Confirmatory Factor Analysis Fit Indices Research Articles

Turkish Validity and Reliability Study of the Breast Cancer Survivor Self-Efficacy Scale.

This study aims to adapt the "Breast Cancer Survivor Self-Efficacy Scale" to Turkish culture and conduct a Turkish validity and reliability study. The research was conducted using a methodological design. The research sample consisted of 201 women who were diagnosed with breast cancer and had no communication problems were included in the study. Research data were collected from May 25 to August 1, 2022. In data collection, a descriptive information form and Breast Cancer Survivor Self-Efficacy (BCS) scale were used. Language equivalence, content validity, exploratory factor analysis, and confirmatory factor analysis (CFA) of the scale were performed. Cronbach's α coefficient and item-total score correlation were evaluated to determine the reliability of the scale. For CFA, one of the concordance models of structural equality, LISREL, was used. The mean age of the patients participating in this study was 55.75 ± 11.76 years. The mean time since the first diagnosis was determined as 57.19 ± 63.40 months. As a result of the assessments and analyses conducted, the content validity of the scale was found to be 1.0. After the explanatory factor analysis, it was determined that the scale consisted of 10 items and two factors and explained 47.08% of the total variance. Kaiser-Meyer-Olkin value of 0.73 and Bartlett's test (χ2=484.057; p = .000) value were also found to be statistically significant. Total Cronbach's coefficient of the scale was .71, while Cronbach's coefficient was .73 for sub-factor Coping, and Cronbach's coefficient was .60 for sub-factor help-seeking. Confirmatory factor analysis fit indices were found as χ2/df: 1.59, RMSEA: 0.055, GFI: 0.95, AGFI: 0.92, CFI: 0.97, NFI: 0.92, NNFI: 0.96. It is concluded that the "Breast Cancer Self-Efficacy Scale" for women who have survived breast cancer is a valid and reliable measurement tool for cancer patients.

Developing a Health Belief Model Scale for Smoking Behaviour During Pregnancy: Validity and Reliability Study

Objective: The Health Belief Model, which is one of the most frequently used models in explaining health behaviours, reveals the determinants of performing preventive health behaviours. Since our perceptions play an active role in changing a behaviour, a measurement tool is needed to evaluate the pregnant woman perceptually within the scope of HBM. Our study was conducted to analyze the perceptions of pregnant women about quitting smoking by developing a scale within the scope of Health Belief Model and analyze the validity and reliability of the scale within Turkish context. Methods: In the methodological study, which was conducted at the gynecology polyclinic of an university hospital between 15.05.2018 - 30.04.2019, the data were collected by applying a questionnaire to pregnant women who smoked at least one cigarette per day. The sample of the study consists of 289 pregnant women who applied to the clinic for routine pregnancy follow-ups. The content validity of the scale was evaluated by taking the opinions of nine experts in the field of public health nursing. Descriptive and confirmatory factor analysis methods were used in the analysis of the data. Results: 24.6% of the participants are high school graduates, 56.7% are not employed, 49.1% have a history of unplanned pregnancy, and 1% have started smoking during their current pregnancy. Cronbach Alpha values of the sub-dimensions of the scale ranged between .90 and .70, respectively. Confirmatory factor analysis fit indices were found as RMSEA = 0.066, CFI = 0.904 and NFI = 0.842. Conclusion: The scale is a valid and reliable measurement tool for measuring perceptions of pregnant women about smoking cessation behavior smoking behaviours. It is recommended to use the assessment of perceptions of smoking cessation behavior among pregnant smokers.

Construct validity of the 12-item Short Form Health Survey (SF-12) version 2 and the impact of lifestyle modifications on the health-related quality of life among Indian adults with prediabetes: results from the D-CLIP trial.

This study aimed to validate the factor structure of the 12-item Short-Form (SF-12) health-related quality of life (HRQOL) survey for Indian adults and assess the impact of lifestyle modification on the SF-12 of Indian adults with prediabetes. To validate the context-specific construct of the SF-12, two-factor confirmatory factor analysis (CFA) was performed using data from 1285 adults residing in Chennai, India, who screened for the Diabetes Community Lifestyle Improvement Program (D-CLIP). D-CLIP was a randomized controlled trial of 578 participants with prediabetes (283 treatment, 293 control), focusing on the effect of lifestyle modifications on the prevention of diabetes. Physical and mental component scores (PCS and MCS) were computed by using CFA standardized factor loadings. Multiple linear regression was subsequently conducted to estimate the effect of lifestyle modification on post-study changes of PCS and MCS among D-CLIP participants. Cronbach's alpha and CFA fit indices demonstrated acceptable reliability and model fit of the SF-12 for Indian adults. The intervention group showed greater mean change in PCS after study participation compared to the controls (1.63 ± 0.82, p = 0.046); no significant difference was observed for MCS between two groups (1.00 ± 0.85, p = 0.242). The study confirmed that the SF-12 is suitable for assessing the physical and mental health dimensions of HRQOL for Indian adults. Our findings suggest that the benefits of diabetes prevention lifestyle modification strategies may primarily enhance the physical well-being of adults with prediabetes. Further studies validating the SF-12 in a broader Asian Indian population are needed. Clinicaltrials.gov, NCT01283308.

A short version of odor awareness scale (OAS-6)

People differ in their awareness of odors in the environment. This metacognitive ability can be measured with The Odor Awareness Scale (OAS). However, the OAS consists of 32 items what makes it difficult to use in research where awareness of odors is not the main variable of interest. This study introduces a shortened version of the OAS. Participants completed either the original OAS (n = 268, 72% women) or the shortened OAS-7 version comprising 7 items selected from the original scale (n = 220, 61% women). Based on the validation analyses, one item has been further deleted due to low factor loading. The obtained OAS-6 showed good psychometric properties as established with: confirmatory factor analysis fit indices (χ2 = 17.30, p = 0.044, CFI = 0.977, TLI = 0.962, RMSEA = 0.065, SRMR = 0.039), high reliability (Cronbach’s α = 0.80, McDonald’s ω = 0.81), and temporal stability (test–retest correlation after 6 weeks: r = 0.89). The OAS and OAS-6 showed similar correlations with Individual Significance of Olfaction Questionnaire total score and subscales. On average, women scored higher on OAS-6 than men, mirroring the pattern observed in the OAS. In summary, OAS-6 proves to be a reliable and valid tool for assessing odor awareness. Its quick completion time (within 2 min) opens venues for its application in diverse studies exploring metacognitive aspects of olfactory perception, including investigations into the interplay between odorous environments and human health or in clinical research.

Reliability and validity of the Patient Health Questionnaire-4 scale and its subscales of depression and anxiety among US adults based on nativity

BackgroundThe burdens of anxiety and depression symptoms have significantly increased in the general US population, especially during this COVID-19 epidemiological crisis. The first step in an effective treatment for anxiety and depression disorders is screening. The Patient Health Questionnaire-4 (PHQ-4, a 4-item measure of anxiety/depression) and its subscales (PHQ-2 [a 2-item measure of depression] and Generalized Anxiety Disorder [GAD-2, a 2-item measure of anxiety]) are brief but effective mass screening instruments for anxiety and depression symptoms in general populations. However, little to no study examined the psychometric properties (i.e., reliability and validity) of the PHQ-4 and its subscales (PHQ-2 and GAD-2) in the general US adult population or based on US nativity (i.e., foreign-born vs. the US-born). We evaluated the psychometric properties of the PHQ-4 and its subscales in US adults, as well as the psychometric equivalence of the PHQ-4 scale based on nativity.MethodsWe conducted a cross-sectional survey of 5,140 adults aged ≥ 18 years. We examined the factorial validity and dimensionality of the PHQ-4 with confirmatory factor analysis (CFA). A multiple-group confirmatory factor analysis (MCFA) was used to evaluate the comparability of the PHQ-4 across nativity groups. Reliability indices were assessed. Also, the scales’ construct validities were assessed by examining the associations of both the PHQ-4 and its subscales’ scores with the sociodemographic characteristics and the 3-item UCLA Loneliness scale.ResultsThe internal consistencies were high for the PHQ-4 scale (α = 0.92) and its subscales of PHQ-2 (α = 0.86) and GAD-2 (α = 0.90). The CFA fit indices showed evidence for the two-factor structure of the PHQ-4. The two factors (i.e., anxiety and depression) were significantly correlated (r = 0.92). The MCFA demonstrated measurement invariance of the PHQ-4 across the nativity groups, but the model fits the data better in the foreign-born group. There were significant associations of the PHQ-4 scale and its subscales’ scores with the sociodemographic characteristics and the UCLA Loneliness scale (all p < 0.001).ConclusionsThe PHQ-4 and its subscales are reliable and valid measures to screen anxiety and depression symptoms in the general US adult population, especially in foreign-born individuals during the COVID-19 pandemic.

Turkish Adaptation and Validation of the Adolescent Sleep-Wake Scale

Background and Objective The aim of our study was to evaluate the psychometric properties of the ASWS in a Turkish adolescent sample.Methods Two hundred and two Turkish high school students participated in our study. We used exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) for factor structure. McDonald’s ω and Cronbach’s α values were utilized for reliability analyses. We examined convergent validity by calculating correlations between the ASWS and sleep parameters and perceived stress scale scores.Results A 3-factor structure was detected, explaining 66.20% of the total variance with an eigenvalue above 1 in EFA. The 3-factor structure was confirmed with good fit indices in CFA. The scale demonstrated solid internal consistency (α = 0.844, ω = 0.832). We found a significant negative correlation between the ASWS and perceived stress, sleep latency, wakefulness after sleep onset, and ability to sleep after wakefulness at night.Conclusions The Turkish ASWS was found to be a valid and reliable instrument.

The occupational burnout among medical staff with high workloads after the COVID-19 and its association with anxiety and depression

ObjectiveAfter the end of COVID-19, medical staff were immediately faced with a high workload, leading to widespread occupational burnout. This study aims to explore the level and influencing factors of burnout among medical staff during this period, as well as its relationship with anxiety and depression.MethodsThe participants’ levels of burnout were assessed using Maslach Burnout Inventory-Human Services Survey (MBI-HSS), and the reliability and validity of the questionnaire were evaluated through Cronbach’s α and Confirmatory Factor Analysis (CFA). Independent sample t-test, chi-square test, and Pearson analysis were employed to determine the correlation between two sets of variables. Univariate and multivariate logistic regression analyses were conducted to identify significant factors influencing burnout. Finally, nomograms were used to predict the probability of burnout occurrence.ResultsThis study collected a total of 1,550 questionnaires, and after excluding 45 questionnaires that were duplicates or incomplete, a sample of 1,505 (97.1%) participants were included in the final statistical analysis. Both Cronbach’s α and the fit indices of CFA demonstrated excellent adaptability of the Chinese version of MBI-HSS in this study. The overall prevalence rates for emotional exhaustion (EE), depersonalization (DP), and diminished personal accomplishment (PA) were 52.4, 55.3, and 30.6%, respectively. Obtaining psychological support, health condition, relationship with family members, and insufficient sleep were identified as common contributing factors to burnout among medical staff. Additionally, age and promotion pressure were also associated with burnout among doctors, and exceeding legal working hours was an important factor for nurse burnout. The C-index for the nomograms predicting burnout among doctors and nurses was 0.832 and 0.843, respectively. Furthermore, burnout exhibited a significant linear correlation with anxiety and depression.ConclusionAfter the end of COVID-19, medical staff in high workload environments were facing severe burnout, which might lead to anxiety and depression. The occupational burnout of medical staff needed to be taken seriously and actively intervened.

Validity and reliability of the Persian version of MISSCARE survey

Background: The MISSCARE survey is a useful instrument measuring the amount and type of missed nursing care and its important reasons, developed by Kalisch and Williams in 2009 and revised in 2019. Objective: The present paper aimed to report the psychometric properties of part A (missed nursing care) and part B (reasons for missed nursing care) of the MISSCARE tool translated into Persian. Materials &amp; Methods: A Persian version of the MISSCARE tool were evaluated by a panel of experts, and the psychometric properties were determined with 326 nurses randomly selected from non-emergency wards of seven educational and medical centers in Rasht, North of Iran. Nurses completed the instruments from January to March 2021. Content validity was evaluated by calculating content validity index (CVI). Confirmatory factor analysis (CFA) was used to assess construct validity. Internal consistency (reliability) was measured using Cronbach's alpha coefficient. Results: CVI was measured 0.82 and 0.79 for parts A and B of the survey. The fit indices of CFA indicated the acceptable fit for the measurement model of part B (missed nursing care reasons). Also, factor loadings of items on three factors of labor, material and communication confirmed the structural validity of part B of the survey. Cronbach’s alpha coefficients for parts A and B were 0.991 and 0.994 in whole, and Cronbach's alpha coefficient for three factors of part B ranged from 0.831 to 0.936 confirmed their reliability. Conclusions: The Persian version of the MISSCARE tool is valid and reliable for measuring missed nursing care and its reasons. It can be used by nursing authorities for evaluation purpose in Iranian hospitals.

Validation of the Arabic version of the Muscle Dysmorphic Disorder Inventory (Ar-MDDI) among Lebanese male university students

BackgroundTo date, the vast majority of research on disordered eating symptomatology and body image disturbances from the Arab world have been performed exclusively among women; and mainly used thinness-oriented measures that are not sensitive to detect muscularity-oriented symptoms, which are more evident in males. Therefore, the objective of our study was to validate the Arabic version of the Muscle Dysmorphic Disorder Inventory (Ar-MDDI), in order to make it accessible for Arabic-speaking populations.MethodsUsing a snowball sampling technique, men university students (n = 396) from multiple universities in Lebanon filled the survey in this cross-sectional designed study (January–May 2022). A soft copy of the questionnaire was created using google forms software, and sent to participants through the different social media platforms such as Facebook, Instagram, and WhatsApp. We used the Muscle Dysmorphic Disorder Inventory to assess Muscle Dysmorphia, along with the Big Three Perfectionism Scale to assess perfectionism and Eating Attitude Test (EAT) to evaluate the inappropriate eating attitudes. To explore the factor structure of Ar-MDDI, we computed a principal-axis Exploratory Factor Analysis (EFA) with the first split-half subsample using the FACTOR software. We used data from the second split-half to conduct a Confirmatory Factor Analysis (CFA) using the SPSS AMOS v.29 software. Pearson correlation test was used to test the convergent and divergent validity of the Ar-MDDI scale with the other scores included in the study.ResultsThe results of the EFA revealed three factors, which explained 57.68% of the common variance: Factor 1 = Appearance intolerance, Factor 2 = Drive for size, and Factor 3 = Functional impairment. The CFA fit indices of the three-factor model of the Ar-MDDI scale showed good results. Moreover, 254 (64.1%) of the participants had inappropriate eating attitudes (EAT scores ≥ 20). Indices suggested that configural, metric, and scalar invariance was supported according to eating attitudes. No significant difference between participants with appropriate versus inappropriate eating attitudes in terms of functional impairment, drive for size and appearance intolerance. Perfectionism scores correlated positively with the Ar-MDDI, which suggests divergent validity.ConclusionOur findings revealed that the validation of the Arabic scale yielded excellent properties, preliminarily supporting its use for the assessment of muscle dysmorphia among Arabic-speaking university men. This would hopefully allow for its timely detection and management in Arab clinical settings and encourage cross-cultural research on this topic.

Revalidation of preservice physical education teacher's teacher identity scale in Chinese physical education student teachers.

Teacher identity (TI) is a crucial aspect to pre-service physical education teachers (PPETs) to becoming high quality teachers and plays an important role in their career choice. Thus, a deep understanding of their TI may help improve the quality of future PE teachers. This study aimed to provide further evidence of reliability and validity for Preservice Physical Education Teacher's Teacher Identity Scale (PPET-TI scale). The study went through a three-stage development process: (a) examining the content validity of original scale; (b) data collection using a sample of student teachers in physical education; (c) re-test the reliability and validity of the scale developed by Zhang. After having re-examined the content validity, the domain of affects was deleted. The modified scale then consisted of the three domains (i.e., value and expectation, perceived confidence of teaching PE, and professional growth). A total of 944 physical education student teachers in China participated in the study. Confirmatory factor analysis (CFA) was employed to investigate the construct validity, the results suggested the data did not fit the original model. After the unfitted item was excluded. All CFA fit indices were within the acceptable range. Reliability of the scale was then examined by calculating G-C alphas. The alpha values were within the acceptable range. The modified model was reliable and valid. The revalidation of the scale provided more us with a scale that could produce reliable and valid score measuring PPETs' TI.

Validation of Perceived Academic Support Questionnaire (PASQ): a study using a sample of Dominican Republic high-school students

The influence of academic support on students’ academic and personal development has been previously demonstrated. The objective of this study was to present a validation of the Perceived Academic Support Questionnaire (PASQ). This scale has three dimensions: academic support from (1) teachers, (2) family, and (3) peers. For the reliability analysis, we estimated the Cronbach alpha and Composite Reliability Indices (CRIs). Factorial validity was assessed by confirmatory factor analysis (CFA) and external validity was tested via a structural equation model in which the dimensions of academic support predicted academic motivation. The CFA fit indices showed very good fit to the data, supporting the theoretically proposed three-factor structure. The reliability indices, considering Cronbach alpha and CRI, were adequate for all dimensions and the predictive model fit was satisfactory. Teacher and parental academic support had a positive impact on academic motivation. On the contrary, a negative relationship between peer support and academic motivation was found. The evidence provided supports for the use of the PASQ as a brief academic support scale in future research.

Çocuk Hakları Temelli Sınıf Ölçeğinin Geliştirilmesi

The aim of the present study was to develop the Children’s Rights-Based Classroom Scale. The participants of the study were comprised of 451 classroom teachers working at 12 primary schools in the Gaziantep province selected via cluster sampling method. Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were conducted for attaining the construct validity of the scale. The scale structure consisting of four factors and 21 items was obtained as a result of EFA. It was identified that these four factors explain 76.217 % of the total variance. Of the CFA fit indices, GFI(.90), AGFI(.87), SRMR(.060) and NFI(.94) were at acceptable levels, X2/sd (CMIN/DF) (1.354), CFI(.98), IFI(.98), RMSEA(.042), were at perfect fit levels. The Cronbach Alpha value for the total scale was calculated as .89. The Cronbach Alpha values for the sub-factors of the scale were calculated as .943, .905, .917 and .934 for protection-support-communication, participation, environmental arrangements and teaching-learning process respectively. It can be stated based on the findings of the present study that a valid and reliable scale has been developed that enables the multi-dimensional assessment of the children’s rights-based structure of primary school classrooms.

Predictors of Workplace Substance Reuse among Patients with Alcohol or Illegal Substance Use Disorder in the Workplace

Substance and alcohol use in the workplace have become a global health burden; however, the etiologies have seldom been explored. The aims of this study were to develop a Workplace Substance Reuse Questionnaire (WSRQ) to measure the multidimensional factors associated with the reuse of alcohol or illegal substances in the workplace. The predictors of reuse were also investigated. The WSRQs for alcohol (WSRQ-Alc) and illegal substances (WSRQ-Sub) were composed of 15 and 13 items, respectively. Factors associated with workplace substance reuse included workplace environment, workload, social interaction in the workplace and other cues. Construct validity and reliability were performed to verify the questionnaires. Multivariate linear regression was conducted to estimate the associations between the factors and WSRQ score. A total of 90 patients with substance or alcohol use disorder were recruited. The results demonstrated that the WSRQ-Alc and WSRQ-Sub had acceptable reliability, with variance of 76.4% and 75.4%, respectively. The confirmatory factor analysis fit indices also indicated the adequacy of the model. A longer duration of alcohol use (β = 0.44; p = 0.002) and higher frequencies of changing job (β = 0.32; p = 0.027) and working part time (β = 0.32; p = 0.028) were significantly associated with higher WSRQ-Alc score. Our results highlight the importance of abstinence treatment and job referral for individuals with alcohol or substance use. Further studies are warranted to help extend the applicability and generalizability of the WSRQ.

Uzaktan Eğitime Yönelik Bir Tutum Ölçeği Geliştirme Çalışması

The overall aim of this study is to develop “an attitude scale towards distance education", the validity and reliability of which can be used to measure the attitudes of the teachers who have experienced distance education systems especially during the coronavirus pandemic. For this purpose, first of all, 20 teachers who worked actively in distance education systems during the emergency remote education period were asked to write an essay on their feelings and thoughts about distance education. Then, an item pool consisting of 69 items was created examining these essays written by the teachers and reviewing the relevant literature in detail, Next, these items were presented to the group consisting of assessment and evaluation experts and field experts, and a draft scale form with 29 items was prepared in line with the opinions of the experts. The data of the study were obtained from three different study groups. The data were collected from 250 participants for the Exploratory Factor Analysis (EFA), from 171 participants for the Confirmatory Factor Analysis (CFA), and from 45 participants for the reliability study. As a result of EFA, the scale structure consisting of 16 items and 3 subdimensions which explain 61% of the total variance and whose factor loading values range between 0.84 and 0.54 emerged. Then, CFA was applied to the 16 items that represent the dimensions of "being satisfied with distance education" (8 items), "being active in distance education" (4 items), and "adopting distance education" (4 items) obtained as a result of EFA. It was concluded that this structure was also confirmed according to the CFA fit indices (X2/sd=1.92, CFI=0.95, GFI=0.88, IFI=0.95, RMSEA=0.007). In the reliability analyses of the ATDES, it was observed that the Cronbach Alpha coefficient varied between 0.77 and 0.92 for the overall scale and its sub-dimensions, and the test-retest reliability ranged between 0.72 and 0.98. In conclusion, it is determined that the ATDES, developed within the scope of this study, is a valid and reliable attitude scale that can be used to measure teachers' attitudes towards distance education.

Validity and reliability of the Persian version of the sedentary behavior questionnaire among office employees

ABSTRACT Objectives. This study aimed to evaluate the validity and reliability of the Persian version of the sedentary behavior questionnaire (SBQ) among university office employees in Kermanshah province in the west of Iran. Methods. A validation study was performed among 701 university office employees in Kermanshah province. The content validation process was conducted using interviews with content and lay experts. The intraclass correlation coefficient (ICC) was calculated as test–retest reliability. In addition, exploratory and confirmatory factor analyses were used to assess the validity of the questionnaire structure. Results. The scale content validity indices using two general agreement approaches and the mean approach were 88.88 and 97.77%, respectively. The ICC was estimated at 1.00 (95% confidence interval [0.99, 1.00]). The exploratory factor analyses suggested nine-factor solutions, and in the independent sample the confirmatory factor analysis fit indices showed that the model had acceptable fit to the data. Conclusion. The Persian version of the SBQ had acceptable reliability and validity for assessing sedentary behavior (SB) among office employees. This questionnaire is a simple and self-report tool for measuring SB in daily life and would be useful in the design and evaluation of preventive programs among administrative staff and for high-risk population surveillance.

Reliability and validity study of the Indonesian Smartphone Application-Based Addiction Scale (SABAS) among college students

Background/ObjectiveSmartphone addiction, smartphone dependence, and compulsive smartphone use all describe similar phenomena that can cause problems in everyday daily life in many countries worldwide. Most scholars agree that it is the applications on smartphones that individuals have problems with rather than the smartphone itself. For this reason, smartphone application-based addiction is an issue of concern and one instrument has been specifically developed to assess this risk, namely, the Smartphone Application-Based Addiction Scale (SABAS). Although the SABAS has been translated into a number of languages, it has not been translated or validated into Indonesian. MethodsThe SABAS was translated into Bahasa Indonesian utilizing a cross-cultural method to ensure its linguistic validity. The linguistic validity of the Indonesian SABAS was ensured using international standard translation guidelines. Moreover, reliability and validity testing of the translated Indonesian SABAS were carried out using Cronbach’s α, McDonald’s ω, confirmatory factor analysis (CFA), and correlations with psychometric scales assessing psychological distress and nomophobia. ResultsUsing a sample of 458 participants (mean age = 22.46 years), reliability tests showed that the Indonesian SABAS was acceptable (Cronbach α = 0.74; McDonald’s ω = 0.79). Construct validity of the Indonesian SABAS was supported by satisfactory CFA fit indices; concurrent validity supported by good correlations with psychological distress (r = 0.50) and nomophobia (r = 0.61). ConclusionsThe Indonesian version of SABAS is valid and reliable to be used for assessing the risk of smartphone application-based addiction in college students.

Psychometric Properties of 20-Item and 10-Item Persian Versions of Drug Abuse Screening Test

Introduction: Substance use disorder is one of the most critical social problems in Iran. For this disorder, weneed a proper assessment tool based on our indigenous culture. Objective: This study assesses the factor structure and psychometric properties of 10-item and 20-item Persian versions of Drug Abuse Screening Tests (DAST-10 and DAST-20). Materials and Methods: In this cross-sectional study, we randomly selected 200 participants referred to addiction treatment centers in Rasht City, Iran. After translation to Persian and back-translation to English, the face and content validity of DAST-10 and DAST-20 Persian versions were evaluated using the opinions of a panel of expertsand calculatingthe content validity ratio and content validity index. Then, the construct validity was evaluated by Confirmatory Factor Analysis(CFA), the Cronbach α coefficient was used for assessing internal consistency, and the Intraclass Correlation Coefficient (ICC) was used for assessing test-retest reliability. Results: The Mean±SD age of participants was 39.02±11.67 years. The majority (50%) were in the age range of 30-50 years. Based on the CFA fit indices, the two instruments had a good fit to the data, confirming the theoretical model Root Mean Square Error of Approximation (RMSEA) (RMSEA for DAST-20=0.080; RMSEA for DAST-10=0.055). The Cronbach α values ​​of DAST-20 and DAST-10 were 0.772 and 0.749, respectively, indicating their good and acceptable internal consistency. Their test-retest reliability was reported at 0.997 and 0.995 based on the results of ICC, respectively. There was a strong and significant positive correlation between the scores of Persian DAST-20 and DAST-10 (r=0.851, P=0.001). Conclusion: The DAST-20 and DAST-10 Persian versions which after correcting the model using confirmatory factor analysis, they were studies in DAST-8 and DAST-16 have good validity and reliability and can be used for screening the possible involvement of drugs in Iranian samples.

The internal structure of Brazilian versions of disability questionnaires in patients with chronic low back pain: A cross-sectional study

BackgroundStructural validity refers to the degree to which the scores of a questionnaire or scale are an adequate reflection of the construct to be measured. The aim of this study was to perform the analysis of the structural validity of the Roland-Morris Disability Questionnaire (RMDQ), Oswestry Disability Index (ODI), Quebec Back Pain Disability Scale (QBPDS), and Bournemouth Questionnaire (BQ) in Brazilian respondents with chronic low back pain. MethodsA cross-sectional study was conducted. The sample was composed by respondents with non-specific chronic low back pain (score ≥3 points on the 11-point Numerical Pain Rating Scale). The internal structure (number of domains and items) of the Brazilian versions of the RMDQ, the ODI, the QBPDS, and the BQ were analyzed by the confirmatory factor analysis. ResultsTwo hundred and twenty-two patients were included. Most of the sample consisted of women and overweight. The RMDQ and ODI have a one-dimensional structure and acceptable values for all confirmatory factor analysis fit indices. The QBPDS with 4 domains and 20 items showed the best values of the fit indices. In addition, we did not identify an internal structure for the BQ supported by the confirmatory factor analysis. ConclusionThe ODI and RMDQ present valid internal structure with 1 domain (disability). The QBPDS has a valid internal structure with 4 domains (rest, prolonged postures, ambulation/reach, and bending/carrying). The BQ does not have a well-defined internal structure.

Knowledge, attitude, and practice towards COVID-19: Research to develop a measuring instrument

ObjectiveTo evaluate the knowledge, attitudes, and behaviors of individuals about COVID-19 and to develop a valid and reliable scale that can measure these items about COVID-19 and other similar pandemic processes. DesignMethodological scale study with a quantitative approach. SiteCarried out at the Uludağ University Family Health Center in Bursa, Turkey. Participants415 individuals in the first phase and 367 in the retest phase. InterventionsCarried out between March 1, 2021, and April 30, 2021. Main measurementsReliability and factor analyses were performed and validity was evaluated. In factor analysis, a scale with 4 factors and 30 questions was obtained. Confirmatory factor analysis (CFA) was applied to the factor scores of the scale. Factors were named A-General Culture, B-Mask, Distance and Cleanliness, C-Mental Status, and D-Way of Information. A 3-point Likert-type scoring system was created for the responses. ResultsCronbach's alpha value was 0.894. In factor modeling, 3 of the confirmatory factor analysis fit indices were good and 4 of them were acceptable, so our model was found to be appropriate. The scale was highly reliable, according to internal and external consistency coefficients. The scale was named the Turkey COVID-19 Attitude Scale. p values<0.05 were considered statistically significant. ConclusionsThe valid and reliable Turkey COVID-19 Attitude Scale, which we developed to evaluate the knowledge, attitudes, and behaviors of individuals about COVID-19, can be used to guide research during COVID-19 and future pandemics.

TPACK-21 Ölçeğinin Türkçe’ye Adaptasyonu: Geçerlik ve Güvenirlik Çalışması

This study aims to adapt the TPACK-21 (Valtonen et al., 2017) scale to Turkish. Based on the 21st century skills, this scale consists of 6-point Likert type items. Measuring the technological pedagogical content knowledge that teachers should have in order to integrate 21st century skills into their classroom settings will give an idea about whether they have the competencies recommended by the Ministry of National Education (2017). For the adaptation process, necessary steps were followed carefully by the researchers; permission, translation, pilot study, validity and reliability processes. The data were collected from 309 science and mathematics teachers in Turkey. For psychometric analysis of the scale, confirmatory factor analysis (CFA), item-total correlations for upper and lower groups according to 27% segment, and Cronbach's alpha reliability analysis were performed. According to the results, the adapted version of the scale was found as 6-factors and 37 items. Since the fit indices of CFA were found as acceptable values and Cronbach’s alpha coefficient was found as .97, the scale is valid and reliable. In addition, descriptive analysis was conducted according to demographic information.