Original Five-factor Structure Research Articles

Validation Study of the Spanish Version of the Measure of Happiness (MH) Questionnaire.

This study aims to validate the Spanish version of the Measure of Happiness (MH), a questionnaire that identifies the specific areas of an individual's life that are related to experienced happiness. The sample consisted of 458 Spanish native speakers (65.7% women, 34.3% men; mean age = 24.14, SD = 8.45) and was divided into two groups: Sample 1 (N = 226) underwent Exploratory Factor Analysis (EFA), and Sample 2 (N = 232) underwent Confirmatory Factor Analysis (CFA). The convergent and discriminant validity of the Spanish version of the MH and its subscales was assessed by calculating Pearson correlations between the MH factors and the Subjective Happiness Scale, the State-Trait Anxiety Inventory, the Beck Depression Inventory, and the WHOQOL-BREF. The EFA and CFA confirmed the original five-factor structure of the MH questionnaire. The only difference in the Spanish version of the MH is that Item 4, which was originally assigned to Factor 2 "Financial Status", was reallocated to Factor 1 "Psychophysical Status". The reliability of the Spanish version of the MH questionnaire was also confirmed, and the factors correlated in the expected direction with the constructs of quality of life, happiness, anxiety, and depression. The MH questionnaire demonstrated excellent psychometric properties among Spanish respondents.

The Turkish version of nursing practice readiness scale: Cross-cultural adaptation and psychometric evaluation.

This study aims to adapt the "Nursing Practice Readiness Scale" to Turkish culture, and evaluate its psychometric properties. New graduates' nursing practice readiness can impact their work adaptation and performance. The research employed a methodological design. Data were collected between May and July 2022. The sample consisted of 436 newly graduated nurses. Content validity, construct validity and criterion validity were evaluated. Reliability was examined with adjusted item-total correlation, Cronbach's a coefficient, composite-reliability and split-half reliability. The Turkish version of Nursing Practice Readiness Scale was found to have good content and criterion validity. As a result of confirmatory factor analysis, the original five-factor structure of the scale was also confirmed for the Turkish version. The scale's overall Cronbach's α coefficient was determined to be 0.96, with subscale coefficients ranging from 0.73 to 0.94. The composite reliability values of the subscales were found between 0.75 and 0.94. In split-half reliability, the correlation coefficient between half was 0.952, with a Spearman-Brown Coefficient (Unequal Length) of 0.976. The Turkish version of Nursing Practice Readiness Scale is a valid and reliable measurement tool for evaluating the nursing practice readiness of newly graduated nurses.

Validation and measurement invariance of the Compulsive Exercise Test among Brazilian and American young adults

PurposeTo evaluate compulsive exercise, researchers often rely on the widely used Compulsive Exercise Test (CET). However, the measure has shown unstable factor structure in several validation studies and is not available in Portuguese for use in Brazil. We aimed to describe the translation and cultural adaptation of the CET to Brazilian Portuguese, to test several factor structures among Brazilian and US samples of men and women, to test measurement invariance across countries, and to evaluate its internal consistency. Furthermore, we sought to evaluate convergent validity, correlating the CET with a measure of eating disorder symptoms, and to compare compulsive exercise symptoms between countries.MethodsFour models of the latent structure of the CET were tested using confirmatory factor analyses (CFAs), three-factor structure with 15 items, three-factor structure with 18 items, four-factor structure with 21 items, and the original five-factor structure with 24 items, in a sample of 1,531 young adults (601 Brazilians and 930 Americans), aged 18–35 years.ResultsA series of CFAs demonstrated that the three-factor structure with 15 items showed a better fit to the data. This model demonstrated good convergent validity and internal consistency. Results from the CET multigroup CFA showed evidence for the invariance at the configural, metric, and scalar levels across Brazilians and Americans. Furthermore, significant differences were found between Brazilians and Americans, with Brazilians demonstrating higher scores on the Avoidance and rule-driven behavior and Mood improvement subscales, whereas US participants scored higher on the Weight control exercise subscale.ConclusionsResults support the three-factor structure with 15 items to be used as a measure of compulsive exercise among Brazilians and Americans, allowing cross-cultural comparisons between these countries.Level of evidence Level V, Cross-sectional, Psychometric study.

초·중등 예비교사의 교육적 공정마인드셋에 관한 탐색적 연구

This study aimed to assess the level of educational equity mindset among Korean pre-service teachers, a fundamental pillar for promoting culturally responsive teaching and education for equity and justice. To achieve this goal, we conducted an online survey using the Teachers' Equity Mindset tool developed by the MIT Teaching Systems Lab. The data was collected from 223 pre-service teachers enrolled in an elementary school teacher training institute in Gyeonggi-do and a secondary school teacher training institute in Daejeon. We conducted an exploratory factor analysis to validate the factor structure and a reliability analysis. The exploratory factor analysis revealed five distinct factors, deviating from the original five-factor structure. According to the empirically derived factors, Korean pre-service teachers demonstrated a strong educational equity mindset, particularly in areas concerning “cultural understanding of students' backgrounds” and “racial identity.” However, lower scores were observed in sub-factors such as “critical consciousness of discrimination at school” and “awareness of cultural conflicts,” compared to other dimensions. Furthermore, we investigated variations in Korean pre-service teachers' equity mindset based on different backgrounds. Gender differences analysis revealed that female pre-service teachers demonstrated a stronger equity mindset compared to their male counterparts. Based on these research findings, we provide suggestions for theoretical developments and advancements in understanding the educational equity mindset within the Korean context. Additionally we offer practical recommendations to enhance teacher training programs in South Korea, focusing on developing pre-service teachers' competence in performing equity-minded educational practices for promoting equity and justice in education.

Translation and validation of the Arabic version of the Digital Stress Scale (DSS-A) with three Arabic-speaking samples

ObjectiveGiven the ubiquitous nature of digital technologies such as smartphones, research has increasingly focused on the health outcomes of prolonged use of such technologies. The Digital Stress Scale (DSS) has been developed recently, but it is currently only available in English and Chinese, and validations in other languages are warranted.MethodsThe 24-item DSS was translated into Arabic using the method of translation and back-translation. Using a general population sample (n = 1069) from Saudi Arabia, Oman, and Jordan, the psychometric properties of the Arabic DSS (DSS-A) were investigated using higher-order confirmatory factor analysis.ResultsThe original five-factor structure was replicated for the DSS-A without the need for any modifications such as item deletion or reassignment of items to another factor. Reliability was excellent for the total scale score (α = 0.92) as well as for the five subscales (α ranged between 0.81 and 0.91). Convergent validity was supported by significant correlations between the DSS-A and psychological distress.ConclusionThe strong psychometric properties of the DSS-A imply that this scale can now be used with high validity and reliability to explore the role of digital stress and its sub-characteristics in Arabic-speaking populations.

Factor structure and validity of the Parental Competence Questionnaire in the Paediatric Hospital Emergency Setting (ECP-U)

ObjectiveTo confirm the structure and examine the psychometric properties of the Parental Competence Questionnaire in the Paediatric Hospital Emergency Setting (ECP-U). MethodsAn instrumental validation study of the ECP-U questionnaire and an examination of its psychometric properties were carried out. ResultsThe participants were 260 mothers and fathers seeking care in the paediatric emergency department of a hospital in Valencia (Spain) with children aged 0 to 14 years old. The five-factor structure of the ECP-U was confirmed with excellent statistical fits. Second-order models and a more parsimonious four-factor structure with adequate but marginal fits are proposed. With the exception of the “parental agency” factor (in both models examined) and the “active social support” factor (in the original five-factor structure), the internal consistency of the different factors was modest (≥ 0.70). A negative correlation was found between the Parental Stress Scale and the ECP-U for most factors. ConclusionsValidity and reliability analyses indicate that the ECP-U is an instrument with modest psychometric properties. Implications for practiceThe ECP-U is an instrument that can be used by future researchers to identify different levels of parental competence in paediatric hospital emergency departments. This will enable help to be given to families with parenting issues and problems. The underlying concern is to reduce the number of frequent users and “Non-Urgent Presentations” to paediatric emergency departments due to low parental competence.

Does the Five Facet Mindfulness Questionnaire measure the same constructs before and after ACT-based treatment? Examination of the longitudinal measurement invariance of the 24-item FFMQ-SF

Violations of longitudinal measurement invariance (LMI) suggest “response shifts” in individuals’ understanding and appraisal of items over time and result in misinterpretation of observed changes in outcome measures. These concerns are crucial to the validity of outcome measures and are particularly relevant in examining the effectiveness of mindfulness and other process-based interventions. In the current report from the Rhode Island Methods to Improve Diagnostic Assessment and Services (MIDAS) project, we examine the LMI of the 24-item short form of the Five Factor Mindfulness Questionnaire from intake to discharge in a large, diagnostically heterogeneous sample of psychiatric patients (n = 2928) participating in an acceptance and commitment therapy-based partial hospitalization program. The original five-factor structure required correlated error terms for items with similar wording (Nonjudging of Experience and Describe scales) to achieve acceptable fit. Following these modifications, we found evidence of configural and weak invariance for all scales. We found evidence for strong invariance for Nonjudging of Experience, Nonreactivity to Inner Experiences, Describe, and Observing, but not for Acting with Awareness. Strict invariance was not supported. Results highlight the challenges of measuring constructs involving overt metacognitive processes via self-report. Implications for scale development and clinical practice are discussed.

TEACHING MANAGEMENT SCALE OF META-REGULATED LEARNING IN LAW

Students' deep reflection in their learning process is fundamental; however, there are still not enough advances on how teachers can promote this process in virtual and hybrid environments. The aim of the study was to design and validate the scale of teaching management of meta-regulated learning in ICT-mediated learning contexts. The sample consisted of 244 university teachers from Lima-Peru, and the statistical packages SPSS v26, AMOS v24 and R-Project v.1.2 were used. The reliability and validity analysis of the final construct was carried out by calculating Cronbach's alpha, the Omega coefficient, and the Theta coefficient. The results confirm that the original five-factor structure was re-signified into four final factors (teaching management of self-regulation, teaching management of meta-reflection, teaching management of collaboration and teaching management of metacognition). It is, therefore, a valid instrument because it captures specific teaching skills for the management of meta-regulated learning in students. It provides important information to teachers to implement preventive and intervention actions to improve students' intention to learn, as well as to evaluate their own teaching, considering that more research is needed to examine how students perceive various components in the process of learning to learn.

Factor Structure of the Teacher Strengths and Difficulties Questionnaire in a Large Community-Based Sample: An Investigation of Alternative Measurement Models.

The Strengths and Difficulties Questionnaire (SDQ) is a screening measure commonly used to assess behavioral and emotional symptoms and strengths among children and adolescents. However, despite its frequent use, its underlying factor structure remains an important area of inquiry. Whereas the original five-factor structure has often been supported through exploratory factor analysis, results from confirmatory analyses continue to yield mixed results. We analyzed data from youth in Grades K through 12 from a large epidemiologic study in the Southeastern United States. Teacher-report SDQ data were used to test three confirmatory factor models by school level (i.e., elementary [Grades K-5] and secondary [Grades 6-12]): The original five-factor model, a three-factor model, and a bifactor model. Model fit indices and reliability measures supported the original five-factor model as the preferred model when using the teacher-reported SDQ with both elementary and secondary school children. Implications for using the SDQ in applied research and predictive modeling are discussed.

Cross-cultural adaptation of the Science Motivation Questionnaire II (SMQ-II) for Portuguesespeaking Brazilian secondary school students

Introduction: Science motivation is important for students’ scientific literacy. Yet, there is a lack of valid and reliable measurement tools for the Brazilian context. This study presents the Brazilian Portuguese version of the Science Motivation Questionnaire (SMQ-II) and motivational baseline data. Method: The instrument was translated into Brazilian Portuguese using cross-cultural validation procedures. For structural validity evidence, the responses of 646 secondary school students were subjected to exploratory and confirmatory factor analysis, as well as measurement invariance. For reliability evidence, Cronbach’s alpha (α) and McDonald’s omega (ω) were calculated. Students’ motivation was analysed using 2 (gender) x 4 (grade levels) x 3 (study modality) MANOVA. Results: 24 items measuring intrinsic motivation, career motivation, grade motivation, and self-efficacy supported a four-factor structure with adequate reliability against the original five-factor structure (self-determination was not salient). Measurement invariance was established across the gender and study modalities, but not for grade levels. Higher-grade level Brazilian students were less motivated, and girls reported higher intrinsic and career motivation, but lower self-efficacy than boys. Conclusion: These findings lay the foundation for the assessment of Brazilian students’ science motivation, although they also reveal problems in the latent structure of the SMQ-II and call for the development of instruments rooted in contemporary motivational theories.

Structural validity of the Norwegian version of the Strengths and Difficulties Questionnaire in children aged 3-6 years.

This study examined the structural validity of the teacher-report Strength and Difficulties Questionnaire (SDQ) in Norwegian preschoolers aged 3-6 years. We tested the original five-factor structure, the five-factor structure with two broader second-order factors, and a three-factor structure, all suggested in the literature. Since the positively worded items in SDQ have been shown to introduce noise, we also examined all three structures with a positive construal method factor for these items. Preschool teachers from 43 preschools completed the SDQ questionnaire for 1,142 children [48% girls, mean age 4.3 (SD 0.9) years]. Confirmatory factor analyses were used to estimate and compare the six models. Measurement invariance was tested across sex (multi-group approach) and age (multiple-indicator multiple-cause approach). The original five-factor structure of SDQ was supported, where the model fit improved when including a method factor for positively worded items. Both models showed scalar invariance across sex and age. The second-order and the three-factor structures were not supported. We recommend using the original five-factor structure when using SDQ for both clinical and research purposes in young children and adding a method factor when using structural equation modeling.

The structure of the Italian version of the Practice Environment Scale of the Nursing Work Index.

To investigate the factor structure of an Italian translation of the Practice Environment Scale of the Nursing Work Index (PES-NWI). Italy suffers from high turnover rates, yet validated tools in Italian to study and manage the problem are lacking. The PES-NWI measures aspects of nurses' working environment. This study reports on the translation and investigation of the structure of the translated PES-NWI scale. A survey was conducted with 3667 nurses from 182 hospitals across 13 Italian regions using the PES-NWI. The structure of this scale was investigated using principal components analysis and other properties, including internal consistency (Cronbach's alpha). Construct validity was investigated using logistic regression. The Italian translation of the PES-NWI showed a five-factor structure, and Cronbach's alpha of the factors ranged between 0.80 and 0.92. Logistic regression showed that the PES-NWI was positively related to job satisfaction (odds ratio = 10.3; CI 8.62-12.35) and negatively related to intention to leave (odds ratio = 0.14; CI 0.12-0.16). The original five-factor structure of the PES-NWI was evident in the present study, albeit with some different factor loadings. The Italian version of the PES-NWI can be used by nurse managers to tackle the workforce issues related to nurses' work environments in a major European country.

Psychometric evaluation of the inventory of dimensions of emerging adulthood (IDEA) in China

Background/ObjectiveEmerging adulthood (EA, age range between 18 to 29 years) is an important developmental stage that is characterized by marked social and psychological changes. Currently, its developmental features are quantified by the Inventory of the Dimensions of Emerging Adulthood (IDEA) but a validated Chinese version of this questionnaire (IDEA-C) is lacking. Thus, this research, which consists of two consecutive studies, aimed to investigate the psychometric properties of the translated IDEA in a Chinese sample of emerging adults. MethodFirstly, a forward-backward translation of the IDEA-C scale was conducted. Item analysis and exploratory factor analysis were performed in Sample 1a (n = 2438), followed by structural validity test in Sample 1b (n = 2461). Concurrent validity and internal consistency were evaluated in Sample 1(n = 4899). Finally, test-retest reliability was tested in Sample 2 (n = 185). Then, the second study aimed to test the factor structure proposed by study 1 in the non-student sample (n = 2200) by confirmatory factor analysis. In addition, the second study also investigated whether the attainment of college education influenced the EA experience of non-student emerging adults in China. And the association was examined between the socioeconomic status of emerging adults and the subscales of IDEA. ResultsIn the college sample, the IDEA-C scale presented a four-factor structure different from the original five-factor structure (χ2(190)=1116.84, p < 0.001; CFI = 0.97; TLI = 0.96; SRMR = 0.039; RMSEA = 0.050 [90%CI=0.047-0.052]). In addition, IDEA-C exhibited good internal consistency reliability (Cronbach's alpha >0.77), test-retest reliability (r>0.49, p < 0.01) and concurrent validity. And the CFA in non-student sample also showed an adequate fit indices (χ2(158) =710.10, p < 0.001, TLI=0.93, CFI=0.94, SRMR=0.038, RMSEA=0.04 [90%CI=0.037-0.040]) and an adequate internal consistency (Cronbach's alpha >0.64) and test-retest reliability (r>0.43, p < 0.01). ConclusionThe results of the present study confirmed that the Chinese version of the IDEA is found to be valid for measuring psychological characteristics of EA in Chinese-speaking samples of emerging adults.

Factor Structure and Measurement Invariance Across Age, Gender, and Clinical Status of the Screen for Children Anxiety Related Emotional Disorders

Abstract: The purpose of this study was to examine evidence of reliability, validity, and equity, for the Romanian version of The Screen for Child Anxiety Related Emotional Disorders (SCARED), the 41-item child- (1,106 children and adolescents ranging from 9 to 16 years old) and parent-ratings (485 parents). Both versions of the instrument showed moderate to high internal consistency, with most subscales reaching acceptable levels. Results showed support for the original five-factor structure of the scale. Positive correlations with other measures of anxiety symptoms, such as The Penn State Worry Questionnaire, The Social Anxiety Scale for Adolescents, The Children’s Automatic Thoughts Scale, whereas weak correlations with the syndrome scales for rule-breaking and aggressive behavior of the Youth Self-Report, respectively, Child Behavioral Checklist have demonstrated similar construct validity for the Romanian version of the scale as compared to the original one. Also, strict measurement invariance across age, gender, and clinical status was established. The current research provides evidence of reliability, validity, and equity for SCARED, arguing for its utility as a screening instrument for anxiety symptoms. Implications for theory, assessment, and future research are discussed.

ADAPTATION AND VALIDATION OF FIVE FACTOR MINDFULNESS QUESTIONNAIRE

The mindfulness approach, which in recent years has been actively integrated into daily life and clinical psychological practice, has shown its high effectiveness in reducing stress, overcoming symptoms of anxiety, anxiety, depression, burnout, and other psychological difficulties. To date, many techniques have been developed to measure this ability, which is important for assessing the initial human condition and the effectiveness of therapeutic effects. The article reflects the results of adaptation and validation of the Ukrainian version of the English-language questionnaire R. Bayer and co-authors - "Five-Facet Mindfulness Questionnaire (FFMQ). The analysis of psychometric properties of the Ukrainian version of the questionnaire (internal consistency, correlation of scales, constructive validity) is presented, the factor structure and interrelations of various aspects of awareness and indicators of mental health are analyzed. The adapted technique showed very good results during the validation - the original five-factor structure was reproduced with the same factors as the original, the scales of which showed high reliability. The adaptation of the method was carried out in accordance with all standard requirements for the adaptation of foreign language psychodiagnostic tools. The study involved 253 people.

The Modified E-Cigarette Evaluation Questionnaire: Psychometric Evaluation of an Adapted Version of the Modified Cigarette Evaluation Questionnaire for Use With Adults Who Use Electronic Nicotine Delivery Systems.

The subjective experience of positive and negative effects likely contributes to e-cigarette use, and the Modified Cigarette Evaluation Questionnaire (MCEQ) previously has been adapted to assess the reinforcing and aversive effects of vaping. However, the psychometric properties of the MCEQ for use with e-cigarettes have not been established. We examined the psychometric properties of the Modified E-cigarette Evaluation Questionnaire (MECEQ) within a sample of 857 adults who recently used e-cigarettes in a smoking cessation attempt (52.4% male; 40.84 [12.25] years old; 62.8% non-Hispanic white; 22.4% daily e-cigarette users). Analyses included confirmatory factor analysis of the original structure, exploratory/confirmatory factor analyses to identify the alternate latent structure(s), internal consistency, measurement invariance, between-group differences, and test-criterion relationships with vaping-related outcomes. The original five-factor structure and a novel four-factor structure were supported. Each was scalar invariant across several participant subgroups (eg, current smoking status, daily vaping status). All multi-item subscales were internally consistent. Both versions detected several between-group differences. For example, current smokers reported stronger aversive effects than did exclusive e-cigarette users. Finally, adjusted relationships between both MECEQ versions and vaping-related outcomes provided evidence for concurrent validity. The five-factor and four-factor versions of the MECEQ evidenced good-to-excellent internal consistency, scalar measurement invariance, and concurrent relationships with vaping-related outcomes. While both versions could be used to assess subjective vaping effects in adults with histories of cigarette smoking and vaping, additional research is needed to evaluate the applicability of these factor structures to other samples (eg, e-cigarette users with no smoking history, youth). Although the MCEQ has been adapted in previously published studies to assess the subjective reinforcing and aversive effects of vaping, the psychometric foundation necessary for doing so had not been established. We showed that the MECEQ can be scored using the original five-factor MCEQ format or using a newly identified four-factor structure. Both versions evidenced construct validity, internal consistency, measurement invariance (permitting between-group comparisons), and concurrent validity with vaping-related outcomes. Results strengthen the interpretability of previously published work using the five-factor MCEQ structure and provide an alternative scoring approach for vaping-specific subjective effects.

Different Strokes for Different Folks? Examining a New Measure for Age-Relative Sexual Attitudes

Recent research suggests increasingly permissive attitudes towards sexual activity in later life. Harboring more conservative beliefs especially as one reaches older age, however, may translate into how one views and navigates sexual health changes. A sample of participants (N = 706; Mage = 52.72 years, SD = 9.57, range = 36-79; 60.8% male) was recruited through Amazon’s Mechanical Turk to complete a survey on sexual beliefs about age and aging. Participants completed two versions of the Relative Sexual Attitudes Scale (RASA), wherein they were prompted to consider either “someone their own age” or “an older person” in response to items assessing sexual attitudes. Multi-group confirmatory factor analysis was used to confirm the original five-factor structure, reduce the total items from 31 to 25, and establish measurement equivalence for the 36-54 year-old and 55+ year-old samples. Through a series of profile analyses investigating each subscale, scores did not significantly differ between the two prompts, although significant age-group differences were found with the 36-54 year-old age group reporting more open attitudes than the 55+ year-old age group across all subscales, except the traditional mores subscale. Sexual attitude subscale scores also differed by gender, engagement in partnered sexual activity, and whether one had spoken to a health professional about their sexual health in the past year. The findings support use of the RASA for adults 36 and older and highlight applications to understanding differences in sexual health into later life.

Different Strokes for Different Folks? Examining a New Measure for Age-Relative Sexual Attitudes

Fear of developing dementia is common and has been linked to delays in seeking medical attention (Arlt et al., 2008). We used data from 320 adults (M age = 39.7, SD = 12.3, range 20 – 70) to examine the ways in which objective knowledge and subjective experience with dementia influence positive attitudes toward persons with dementia. We further examined how these constructs related to fear of developing dementia. A path analysis showed the model fit the data well, X2 (DF = 1) = 0.74, p = .39; RMSEA < .001. Objective knowledge and subjective experience were significantly associated with higher allophilia. Allophilia and subjective experiences were associated with personal fear. However, allophilia decreased fear, whereas subjective experiences were associated with increased fear of developing dementia. To clarify these findings, we conducted a moderated regression in which age was examined as a moderator of the relation between allophilia and fear as well as the relation between subjective experience and fear. Significant results were obtained [F (5, 294) = 10.41, p < .001; R2 = .15]. Age moderated the effect of personal experience on fear. Stronger effects emerged for adults in their 20s compared to those in their 40s; similarly, age exerted a stronger effect for those in their 40s than for those in their 50s. Regarding age effects on the relation between allophilia and fear of dementia, for adults in their 20s and 40s, allophilia reduced fear of dementia. For adults in their 50s, allophilia was associated with higher fear.

Health-related quality of life in women with endometriosis: psychometric validation of the Endometriosis Health Profile 30 questionnaire using confirmatory factor analysis.

STUDY QUESTIONWhich of the competing models of the Endometriosis Health Profile 30 Questionnaire (EHP-30) factor structure is best supported by confirmatory factor analysis (CFA)?SUMMARY ANSWERFindings support a five-factor first-order model of the EHP-30, thereby lending support to the model originally suggested by the questionnaire developers.WHAT IS KNOWN ALREADYEndometriosis has a negative impact on quality of life, and measures specifically developed to address this impact, such as the EHP-30, are vital in research and disease management. Previous studies have found different models of the EHP-30 factor structure, and generated uncertainty regarding how to use the questionnaire. CFA can be applied to compare competing factor models and determine the underlying structure of a questionnaire.STUDY DESIGN, SIZE, DURATIONThis cross-sectional multicenter study included 304 women with endometriosis recruited from three different public health service endometriosis clinics (referral centers for treatment of severe endometriosis) and the Danish Endometriosis Patients Association from 2014 to 2015.PARTICIPANTS/MATERIALS, SETTING, METHODSDiagnosis of endometriosis was confirmed in medical records for 84.2% and by histology for 66.8% of participants. Questionnaires (the licensed Danish version of the EHP-30) were sent by post two times with a 6- to 12-week interval. CFA was used to examine construct validity and Bland–Altman plots to examine test–retest reliability and the convergent validity with the Short Form 36 version 2.MAIN RESULTS AND THE ROLE OF CHANCEResponse rate was high (87.6%). CFA supported the original first-order five-factor structure of the EHP-30, and thereby, the use of five separate scale-scores in clinical and research practice. Visual inspection of Bland–Altman plots suggested excellent test–retest reliability of the EHP-30 and supported the use of a disease specific quality of life instrument for women with endometriosis.LIMITATIONS, REASONS FOR CAUTIONDiagnosis could not be confirmed through histology data in 33.2% of participants. However, subgroup analyses based on women with confirmed histology only, yielded similar results. Data related to menstrual cycle stage and the use of hormonal and pain medication during questionnaire completion were not collected. A larger study, including data from different countries on different continents, would be better designed to exclude potential population bias.WIDER IMPLICATIONS OF THE FINDINGSEHP-30, with its original five-factor structure, appears to be a valid, stable, and specific quality of life measure for women with endometriosis. It seems easy to understand, quick to administer, and importantly, scoring might be unaffected by cyclical/menstrual pain symptoms related to endometriosis. The finding of a five-factor model from different studies across several countries supports the crosscultural validity of the EHP-30.STUDY FUNDING/COMPETING INTEREST(S)This work was supported by the Danish Endometriosis Association, which is a nongovernmental organization run by women with endometriosis and by a scholarship from the Health Research Fund of Central Denmark Region. The authors have no conflicts of interest.TRIAL REGISTRATION NUMBERThe Danish Data Protection Agency (J.nr: 2013-41-2264).

Grief-related beliefs in shidu parents with and without prolonged grief disorder: Psychometric properties of a Chinese version of the Typical Beliefs Questionnaire.

The Typical Beliefs Questionnaire (TBQ) assesses common grief-related cognitions, which demonstrated satisfactory psychometric properties in a treatment-seeking sample with prolonged grief disorder (PGD). Chinese shidu parents (bereaved parents over the age of 49 who have lost their only child) are at a high risk of PGD. The current study aimed to examine psychometric properties of the Chinese version of the TBQ (TBQ-C) in a community sample of shidu parents with and without PGD, to compare this to the original validation clinical sample in the United States bereaved of any close relationship and to consider its use as a clinical tool. We examined the rate of positive endorsement, factor structure, internal consistency and validity of the TBQ-C in 310 community-based shidu parents (including 102 who met the criteria for PGD). Results showed that the rate of positive endorsement for each item ranged from 7.2% to 48.6% among non-PGD participants and from 20.6% to 92.2% among PGD participants. Confirmatory factor analysis indicated that the original five-factor structure fit both the non-PGD and PGD shidu parents. The TBQ-C showed acceptable internal consistency and satisfactory convergent and concurrent validity in both groups. It had good discriminant validity and can be helpful in distinguishing shidu parents with and without PGD. The TBQ-C can be used to investigate common grief-related beliefs that may be problematic for both shidu parents with and without PGD.