Showing 10 results for Psychometric
N Bahrami, A Yaghoobzadeh, H Sharif Nia , Ma Soliemani, Aa Haghdoost,
Volume 12, Issue 2 (8-2016)
Abstract
Background and Objectives: Infertility is one of the most important crises in the lives of couples, which create psychological consequences beside the economic, social and individual problems,. Decreased sexual satisfaction is one of the consequences of infertility. Given the importance of this concept in the life of infertile couples, a tool to measure the sexual satisfaction of this group of people is necessary. Thus, the study aimed to assess the psychometric properties of the Persian version of the LSSQ in Iranian infertile couples in 2013.
Methods: In this methodological study, 150 Iranian infertile couples completed the 25-item Larson's sexual satisfaction questionnaire in Qazvin. Its reliability was determined by the calculation of Cronbach's alpha coefficient. Exploratory and confirmatory factor analyses were done by SPSS-AMOS22.
Results: The internal consistency of the sexual satisfaction questions estimated with Cronbach's alpha was more than 0.7. Exploratory factor analysis was used to evaluate the construct validity of the questionnaire which showed 4 factors (desire to have sexual relations, sexual attitude, quality of sex life, and sexual compatibility) with Eigen values greater than one. Four latent factors explained 53.21% of the total variance. Confirmatory factor analysis confirmed the final model of the construct of the questionnaire.
Conclusion: The results of study showed that the Persian version of LSSQ has a suitable validity and reliability in the Iranian infertile couples. Factor analysis confirmed that the LSSQ had a multi-dimensional structure.
Ma Soleimani, S Zarabadi Pour , Y Yaghoobzadeh, S Pahlevan Sharif , H Sharif Nia ,
Volume 14, Issue 1 (6-2018)
Abstract
Background and Objectives: The effect of heart diseases on the quality of life is the issue needs attention of health care providers. Improving quality of life is considered as the goals of rehabilitative therapies. This study conducted to evaluate the McGill Quality of Life Questionnaire in patients with heart diseases.
Methods: In this cross-sectional study, 500 patients with heart diseases were recruited from BooAli Sina Hospital and Velayat Hospital affiliated with Qazvin University of Medical Sciences from May to August 2016. The participants completed the McGill Quality of Life Questionnaire. The construct validity (including convergent and discriminant validity) and Reliability using the Cronbach’s alpha, theta, and McDonald's Omega of the McGill Quality of Life Questionnaire were evaluated. The structure of the Questionnaire was assessed using factor analysis.
Results: Three factors, including overall view of the quality of life, physical aspect, and psychological dimension, were extracted. Model fit indexes confirmed a good fit of he McGill Quality of Life Questionnaire (Comparative of Fit Index: CFI=.918, incremental fit index: IFI=.919, Adjusted Goodness of Fit Index: AGFI=.844, RMSEA=.079, Minimum Discrepancy Function by Degrees of Freedom divided: CMIN/DF=2.97, Parsimonious Normed Fit Index: PNFI=.681, Parsimonious Comparative Fit Index: PCFI=.709). Convergent and divergent validity, internal consistency, and construct reliability of the questionnaire were confirmed.
Conclusion: The findings revealed that the three-factor model of the McGill Quality of Life Questionnaire has satisfactory validity and reliability. Thus, this questionnaire can be used in future studies to assess the quality of life of patients with heart diseases.
Mm Vakili, L Babakhani, S Sharifi, A Moazen, Z Mehrabi, K Kamali, M Namadian, E Shakibazadeh,
Volume 14, Issue 2 (9-2018)
Abstract
Background and Objectives: The pandemic of HIV/AIDS is spreading rapidly in the Middle East, in particular in Iran. Designing an educational program involves assessment of the educational needs of people with valid and culture-based tools. This study was conducted with the aim of psychometric analysis of an instrument for assessment of HIV/AIDS knowledge based on the Iranian culture in different population groups.
Methods: In this psychometric analysis, 58 items related to AIDS knowledge were prepared based on a literature review. Then, the face validity and content validity of the instrument was determent by the impact item score, content validity ratio (CVR), and content validity index (CVI). The reliability of the scale was assessed by Cronbach’s alpha coefficient and test-retest.
Results: Based on face validity and content validity, the research scale had 44 items with an item impact score > 1.5, a CVR > 0.49, and a CVI > 0.79. The Scale had three sections, general knowledge about HIV/AIDS (9 items), knowledge about HIV transmission (25 items), and knowledge about HIV/AIDS prevention (10 items). The Scale also had a high reliability (Cronbach’s alpha coefficient=0.77-0.91, ICC=0.88)
Conclusion: The results of the study showed the instrument was a valid and reliable scale for measurement of knowledge about HIV/AIDS.
Mm Vakili, A Moazen, S Sharifi, K Kamali,
Volume 14, Issue 3 (12-2018)
Abstract
Background and Objectives: The results of recent studies suggest that model-based health education programs are more effective in changing health behaviors. Interventional programs based on health education theories can be used to explain individual and psychological behavioral determinants in order to reduce the risk of HIV/AIDS. This study was conducted with the aim of psychometric analysis of an HIV scale based on model, population and culture of Iran.
Methods: We used qualitative and quantitative methods during August 2015 to December 2017. The items were generated based on a literature review and interviews with an expert panel. After providing a primary list of the instrument items, we used content and face validity. The first step of the study was done in a sample of medical and non-medical college and high school student from Zanjan. The exploratory factor analysis, internal consistency reliability, and test-retest reliability of the scale were measured.
Results: Fifty-eight items were generated from interviews with experts and review of the literature. After measuring the face and content validity, the items decreased to 53 items. The exploratory factor analysis discovered five factors (perceived susceptibility, severity, benefits, barriers, and self-efficacy), including 30 items for high school students and 31 for university students, that predictive more than 58% of the observed variance. The Cronbach’s alpha coefficient for the sub-scales ranged from 0.80 to 0.86, and the ICC was above 0.86.
Conclusion: The results showed that the HBM was a valid and reliable tool for measuring the HIV/AIDS beliefs and could be used in future investigations.
B Tahani, A Najimi , M Salavati, M Fazel,
Volume 14, Issue 4 (3-2019)
Abstract
Background and Objectives: Satisfaction is a valuable measure of the quality of care and the patient-provider relationship. The Dental Satisfaction Questionnaire is a valid and international instrument for evaluating dental satisfaction. The aim of this study was to assess the validity and reliability of the Persian version of the Dental Satisfaction Questionnaire.
Methods: Upon assuring the precision of Persian translation, assessment of face and content validity was performed using the opinion of 10 patients and 10 experts. The validated questionnaire was then distributed among 300 patients attending the dental clinics using multistage cluster sampling. Factor analysis was used to assess the structure validity of the questionnaire and to elicit the factors predicting total satisfaction. Cronbach’s alpha was used for assessing the reliability of the questionnaire.
Results: After some changes in some questions, the face and content validity of the questionnaire were confirmed. Factor analysis revealed 7 domains could determine 61.3% of total variance, including clinical quality, service quality, availability of care, pain management, cost, access, and empathy and responsiveness of dentists. Correlation of each domain with the total satisfaction was above 0.4. The mean satisfaction was 60.6 ±9.1. Cronbach’s alpha was 0.74.
Conclusion: The Persian version of the DSQ is a valid, reliable, and appropriate instrument for evaluation of dental satisfaction of Iranian population. The elicited domains could properly determine the total satisfaction.
F Ranjkesh, M Nasiri, Sh Sharif Nia , Ah Goudarzian, Sz Hosseinigolafshani ,
Volume 14, Issue 4 (3-2019)
Abstract
Background and Objectives: One of the most common problems during pregnancy is sleep disorders, which is the result of physiological, hormonal and physical changes in pregnancy and can be the basis for many disorders before, during, and after delivery. The aim of this study was to determine the psychometric properties of the persion version of Sleep Condition Indicator in a sample of Iranian pregnant women.
Methods: In present study, 300 pregnant women reffered to health center of Kowsar (affiliated to Qazvin University of Medical Sciences) that were gathered via accesible sampling method, completed the Sleep Condition Indicator in 2017. Face, content, and construct validity (convergent and divergent validity) and reliability of selected questionnaire were calculated.
Results: The results of exploratory and confirmatory factor analysis showed two sustained and distinct factors, including quantity in sleep quality and the consequences of low sleep quality. The two-factor fit of Sleep Condition Indicator was approved based on standard indicators. Convergent and divergent validity were acceptable for all factors. Moreover, the internal consistency and reliability of the construct were also acceptable.
Conclusion: The results of this study showed that the Sleep Condition Indicator is valid and reliable among pregnant women, so it seems that this tool can be used to screen sleep disorders in women during pregnancy.
M Eftekhar Ardbili , M Taban, M Hatamizadeh, H Ranjbar,
Volume 15, Issue 2 (9-2019)
Abstract
Background and Objectives: The Problematic Internet Use Questionnaire (PIUQ) is a scale for evaluating the adverse effects of high Internet usage. It was adopted into Persian in a previous study. The factorial structure of the adopted version was different from the original English version. The purpose of this study was to determine the factorial structure of the Persian version of the Problematic Internet Use Questionnaire.
Methods: In this methodologic study, sampling was carried out in students of Iran University of Medical Sciences, University of Tehran, and Sharif University of Science and Technology. A total of 428 students completed the Problematic Internet Use Questionnaire. Exploratory factor analysis was performed using SPSS. Confirmatory factor analysis was carried out using AMOS. The reliability of the Scale was determined using Cronbach’s alpha coefficient (α=0.89).
Results: Exploratory factor analysis showed four factors including online preoccupation, adverse effects, social interactions, and excessive use. The mean ± SD of the domains was 2.12±0.81, 2.01±0.86, 2.18±0.85 and 2.39±0.97 for online preoccupation, adverse effects, social interactions, and excessive use, respectively.
Conclusion: The exploratory and confirmatory factor analysis showed that the Persian version of the Problematic Internet Use Questionnaire had a relatively similar structure with the English version. One dimension of the questionnaire was split to two new dimensions. This questionnaire can be a useful tool for measuring problematic behaviors related to the excessive use of the Internet.
Ma Soleimani, N Dalvand, S Zarabadi Pour , Z Alimoradi, A Görgülü, N Bahrami,
Volume 17, Issue 1 (5-2021)
Abstract
Background and Objectives: Accurate assessment of patients' death depression requires a specific tool that is appropriate to the culture of each community. Therefore, the aim of this study was to evaluate the psychometric properties of the Death Depression Scale in women with breast cancer.
Methods: In this methodological study, 246 breast cancer patients presenting to Qazvin Provincial Hospital completed the 17-item Templar Death Depression Scale. Psychometric properties of this scale were evaluated by exploratory and confirmatory factor analysis. Reliability was also assessed using Cronbach's alpha, omega and composite reliability.
Results: Exploratory factor analysis showed that six items in the Persian version did not acquire the required loading factor, and were omitted. The remaining eleven items as a single factor accounted for 66.91% of the variance of this concept. In confirmatory factor analysis, 11 items had appropriate fit indices (χ2 = 97.664, p <.001, χ2 / df = 2.504, GFI = .932, CFI = .972, IFI = .973, TLI = .961, SRMR = .030, and RMSEA = .079). A Cronbach's alpha coefficient of 0.95, Omega coefficient of 0.95, and composite reliability coefficient of 0.96 indicated the acceptable reliability of the 11-item version.
Conclusion: The results of this study showed that the 11-item Death Depression Scale was valid and reliable in Iranian patients with breast cancer. Given the appropriate psychometric parameters, this scale can be used to assess death depression in future studies.
Mohammad Zare, Zahra Tagharrobi, Khadijeh Sharifi, Zahra Sooki, Javad Abolhasani,
Volume 17, Issue 2 (9-2021)
Abstract
Background and Objectives: Valid, reliable, short, sensitive and accurate tool is needed to diagnose pain in dementia patients. This study aimed to determine the psychometric properties and diagnostic accuracy of short-form Persian version of Doloplus-2 (P-Doloshort) in pain assessment in elderly with dementia.
Methods: In this cross-sectional study, 100 elderly were selected using convenient sampling from private clinics and nursing homes in Kashan in 2018-19. Construct validity was determined by exploratory factor analysis, known-groups approach and convergent validity. Also, reliability was evaluated by internal consistency, equivalence, and stability. P-Doloplus-2 and P-Doloshort were used as the reference standard and the index test, respectively. Data were analyzed by SPSS-v16 using independent T-Test, linear regression, Pearson and intra-class correlation coefficients (ICC), Cronbach's alpha, ROC curve, and diagnostic test parameters.
Results: Factor analysis identified the tool as a single-factor; it was able to explain 65.851% of total variance. P-Doloshort was able to differentiate between two groups with and without painful underlying diseases (P<0.0001). There was a positive and significant correlation between P-Doloshort score with P-Doloplus-2 score (r=0.975, P<0.0001) and PACSLAC-II-IR score (r=0.0001, P<0.0001). Cronbach's alpha, ICC and standard error of measurement were 0.898, 0.891 and ±1.183, respectively. The relative frequency of minimum and maximum possible score was less than 15%. At the cut-off point of 2.5, area under ROC curve, sensitivity, specificity, and overall diagnostic accuracy were estimated 0.985, 0.956, 1.000 and 0.970, respectively.
Conclusion: P-Doloshort can be used as a valid, reliable, sensitive and accurate tool for pain assessment in elderly with dementia.
Ali Jafari-Khounigh, Morteza Haghighi, Alireza Razzaghi, Shahram Habibzadeh, Seyed Taghi Heydari, Rasoul Entezarmahdi, Dr. Alireza Ansari Moghaddam, Hamid Sharifi, Mostafa Farahbakhsh, Mahdi Rezaei, Mina Golestani, Ehsan Sarbazi, Naser Nasiri, Homayoun Sadeghi-Bazargani,
Volume 19, Issue 3 (12-2023)
Abstract
Background and Objectives: Masks play a crucial role in preventing and controlling viral epidemics transmitted predominantly through the air. This study aimed to develop and validate a tool to measure people’s attitudes and behaviors related to mask usage during highly contagious viral epidemics.
Methods: In this psychometric study, the initial questionnaire was developed and face validity and content validity were assessed by 17 experts and three lay experts. Reliability was evaluated through internal consistency using Cronbach’s alpha and test-retest reliability using the Intraclass Correlation Coefficient (ICC). Construct validity was measured using exploratory factor analysis (EFA) with the principal component extraction method and Varimax rotation.
Results: Based on a review of previous studies, an initial 27-item questionnaire was crafted. During the face validity stage, two items were excluded. Through calculating the Content Validity Ratio (CVR) and the Content Validity Index (CVI), three and one items respectively removed. The average scale level content validity index (S-CVI/Ave) was 0.95. Cronbach's alpha coefficient was found to be 0.76 for attitude and 0.66 for practice sections; the ICC was equal to 0.873. EFA revealed two factors explaining 63.98% of the total variance.
Conclusion: This questionnaire demonstrated sound reliability and validity in Persian, providing an effective means to assess attitude and behavior related to mask usage during highly contagious viral epidemics. It stands as a valuable tool for use in Iran and other countries.
