Unidimensional Measure Research Articles

Ecological Grief, Eco-Anxiety and Climate Change; Development and Validation of the Solastalgia Scale

Background: As environmental changes accelerate, psychological impacts such as ecological grief and eco-anxiety become more pronounced. This study focuses on the validation and enhancement of the Solastalgia Scale, originally a unidimensional measure, to assess these complex psychological responses more effectively. Objective: To expand and validate the Solastalgia Scale into a three-dimensional tool encompassing ecological grief, environmental identity, and eco-anxiety, addressing gaps in current research methodologies. Methods: Our methodology involved two main phases: exploratory and confirmatory factor analysis. Initially, exploratory factor analysis was conducted on a purposive sample of 317 participants from Punjab (125 men, 192 women), using Principal Component Analysis, scree plots, and eigenvalues to extract 13 items across three factors. This was followed by confirmatory factor analysis on a new sample of 319 participants (141 men, 178 women) to validate the scale's three-dimensional structure and ascertain model fit indices. Results: The exploratory factor analysis identified three distinct factors, resulting in a 13-item scale. Confirmatory factor analysis confirmed the three-dimensional structure with excellent fit indices (CFI = 0.95, TLI = 0.93, RMSEA = 0.05, SRMR = 0.04). This multi-dimensional approach contrasts with previous research that employed a single-dimensional focus. Conclusion: The revised Solastalgia Scale is a robust tool for assessing the psychological impact of environmental change across multiple dimensions. This scale is instrumental for researchers and practitioners in understanding and mitigating the psychological effects of ecological grief, enhancing resilience and well-being in the face of environmental disruptions.

Sexual and Gender Identity Properties and Associations With Physical and Mental Health Among SGM Midlife and Older Adults: Findings From Aging With Pride: National Health, Aging, and Sexuality/Gender Study

Objectives: Unidimensional measures of sexual and gender identity are most often used in research. Yet, sexuality and gender are defined by complex characteristics. Guided by the Health Equity Promotion Model, we assess multidimensional properties of sexual and gender identity. Methods: This study utilizes 2016 survey data from Aging with Pride: National Health, Aging, and Sexuality/Gender Study (NHAS) to investigate properties of identity (affirmation, visibility, centrality, integration, congruence, continua, transformation) and their association with multimorbidity, disability, general health, depression, quality of life among SGM adults ( N = 2233), 50 and older. Results: Higher affirmation, centrality, congruence, and transformation were associated with better health, while identity integration and continua were associated with some adverse health outcomes. Bisexual men, sexually diverse and transgender individuals had the lowest identity centrality and visibility. Discussion: The findings necessitate a multidimensional approach to identity and the use of measures that are comprehensive and responsive to sexual and gender diversity.

The relationships between body image, self-esteem and quality of life in adults with trauma-related limb loss sustained in the Syrian war

BackgroundNumerous military soldiers have lost limbs as a result of the Syrian War. While there are variations between trauma-related amputations in military and civilian populations, both scenarios result in life-changing injuries. ObjectiveTo explore the relationship between body image, self-esteem, and quality of life (QOL) domains following trauma-related major amputation.It will be the first study in Syria on the correlation between self-esteem and body image. It will help improve our quality of care to meet patient needs and increase well-being, which in turn will help to address body image, self-esteem, and QOL. MethodA cross-sectional study that recruited 235 soldiers with amputations in two centers and two military hospitals in Latakia and Tartous. Patients were given an 81-item questionnaire that included the Amputee Body-Image Scale (ABIS), the Rosenberg Self-esteem (RSE) scale, the WHOQOL-BREF questionnaire, and unidimensional pain measures. The ANOVA test, a student's t-test, multiple linear regression, internal consistency, and test-retest reliability were utilized for statistical analysis. ResultsThere was a strong relationship between body image, self-esteem, and QOL, with the presence of body image concerns significantly associated with lower self-esteem scores and lower QOL scores (p=0.001). Patients with phantom pain sensation had significantly reduced self-esteem (p =0.001), greater body image concerns (p =0.001), and lower scores in all domains of QOL. We found that body image and self-esteem impacted the psychological, social, and environmental domains. After controlling for pain level and number of co-morbid conditions, body image and self-esteem did not predict WHOQOL-BREF scores, with the exception of the environmental domain, where no pain and low self-esteem predicted better environmental domain scores. ConclusionPatients' body image and self-esteem were greatly impacted by lower-limb amputations. Additionally, phantom pain further impacted self-esteem, body image, and QOL. The image of the body had a profound effect on psychological, social, and environmental domains, and self-esteem was influenced by almost all aspects of QOL.

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.

Psychometric properties of the Beliefs About Adults with ID Scale in American physicians: Application of classical test and Rasch measurement theories.

Physicians' erroneous assumptions about individuals with intellectual disability (ID) negatively impact the quality of care provided to this population. This study aimed to investigate the psychometric properties of the Beliefs About Adults with ID (BAID), an instrument we developed for measuring physicians' erroneous assumptions about adults with ID. Two hundred ninety-two American physicians participated. Classical test theory and Rasch measurement theory were used to refine the scale (through item analysis, exploratory factor analysis, infit and outfit mean-squares statistics, and differential item functioning) and investigate its psychometric properties (functioning of the response scale, reliability, and validity). The BAID provided a unidimensional, reliable, valid, and precise measure in assessing high levels of erroneous assumptions. It showed convergent and divergent validity with the different factors of a scale measuring attitudes towards ID. The BAID items were discriminant, non-redundant, unambiguous, and invariant across gender and previous ID training. The BAID response scale was found to be appropriate for measuring physicians' erroneous assumptions about adults with ID. BAID is a brief instrument with good psychometric properties to assess erroneous assumptions about adults with ID in physicians of different genders and who have/have not previously received ID training. Therefore, it might be helpful for research and medical education purposes.

Spanish Adaptation and Psychometric Properties of the Protective Behavioral Strategies for Marijuana Scale: The Protective Behavioral Strategies for Cannabis Scale (S-PBSC)

AbstractThe Protective Behavioral Strategies for Marijuana scale (PBSM) was initially developed using samples of university students in USA. A community sample of Spanish young adults was recruited to provide the Spanish full-length and short versions of the Protective Behavioral Strategies for Cannabis use (S-PBSC; S-PBSC-SF). We followed a rigorous item-selection process to select the most relevant items from the original 50-item pool developed by Pedersen et al. (2016), on the basis of evidence of reliability, evidence of validity according to the internal structure (factor loadings, invariance across genders and university status, and differential item functioning [DIF]), and evidence of validity based on the relationships between S-PBSC scores and cannabis outcomes. Our findings support a 31-item unidimensional measure and a 13-item short form with excellent fit and internal consistency, invariant across genders and college status and free of DIF. Both the S-PBSC and S-PBSC-SF scores were associated with reduced cannabis use and consequences.

Correlates of Impairment and Growth in Families of Young Autistic Children.

The purpose of this project was to investigate potential correlates of family life impairment in families of young autistic children. This project incorporated measures of specific child and parent challenges in addition to a commonly used unidimensional measure of autism characteristics. In this way, we could assess whether such challenges explain variance in family life impairment, and whether their inclusion diminish associations between autism characteristics and family life impairment. Cross-sectional data were collected from 564 parents of autistic children aged 2 to 5years who participated in a larger online study. Participants completed measures on child characteristics (autism characteristics, emotion dysregulation, speaking ability, flexibility, and sleep problems), parent depression, and family life impairment, using the Family Life Impairment Scale (FLIS). Multiple linear regression models were generated to examine whether any of the independent variables were associated with the four domains of the FLIS. Models controlled for child age and sex, parent education, and single-parent homes. All independent variables were associated with impairment in one or more FLIS domains. None of the primary independent variables were significantly associated with positive growth. More overt characteristics and behaviors (e.g., autism characteristics, reactivity, speaking ability, and flexibility) were associated with impairment in domains that reflected a family's ability to navigate the community. However, sleep challenges and parent and child emotional difficulties were most strongly associated with parent impairment. Findings suggests that families may have different needs across contexts and provide new avenues through which they might be better supported.

Psychometric network analysis of the Patient Health Questionnaire-4 (PHQ-4) in Paraguayan general population.

Depression and anxiety are two of the most prevalent and disabling mental disorders worldwide, both in the general population and in outpatient clinical settings. This study aimed to analyze the psychometric properties of the Patient Health Questionnaire-4 (PHQ-4) based on network analysis metrics. A total of 911 Paraguayans (23.71% women and 76.29% men; mean age 31.25years, SD = 10.63), selected by non-probabilistic convenience sampling, participated in the study. Network analysis was used to evaluate the internal structure, reliability, and measurement invariance between men and women. The results revealed that the PHQ-4 is a unidimensional measure through Exploratory Graph Analysis (EGA). Reliability, through structural consistency, identified that 100% of the time, only a single dimension was obtained, and all items remained stable, as they were always replicated within the empirical dimension. The unidimensional structure has shown evidence of configural invariance; therefore, the network structure functioned equally among the different sex groups. The PHQ-4 presented optimal preliminary evidence of validity based on its internal structure, reliability, and invariance between sexes. Therefore, it may be useful as an accurate and brief measure of anxiety and depressive symptoms in the Paraguayan context.

The Fremantle Back Awareness Questionnaire: cross-cultural adaptation, reliability, and validity of the Italian version in people with chronic low back pain

Background and aimThere is evidence to suggest that assessing back-specific altered self-perception may be useful when seeking to understand and manage low back pain (LBP). The Fremantle Back Awareness Questionnaire (FreBAQ) is a patient-reported measure of back-specific body perception that has never been adapted and psychometrically analysed in Italian. Hence, the objectives of this research were to cross-culturally adapt and validate the Italian version of this outcome measure (namely, the FreBAQ-I), to make it available for use with Italians suffering from chronic LBP.MethodsThe FreBAQ-I was developed by forward and backward translation, review by a committee skilled in patient-reported measures and test of the pre-final version to assess its clarity, acceptability, and relevance. The statistical analyses examined: structural validity based on Rasch analysis; hypotheses testing by investigating correlations of the FreBAQ-I with the Roland Morris Disability Questionnaire (RMDQ), a pain intensity numerical rating scale (PI-NRS), the Pain Catastrophising Scale (PCS), and the Tampa Scale of Kinesiophobia (TSK) (Pearson’s correlations); reliability by internal consistency (Cronbach’s alpha) and test–retest repeatability (intraclass correlation coefficient, ICC (2,1)); and measurement error by determining the minimum detectable change (MDC). After the development of a consensus-based translation of the FreBAQ-I, the new outcome measure was delivered to 100 people with chronic LBP.ResultsRasch analysis confirmed the substantial unidimensionality and the structural validity of the FreBAQ-I. Hypothesis testing was considered good as at least 75% of the hypotheses were confirmed; correlations: RMDQ (r = 0.35), PI-NRS (r = 0.25), PCS (r = 0.41) and TSK (r = 0.38). Internal consistency was acceptable (alpha = 0.82) and test–retest repeatability was excellent (ICC (2,1) = 0.88, 95% CI: 0.83, 0.92). The MDC95 corresponded to 6.7 scale points.ConclusionThe FreBAQ-I was found to be a unidimensional, valid, and reliable outcome measure in Italians with chronic LBP. Its application is advised for clinical and research use within the Italian speaking community.

The development and validation of a Multidimensional Perceived Work Ability Scale.

Research on the concept of existing unidimensional Perceived Work Ability scale (PWA) in organizational science has recently increased due to its prediction of important work, individual, and labor force outcomes. To date, PWA has been measured as a unidimensional construct. The present study outlines the need for the multidimensional conceptualization of PWA and its measurement. We describe the development and validation of the Multidimensional Perceived Work Ability Scale (M-PWAS), comprising four dimensions: physical, cognitive, interpersonal, and emotional. In line with Hinkin's (1998) approach to scale validation, we use four samples (total N = 1,152) to establish the M-PWAS as a reliable and valid measure of PWA. Through an iterative item generation and review process, we found evidence for content validity. Furthermore, each subscale demonstrated high internal consistency and factorial validity, and analysis of the PWA nomological network demonstrated evidence for convergent and discriminant validity. Finally, we found that the M-PWAS showed incremental validity over an existing unidimensional PWA measure in the prediction of perceived stress, emotional exhaustion, work engagement, and turnover. We discuss implications for theory, research, and workplace interventions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Exploratory and confirmatory factor analysis of emPHasis-10: The health-related quality-of-life measure in pulmonary hypertension.

The emPHasis-10 is a health-related quality of life (HRQoL) unidimensional measure developed specifically for adults with pulmonary hypertension. The tool has excellent psychometric properties and is well used in research and clinical settings. Its factor structure has not been examined, which may help to identity a complimentary approach to using the measure to examine patient functioning. We performed an exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) on a data set collected from 263 adults with PH recruited from a community setting. The EFA suggested the emPHasis-10 consists of three underlying latent variables, which based on the loading of items, were termed "fatigue" (Items 3, 4, and 5), "independence" (Items 7, 8, 9, and 10), and "breathlessness" (Items 1, 2, and 6). All factors were found to have good internal consistency. "Independence" accounted for most of the variance (29%), followed by "breathlessness" (22%) and "fatigue" (19%). The CFA looked to confirm the fit of a three-factor model. A higher-order model was found to be the best fit consisting of HRQoL as a superordinate factor, for which the association between this factor and the 10 items was mediated through the three latent factors. Further analyses were performed testing the validity of the latent variables revealing all were significantly correlated with self-reported measures of depression, anxiety, health-anxiety, and dyspnea. Our analyses support the emPHasis-10 as a measure of HRQoL, while also proposing the clinical utility of examining the three emergent factors, which could be used to glean additional insight into the respondent's functioning and inform care.

Evaluating the psychometric properties of the Swedish version of the Impostor Profile scale (IPP30).

The Impostor Profile scale (IPP30) is a recently developed tool designed to delve into the nuanced aspects of the Impostor Phenomenon (IP), a psychological phenomenon where individuals wrongly attribute their successes to external factors, discounting their own abilities and often feeling like frauds. This study aimed to assess the psychometric properties, including factor structure, internal consistency, and nomological validity, of the Swedish version of IPP30 (S-IPP30). In a sample of Swedish students (N = 1,010; 76.7% women; Mage = 25.65, SDage = 6.43), Exploratory and Confirmatory Factor Analyses were conducted to scrutinize S-IPP30's structure. The analyses supported a bifactor model with six specific factors and one overarching factor. However, two items in the scale displayed poor alignment with their intended subscales, adversely affecting the internal consistency of the two subscales. Consequently, a rephrasing of these items was suggested. The remaining four S-IPP30 subscales exhibited good internal consistency (Cronbach's α = 0.76-0.90, McDonald's ω = 0.77-0.91). Convergent validity was confirmed by largely replicating correlations among various S-IPP30 facets, the unidimensional IP measure, personality variables, and self-esteem, thereby accomplishing the goal of validating S-IPP30. This proposed modification of the two items requires further validation using a new sample to ensure its appropriateness and effectiveness in measuring the intended constructs.

Comparison of a Multidimensional to a Unidimensional Measure of Public Service Motivation: A Ghanaian Study

Comparison of a Multidimensional to a Unidimensional Measure of Public Service Motivation: A Ghanaian Study

Validation of the Super-Brief Pathological Narcissism Inventory (SB-PNI) among Swedish adolescents

This study examines the psychometric structure and properties of the Swedish version of the Super-Brief Pathological Narcissism Inventory (SB-PNI) among adolescents. In order to ensure the validity and feasibility of the measure, we examined the factor structure, measurement invariance across gender, age and ethnicity, and construct validity in relation to a number of correlates of narcissism in adolescence. Data were drawn from a large cross-sectional survey conducted in 35 schools in southern Sweden. The sample consisted of N = 5313 adolescents (Mage = 16.10 SD = 1.55) with 52.2% girls, 45.9% boys and 1.8% adolescents with unspecified gender, from compulsory and upper secondary schools in southern Sweden. The results showed that the measure holds a two-factor structure, suggesting the use of the subscales grandiosity and vulnerability separately, rather than as a unidimensional measure. The correlated factors grandiosity and vulnerability yielded full configural and metric invariance across gender, age, and ethnicity. Both grandiosity and vulnerability were correlated with externalizing and internalizing symptoms, as well as with low self-esteem. The study provides evidence for the utility of the SB-PNI among Swedish adolescents and indicates that the measure can be used across male and female adolescents of different ages and ethnic groups.

Psychological perspectives on divine forgiveness: seeking divine forgiveness.

Seeking divine forgiveness (forgiveness by a Supreme Being or Higher Power) is important because the perception of such forgiveness is associated with psychological well-being This paper is the first to examine a process model of divine forgiveness in which the decision to pursue such forgiveness initiates the process of seeking it. Two studies investigate the likelihood of seeking divine forgiveness. Study 1 (N = 190) introduces and provides discriminant validity for a unidimensional measure divine forgiveness seeking. Convergent validity is provided by demonstrating that seeking divine forgiveness correlates with reported experiences of divine forgiveness both concurrently and six weeks later. Study 2 (N = 390) provides a confirmatory factor analysis of seeking divine forgiveness scale items identified in Study 1 and replicates the concurrent and temporal association with reported experiences of divine forgiveness using a longer time interval (12 weeks). It also documents associations between a person's image of God, attachment and closeness to God and the likelihood of seeking divine forgiveness. Both studies control for religiosity and Study 2 introduces an additional control for impression management. Together, they provide support for the idea that the decision to pursue divine forgiveness begins the process of seeking such forgiveness. We discuss limitations of the research and outline several paths for additional studies.

Untangling the link between experiential avoidance and non-suicidal self-injury: a multidimensional approach

ABSTRACT Objective Experiential avoidance, an individual’s unwillingness to experience uncomfortable internal feelings/emotions, has been found to be associated with history of self-injury. This association is mainly found in studies that use global measures of experiential avoidance. However, experiential avoidance is purported to be a multidimensional construct. This study aims to test both unidimensional and multidimensional measures of experiential avoidance and their associations with self-injury. Method University students (n = 632, M = 25.01, SD = 7.13, 78.8% female, 70.9% with lived experience of self-injury) completed well-validated self-report measures of self-injury, experiential avoidance (The Brief and the Multidimensional Experiential Avoidance Questionnaire). Results As expected, all sub-scales of multidimensional measure of experiential avoidance were highly correlated with the global score for experiential avoidance. The global measure of experiential avoidance differentiated individuals with no history, with past history, and recent history of self-injury. When assessed using the multidimensional measure, only the sub-factors behavioural avoidance and repression and denial differentiated those with no history of self-injury from those with recent history and those with recent history from those with past history of self-injury. Conclusion Findings raise the possibility that associations between experiential avoidance and self-injury may be down to two specific aspects of experiential avoidance, namely 1) behavioural avoidance and 2) repression/denial. If true, this will have important theoretical, clinical, and measurement implications for research into self-injury.

German translation of the Four-Item Mentalising Index (FIMI-G)

Mentalising can be defined as the social-cognitive ability to understand and infer the mental non-emotional states of oneself and others. Recently, the Four-Item Mentalising Index (FIMI), a self-report scale, was developed to efficiently measure mentalising ability in English-speaking samples. This study presents a German translation of the FIMI—namely, the Four-Item Mentalising Index-German (FIMI-G). To assess the usefulness of the translation, initial evidence for the psychometric properties of the FIMI-G was gathered in a German-speaking sample from Austria, Germany, and Switzerland (N = 283). As expected, the corrected item-total correlations, the confirmatory factor analysis, and the inner consistency estimation indicated a homogenous, unidimensional measure which corresponds to the English original. In addition, the FIMI-G scores were related to the validation criteria as expected. Socially desirable responding did not undermine the validity. It is concluded that the German FIMI translation is a useful measure.

Reliability and Factorial Validity of the Core Self-Evaluations Scale

Abstract: The Core Self-Evaluations Scale (CSES) measures a broad personality trait reflecting individuals’ self-appraisals of their worth, capabilities, and control of their lives. Although the CSES was designed to capture a single trait, factor analytic studies often found more complex measurement structures. These either referred to different content facets or methodological artifacts due to the item wording. The present random-effects meta-analysis summarized correlation matrices from 53 samples including 31,843 respondents. After accounting for acquiescent responding, meta-analytic confirmatory factor analyses revealed a single common factor for all items. The factor was highly reliable (ω = .87) and demonstrated partial metric measurement invariance across English, German, and Spanish language versions as well as cultural tendencies of individualism and flexibility. However, Chinese and Romanian translations exhibited substantially lower factor loadings. These results corroborate the use of the CSES as a unidimensional measure, albeit systematic investigations of measurement invariance are recommended before its use in cross-cultural research.

The scale of myths of romantic love: Psychometric properties and gender differences in Spanish adolescents

Adolescence is characterized by the emergence of romantic interactions. This study aims to explore the psychometric properties of the Scale of Myths of Romantic Love (SMRL) and the gender differences in Spanish adolescents. The sample was representative and consisted of 1,840 third (52.8%) and fourth (47.2%) year students in compulsory secondary education in Castilla-La Mancha. In line with the original validation, the results of the factor analyses show that the SMRL is a mainly uni-dimensional measure when applied to adolescents. The bi-factor analysis yields satisfactory fit indices (in terms of GFI, AGFI, CFI, RMSEA, SRMR; Medrano & Muñoz-Navarro, 2017) and indicates that the general factor is more solid than the specific factors (in terms of ECV, ωh and H h). Correlations with the Myths Scale toward Love and the Gender Equality Attitudes Scale provide evidence in favor of convergent and discriminant validity. Boys scored significantly higher than girls on the SMRL. In conclusion, this is a suitable instrument to scientifically address romantic myths at the adolescent stage, but also to complement and guide educational interventions.

Assessing the Performance of a Nutrition Knowledge Questionnaire With a Low Socioeconomic Status Population Using Rasch Analysis.

Parents and preschool teachers play a key role in shaping children's dietary behaviors. Knowledge of nutrition and healthy dietary choices is a key component to improve dietary habits and reduce the prevalence of obesity and associated co-morbidities. Using valid and reliable instruments is necessary for accurate assessment of knowledge to tailor interventions and measure effectiveness specific to the population of interest. The objectives of this paper are to (1) identify potential gaps in the baseline nutrition knowledge among parents and teachers using a previously validated questionnaire prior to a preschool obesity prevention intervention; and (2) assess the instrument's reliability and construct validity for a low socioeconomic status population using a post hoc Rasch analysis. Participants included 177 parents and 75 teachers who participated in a Head Start intervention study. Knowledge scores, instrument reliability, and item fit and difficulty were assessed using a Rasch analysis; t-tests were used to determine differences in scores between parents and teachers. Parents answered 38% of questions correctly while teachers correctly answered 46% of the questions. Adequate item fit and reliability were indicated for Sections 1 and 2 of the Nutrition Knowledge Questionnaire (NKQ). Section 3 demonstrated less adequate reliability. The items were found to adequately and reliably define the unidimensional measures of the three components of knowledge represented in this instrument, providing evidence of construct validity. However, Rasch measures indicated the NKQ overall was difficult for participants. Recommendations for improving the instrument for nutrition education/intervention and research practice areas related to obesity and obesity-related conditions are addressed.