Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators
The Problem Solving Inventory (PSI) is designed to measure adults’ perceptions of problem-solving ability. The presented study aimed to translate it and assess its reliability and validity in a nationwide sample of 3668 Greek educators. In order to evaluate internal consistency reliability, Cronbach...
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| Format: | Article |
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MDPI AG
2016-06-01
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| Series: | Social Sciences |
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| Online Access: | http://www.mdpi.com/2076-0760/5/2/25 |
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| author | Ntina Kourmousi Vasiliki Xythali Maria Theologitou Vasilios Koutras |
| author_facet | Ntina Kourmousi Vasiliki Xythali Maria Theologitou Vasilios Koutras |
| author_sort | Ntina Kourmousi |
| collection | DOAJ |
| description | The Problem Solving Inventory (PSI) is designed to measure adults’ perceptions of problem-solving ability. The presented study aimed to translate it and assess its reliability and validity in a nationwide sample of 3668 Greek educators. In order to evaluate internal consistency reliability, Cronbach’s alpha coefficient was used. The scale’s construct validity was examined by a confirmatory factor analysis (CFA) and by investigating its correlation with the Internality, Powerful others and Chance Multidimensional Locus of Control Scale (IPC LOC Scale), the Rosenberg Self-Esteem Scale (RSES) and demographic information. Internal consistency reliability was satisfactory with Cronbach’s alphas ranging from 0.79 to 0.91 for all PSI scales. CFA confirmed that the bi-level model fitted the data well. The root mean square error of approximation (RMSEA), the comparative fit index (CFI) and the goodness of fit index (GFI) values were 0.030, 0.97 and 0.96, respectively, further confirming the bi-level model and the three-factors construct of the PSI. Intercorrelations and correlation coefficients between the PSI, the IPC LOC Scale and the RSES were significant. Age, sex, and working experience differences were found. In conclusion, the Greek version of the PSI was found to have satisfactory psychometric properties and therefore, it can be used to evaluate Greek teachers’ perceptions of their problem-solving skills. |
| first_indexed | 2024-12-11T05:36:10Z |
| format | Article |
| id | doaj.art-5d8eb57f00be43a780ae29cf48ebcc5f |
| institution | Directory Open Access Journal |
| issn | 2076-0760 |
| language | English |
| last_indexed | 2024-12-11T05:36:10Z |
| publishDate | 2016-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Social Sciences |
| spelling | doaj.art-5d8eb57f00be43a780ae29cf48ebcc5f2022-12-22T01:19:17ZengMDPI AGSocial Sciences2076-07602016-06-01522510.3390/socsci5020025socsci5020025Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek EducatorsNtina Kourmousi0Vasiliki Xythali1Maria Theologitou2Vasilios Koutras3Primary Education Directorate of Eastern Attica, 150 Lavriou Ave & 4 Andrikou str., 15454 Glyka Nera, GreecePrimary Education Directorate of Eastern Attica, 150 Lavriou Ave & 4 Andrikou str., 15454 Glyka Nera, GreeceEarly Childhood Education, University of Ioannina, P.O. Box 1186, 45110 Ioannina, GreeceEarly Childhood Education, University of Ioannina, P.O. Box 1186, 45110 Ioannina, GreeceThe Problem Solving Inventory (PSI) is designed to measure adults’ perceptions of problem-solving ability. The presented study aimed to translate it and assess its reliability and validity in a nationwide sample of 3668 Greek educators. In order to evaluate internal consistency reliability, Cronbach’s alpha coefficient was used. The scale’s construct validity was examined by a confirmatory factor analysis (CFA) and by investigating its correlation with the Internality, Powerful others and Chance Multidimensional Locus of Control Scale (IPC LOC Scale), the Rosenberg Self-Esteem Scale (RSES) and demographic information. Internal consistency reliability was satisfactory with Cronbach’s alphas ranging from 0.79 to 0.91 for all PSI scales. CFA confirmed that the bi-level model fitted the data well. The root mean square error of approximation (RMSEA), the comparative fit index (CFI) and the goodness of fit index (GFI) values were 0.030, 0.97 and 0.96, respectively, further confirming the bi-level model and the three-factors construct of the PSI. Intercorrelations and correlation coefficients between the PSI, the IPC LOC Scale and the RSES were significant. Age, sex, and working experience differences were found. In conclusion, the Greek version of the PSI was found to have satisfactory psychometric properties and therefore, it can be used to evaluate Greek teachers’ perceptions of their problem-solving skills.http://www.mdpi.com/2076-0760/5/2/25problem-solvingreliabilityvalidityconfirmatory factor analysisteachers/educatorsGreek samplePSI |
| spellingShingle | Ntina Kourmousi Vasiliki Xythali Maria Theologitou Vasilios Koutras Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators Social Sciences problem-solving reliability validity confirmatory factor analysis teachers/educators Greek sample PSI |
| title | Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators |
| title_full | Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators |
| title_fullStr | Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators |
| title_full_unstemmed | Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators |
| title_short | Validity and Reliability of the Problem Solving Inventory (PSI) in a Nationwide Sample of Greek Educators |
| title_sort | validity and reliability of the problem solving inventory psi in a nationwide sample of greek educators |
| topic | problem-solving reliability validity confirmatory factor analysis teachers/educators Greek sample PSI |
| url | http://www.mdpi.com/2076-0760/5/2/25 |
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