measurement invariance between recently arrived and settled adolescents, and between different response labelling options. Reliability (α, ω, and ordinal α), criterion validity, and prevalence estimates were calculated. Results: The intrusion subscale showed a better stable model fit than the avoidance subscale, but the two-factor structure was mainly supported. Configural measurement invariance was achieved between Afghan and Somali adolescents, and strong measurement invariance between Syrian and Somali adolescents. The results were robust considering the time living in the host country and response labelling styles. Reliability was low among Afghan and Syrian adolescents (.717−.856), whereas it was higher among Somali adolescents (.831−.887). The total score had medium-sized correlations with emotional problems (.303−.418) and low correlations with hyperactivity (.077−.155). There were statistically significant differences in symptom prevalence: Afghan adolescents had higher prevalence (55.5%) than Syrian (42.8%) and Somali (37%) adolescents, and unaccompanied refugee minors had higher symptom prevalence (63.5%) than accompanied adolescents (40.7%). Conclusions: This study mostly supports the use of the CRIES-8 among adolescents from Afghanistan, Syria, and Somalia, and even comparative analyses of group means. Variation in reliability estimates, however, makes diagnostic predictions difficult, as the risk of misclassification is high.

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.

An Initial Validation of Transformative Social and Emotional Learning (SEL) Competencies Scale Among Asian American Pacific Islander (AAPI) Teachers

Although transformative social and emotional learning (SEL) has been recognized as a compelling concept to advance SEL practices toward equitable outcomes for both students and adults in schools, psychometrically and theoretically sound measurement tools facilitating the implementation of transformative SEL practices are still lacking. To address this research gap, we conducted the initial validation of a teacher self-reflection scale initially developed by Collaborative for Academic, Social, and Emotional Learning (CASEL) to assess teachers’ perception of their social and emotional competencies in transformative SEL practices among a sample of 249 Asian American and Pacific Islander (AAPI) teachers in the U.S. Results of exploratory confirmatory factor analyses suggested that a 22-item version of the Transformative Social and Emotional Learning Competencies Scale (TSELCS-22) was best supported by a second-order model with one second-order factor of overall social and emotional competencies and five first-order factors. The measurement invariance test indicated that the factor structure of the current scale was consistent across genders. Correlation analyses showed that teachers’ self-reported social and emotional competencies based on TSELCS-22 generally had positive correlations with teachers’ subjective well-being. TSELCS-22’s practical implications in supporting the transformative SEL practices for AAPI teachers and teachers and students from other diverse backgrounds were discussed. Impact Statement This study is the first validation study of the Transformative Social-Emotional Learning Competencies Scale among Asian American and Pacific Islanders (AAPI) teachers. In alignment with CASEL’s transformative social and emotional learning (TSEL) framework, it provides the initial empirical evidence for a self-reported assessment tool to understand and support transformative SEL practices among teachers and to improve teacher well-being and workforce, particularly for those from racial/ethnic minoritized backgrounds.

Validation and Measurement Invariance of the German and Spanish Gender Bias Scale for Women Leaders

AbstractGender bias still appears to contribute significantly to the gender disparity observed in upper leadership positions. The present study presents the translation, modification, and validation of the Gender Bias Scale for Women Leaders (GBSWL, Diehl et al., 2020) into German and Spanish. Using data from four samples of full-time employed women from Germany and Spain with and without leadership responsibility (N = 870), we conducted confirmatory factor analyses to establish factorial validity, tested measurement invariance across the different job levels and countries, and tested construct validity. Our results indicate that the original factor structure does not hold in Germany and Spain. Therefore, utilizing the German leader sample as a construction sample, we modified the factor structure and validated the modified version using the remaining three samples. The modified version demonstrated good model fit, had metric measurement invariance across all samples, and resulted in a correlational pattern consistent with theory and the original study. Overall, results suggest that the German and Spanish versions of the GBSWL are reliable and valid instruments that scholars and practitioners can use to advance theory, research, and human resource practice in Germany and Spain.

Validity Evidence for an Observational Fidelity Measure to Inform Scale-Up of Evidence-Based Interventions.

As evidence-based interventions are scaled, fidelity of implementation, and thus effectiveness, often wanes. Validated fidelity measures can improve researchers' ability to attribute outcomes to the intervention and help practitioners feel more confident in implementing the intervention as intended. We aim to provide a model for the validation of fidelity observation protocols to guide future research studying evidence-based interventions scaled-up under real-world conditions. We describe a process to build evidence of validity for items within the Session Review Form, an observational tool measuring fidelity to interactive drug prevention programs such as the Botvin LifeSkills Training program. Following Kane's (2006) assumptions framework requiring that validity evidence be built across four areas (scoring, generalizability, extrapolation, and decision), confirmatory factor analysis supported the hypothesized two-factor structure measuring quality of delivery (seven items assessing how well the material is implemented) and participant responsiveness (three items evaluating how well the intervention is received), and measurement invariance tests suggested the structure held across grade level and schools serving different student populations. These findings provide some evidence supporting the extrapolation assumption, though additional research is warranted since a more complete overall depiction of the validity argument is needed to evaluate fidelity measures.

Polish Adaptation of the Coparenting Relationship Scale

Abstract: The Coparenting Relationship Scale (CRS) is a 35-item self-report measure used to assess subjective evaluation of the relationship between parents. Developed and applied in the United States, it was translated and adapted in other countries. The article presents a Polish adaptation of the CRS. The study included 802 respondents (514 mothers, 288 fathers). In comparison to the original 7-factor structure of the original CRS, in our case, we excluded the division of labor factor and achieved satisfactory goodness-of-fit criteria upon the inclusion of the method factor with reverse-worded (RW) items. We also attempted to test measurement invariance by gender and across two cultural contexts: comparing with the USA and Switzerland. In all cases, at least scalar invariance was achieved, allowing for comparisons between the mentioned groups. We also verified construct validity, which allowed us to demonstrate convergent validity when the CRS was correlated with the Enrich Marital Satisfaction Scale and Parental Distress Scale, as well as discriminant validity when the CRS was correlated with the Lie Scale from the Eysenck Personality Questionnaire-Revised. The results of statistical analyses show that the Polish CRS is a valid and reliable measure of the coparenting relationship.

How Can Conflicts with Supervisors or Coworkers Affect Construction Workers’ Safety Performance on Site? Two Cross-Sectional Studies in North America

A safety plateau in the construction industry has been reported in the US and Canada, which has prompted researchers to seek new factors affecting construction safety performance. Tapping into advancements in the theory of human and organizational behaviors can yield valuable new perspectives. Therefore, by leveraging the advancement of the Job Demand Control Support model in the field of occupational safety and health, this paper firstly tested the impact of one newly added hindrance stressor (i.e., interpersonal conflicts on construction sites) by researchers on organizational behaviors on the safety performance of construction workers, based on two cross-sectional studies in the US and Canada. Differentiations were made between conflicts with supervisors and conflicts with coworkers. One personal resource factor, i.e., individual resilience, was also considered in this paper. A “causal” chain that shows the mitigation impact of individual resilience on conflicts with supervisors or coworkers, and the adverse impact of conflicts with supervisors or coworkers, on unsafe events were found to hold true for both US and Canadian construction sites, based on the results from measurement invariance tests and structural equation modelling. Recommendations regarding how to improve construction workers’ individual resilience and reduce interpersonal conflicts on site, thereby reducing safety incidents on site, are provided.

Assessing Electronic Health Literacy in Individuals With the Post-COVID-19 Condition Using the German Revised eHealth Literacy Scale: Validation Study.

The eHealth Literacy Scale (eHEALS) is a widely used instrument for measuring eHealth literacy (eHL). However, little is known so far about whether the instrument is valid for the assessment of eHL in persons who are affected by the post-COVID-19 condition. This is particularly important as people with the post-COVID-19 condition are frequently affected by false information from the internet. The objective of our study was to evaluate the validity and reliability of the German Revised eHealth Literacy Scale (GR-eHEALS) in individuals with the post-COVID-19 condition. A cross-sectional study was conducted from January to May 2022. The self-assessment survey consisted of the GR-eHEALS, health status- and internet use-related variables, sociodemographic data, and (post)-COVID-19-related medical data. Confirmatory factor analysis (CFA), correlational analyses, and tests of measurement invariance were deployed. In total, 330 participants were included in the statistical analyses. CFA revealed that the 2-factor model reached an excellent model fit (comparative fit index=1.00, Tucker-Lewis index=0.99, root mean square error of approximation=0.036, standardized root mean square residual=0.038). Convergent validity was confirmed by significant positive correlations between eHL and knowledge of internet-based health promotion programs, experience in using these programs, and the duration of private internet use. In addition, a significantly negative relationship of eHL with internet anxiety supported convergent validity. Further, significant relationships of eHL with mental health status and internal health locus of control confirmed the criterion validity of the instrument. However, relationships of eHL with physical health status and quality of life could not be confirmed. The 2-factor model was fully measurement invariant regarding gender. Regarding age and educational level, partial measurement invariance was confirmed. The subscales as well as the overall GR-eHEALS reached good-to-excellent reliability (Cronbach α≥.86). The GR-eHEALS is a reliable and largely valid instrument for assessing eHL in individuals with the post-COVID-19 condition. Measurement invariance regarding gender was fully confirmed and allows the interpretation of group differences. Regarding age and educational level, group differences should be interpreted with caution. Given the high likelihood that individuals with the post-COVID-19 condition will be confronted with misinformation on the Internet, eHL is a core competency that is highly relevant in this context, in both research and clinical practice. Therefore, future research should also explore alternative instruments to capture eHL to overcome shortcomings in the validity of the GR-eHEALS.

Evaluating the Psychometric Properties of the Sexual and Gender Minority Adverse Childhood Experiences Scale Among Sexual Minority Men and Women.

Adverse childhood experiences (ACEs) are known determinants of negative health outcomes. Sexual and gender minority (SGM) individuals have higher ACE scores than non-SGM individuals. The SGM-ACE scale was developed to better assess this population but is not yet validated in SGM subgroups. This study aims to validate the sexual and gender minority adverse childhood experiences (SGM-ACE) scale among sexual minority men (SMM) and sexual minority women (SMW), while testing measurement invariance across both groups. A cross-sectional survey included 530 sexual minority adults (265 men, 265 women) in the United States. Cronbach's alpha established internal consistency reliability. Validity was assessed via confirmatory factor analysis (CFA) for the SGM-ACE's theoretical structure and Pearson's correlations for concurrent validity with substance use outcomes (alcohol, cannabis, and drugs). Multigroup structural equation modeling (SEM) determined measurement invariance between SMM and SMW. The CFA of the original model exhibited good fit. Fit was improved after removing the institutionalization item, chi-square (χ2) = 14.26, degrees of freedom (df) = 9, p = 0.113, minimum discrepancy (CMIN/df) = 1.59, comparative fit index (CFI) = 0.99, root mean square error of approximation (RMSEA) = 0.03, 90% confidence interval (CI): (0.00-0.06), and standardized root mean square residual (SRMR) = 0.02. Internal consistency reliability was established (α = 0.78). SGM-ACE exhibited weak, yet significant relationships with each substance use outcome. Multigroup SEM indicated measurement invariance between SMM and SMW. This study provides psychometric validation of the SGM-ACE, establishing measurement invariance between SMM and SMW. Future research should explore its utility in diverse SGM minority subgroups.

Different self-damaging behaviours, similar motives? Testing measurement invariance of motives for nonsuicidal self-injury, disordered eating and substance misuse.

Theory and research suggest that distinct self-damaging behaviours (SDBs; e.g., nonsuicidal self-injury [NSSI], restrictive eating, binge eating, drug misuse, alcohol misuse) share similar motives. However, few studies have used a common self-report inventory to investigate the shared relevance and relative salience of motives for SDBs. Accordingly, the present study: (1) examined whether self-report scales assessing intrapersonal motives (i.e., relieving negative emotions, enhancing positive emotions, punishing oneself) and interpersonal motives (i.e., bonding with others, conforming with others, communicating distress, communicating strength, reducing demands) have invariant factor structures across SDBs; and (2) compared the salience of these motives across SDBs. 1018 adults (54.6% men, Mage = 35.41 years) with a history of SDBs were allocated to the following groups: NSSI (n = 213), restrictive eating (n = 200), binge eating (n = 200), drug misuse (n = 200) or alcohol misuse (n = 205). Participants reported on their motives for engaging in their allocated SDB. Measurement invariance analyses compared the factor structures and latent means of the motive scales across SDBs. The motive scales had comparable factor structures across SDBs. Intrapersonal motives were most strongly endorsed for NSSI and drug misuse. Interpersonal motives were most strongly endorsed for drug and alcohol misuse. All motives were least salient to restrictive eating. Results suggest that common motives underlie distinct SDBs and that they can be adequately assessed using a single self-report inventory. However, certain motives are more relevant to some SDBs than others, with restrictive eating being the most motivationally distinct SDB. This knowledge can inform transdiagnostic models and interventions for SDBs.

Item Response Theory Analysis and Measurement Invariance Testing of the Cultural Humility and Enactment Scale

Objective This study aimed to validate the Cultural Humility and Enactment Scale (CHES) through (a) examining its factor structure with multiple samples; (b) employing item response theory (IRT) analysis to examine its item-level characteristics; (c) reducing potential redundancies among items; and (d) conducting measurement invariance (MI) testing. Method The sample included a total of 610 individuals with diverse demographic backgrounds recruited from Mturk. Analyses included exploratory factor analysis (EFA), IRT analysis, confirmatory factor analysis (CFA), and multi-group CFA. Results We replicated the three-factor structure and retained the 21-item CHES (CHES-21), which showed equivalent information coverage and superior model fit compared to the original 29-item version. We also obtained evidence for MI of the CHES-21 between White and nonwhite clients and between male and non-male clients. Conclusion Evidencing reliability and validity with a sample of adult clients, the CHES-21 can be effectively incorporated into counseling practice and counselor training.