Haidarali homan; kamran ganji; roya farajollahi
Volume 2, Issue 6 , January 2012, , Pages 1-29
Abstract
Background: The clock drawing test (CDT) is a neuropsychological test that has been used as a part of evaluation & screening of adults with cognitive impairments.
Objectives: The aim of this research was study of possibility, reliability, validity and norm finding of Clock Drawing Test (CDT) in ...
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Background: The clock drawing test (CDT) is a neuropsychological test that has been used as a part of evaluation & screening of adults with cognitive impairments.
Objectives: The aim of this research was study of possibility, reliability, validity and norm finding of Clock Drawing Test (CDT) in 392 elementary school children of Tehran city.
Methods: The samples were selected by random multi step cluster sampling method. Students with behavioral, emotional, mental and pervasive developmental disorders eliminated after performing teacher form of Children Symptom Inventory (CSI-4, Gadow and Sprafkin, 1994) and Raven Progressive Matrices (Raven et al, 1983). Then, test copy of reproduction memoir figures (Caffarra et al, 2002) and CDT (Cohen et al, 2000) accomplished by 392 participants.
Results: Data analysis showed that the reliability coefficient Cronbach’s Alpha was 0/765. None of the 8 criterion for numbering of CDT was not omitted. Furthermore, inter-rater reliability and test-retest reliability were equal. /95 and. /90 respectively. The structure validity of CDT was study by main component analysis method. The amount of sampling sufficiency by KMO measure was. /716 and Bartlett’s Test of Sphericity was meaningful, then the condition were suitable for performing factor analysis. The results of factor analysis with Promax rotation extracting 2 parameters include: 1- Clock construction, 2- Time conception, that explained about 63% of total variance. Also, the concurrent validity of CDT and test copy of reproduction memoir figures was very suitable.
Conclusion: The clock drawing test has a good reliability and validity for cognitive evaluation of children.
javad mesrabadi
Volume 2, Issue 5 , October 2011, , Pages 1-24
Abstract
Background: Concept maps usage expanding as an academic achievement measurement tools great a challenge in scoring them. This study introduces three scoring methods of the concept maps tests: (1) relational method that in which a relationship between concepts separately was scored. (2) structural method ...
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Background: Concept maps usage expanding as an academic achievement measurement tools great a challenge in scoring them. This study introduces three scoring methods of the concept maps tests: (1) relational method that in which a relationship between concepts separately was scored. (2) structural method that based on scores was given to hierarchical organization of the concepts. (3) similarity method that in which a student’s concept map compares with a teacher’s concept map and assign score for each section of the map. Objective: The objective of the present research was to examining the validity and reliability of concept map-based tests scoring methods. critical validity, interpreter reliability and discriminative reliability were used to identify the most appropriate method of scoring. Method: the subjects of the research comprised 105 high school students in Tabriz city who were present in four classes. Results: Results showed that the relational method of scoring has higher quantities of the indicators than other methods. Similarity scoring method has the lowest indices in comparison with two other methods. Conclusion: These findings may have some implications in evaluating students' academic achievement which will be discussed in this paper. .
adel mokhberi; fariba dortaj; ali dorekordi
Volume 2, Issue 4 , July 2011, , Pages 1-21
Abstract
The current investigation has been done for the purpose of the standardization of the social problem solving inventory (SPSI ) amongst students of the faculty of Psychology & Educational Sciences of Tabatabaey university in 1387-88. For this purpose, a sample of 200 students consisting 154 females ...
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The current investigation has been done for the purpose of the standardization of the social problem solving inventory (SPSI ) amongst students of the faculty of Psychology & Educational Sciences of Tabatabaey university in 1387-88. For this purpose, a sample of 200 students consisting 154 females and 46 males was selected based on categorical sampling, and the students were tested according to the social problem solving inventory ( SPSI) and social adjustment micro-scale of the adjustment questionnaire. Results showed that considering the Alfa value ( 0.85 )of the five factors measured, and the reliability value ( R = 0.88 ), the SPSI enjoys an acceptable rate of reliability. What’s more, the study of the factorial structure signifies the presence of 5 factors including ( APS ), ( RPS ), ( ICPS ), ( PPO ) and ( NPO ). Moreover the exploratory study of the relationship between the variables of the investigation showed that social problem solving ability would explain significantly social adjustment (R=0.304). In general, the results found in regards to the managing structure of the SPSI and the relation between the variables of the investigation, proved consistent with the precedent studies.
parvaneh kadivar; zahra tanha; mehdi Arabzadeh
Volume 2, Issue 4 , July 2011, , Pages 73-88
Abstract
The The investigation of psychometric properties of epistemological belief scale in mathematics including reliability, validity and exploratory factor analysis was the purpose of this study. To achieve this end 464 university students (149 famales and 315 males), were selected through cluster rom sampling. ...
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The The investigation of psychometric properties of epistemological belief scale in mathematics including reliability, validity and exploratory factor analysis was the purpose of this study. To achieve this end 464 university students (149 famales and 315 males), were selected through cluster rom sampling. The exploratory factor analysis were investigated through principal component method, this analysis confirmed six factors ( difficult problems, steps, understanding, word problems, effort and usefulness).To reach the concurrent validity of the scale, Schommer epistemological beliefs scale and Kloosterman and stage scale were conducted. The results of the analysis were acceptable. Test- retest reliability and internal consistency of the cronbach scale through, alpha coefficients confirmed. The results of factor analysis, conducted in the main culture and previous validity- reliability coefficient were closed to the studies. A psychometric property, of this scale allows applying to mathematical epistemological beliefs research.
Masoud Hosseinchari; Hossain Davoudi; Haydar Ali Hooman; Hassan Pasha Sharifi
Volume 2, Issue 3 , April 2011, , Pages 1-20
Abstract
he present research is mainly focused on how to standardize and prepare a short form for MMPI-2 questionnaire among Iranian university students. The sample consists of 3578 college students (1763 male and 1815 female) at different educational levels (AA, BA, MA, and PhD) from eight provinces, who were ...
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he present research is mainly focused on how to standardize and prepare a short form for MMPI-2 questionnaire among Iranian university students. The sample consists of 3578 college students (1763 male and 1815 female) at different educational levels (AA, BA, MA, and PhD) from eight provinces, who were selected via multistage cluster sampling procedure. An Iranian and shortened version of MMPI-2 consisting of 370 questions was used. To investigate the construct validity of Iranian Shortened Version of MMPI-2, and to evaluate its reliability the principal components factor analysis and Oblimin oblique rotation was used. Results showed that Cronbach's Alpha coefficient as an index of reliability was 0.84 at first. This coefficient was increased to 0.96 through the omission of some questions with a weak co-efficient correlation. Among the remaining 156 questions, thirteen factors were extracted using factor analysis, Oblimin oblique rotation, skewing diagram and explained variance percentile. These factors, as a whole, explained 40.15 percent of the total variance of the variables. The naming of the factors was according to the original MMPI-2 including: Psychasthenia (PT), Frequency (F), Hypomania (Ma), Schizophrenia (Sc), Correction (K), Hypochondriasis (Hs), Hysteria (Hy), Paranoia (Pa), Depression (D), Lie (L), Psychopathic deviate (Pd), Social introversion-extroversion (Si), and Masculinity-Femininity (Mf). General findings indicate that the shorted form of MMPI-2 qualifies psychometric properties for clinical use and research activities in Iranian culture, especially in university settings.
Moustafa Nickname; Ali Taghipour Zahir; ali delavar; Mohammad Ghafary Mojalaj
Volume 2, Issue 3 , April 2011, , Pages 1-20
Abstract
he aim of this study is to study the of validity and reliability of the Questionnaire Assessing Organizational Innovation. The sample was a totall of 308 managers from educational administers in Tehran City. The results of this study showed that opportune reliability and validity for Questionnaire Assessing ...
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he aim of this study is to study the of validity and reliability of the Questionnaire Assessing Organizational Innovation. The sample was a totall of 308 managers from educational administers in Tehran City. The results of this study showed that opportune reliability and validity for Questionnaire Assessing Organizational Innovation. The internal consistency coefficient (Chronbach, s alpha) for Questionnaire Assessing Organizational Innovation obtained 0.83. This was relatively high level of Chronbach. S alpha showed relatively high level of reliability. Correlation results among Questionnaire Assessing Organizational Innovation subscales showed convergence at measurement of single phenomenon. The positive correlation of the Questionnaire Assessing Organizational Innovation showed opportune convergent validity.
Firouzeh Sepehrian
Volume 2, Issue 3 , April 2011, , Pages 1-15
Abstract
he purpose of this study was to prepare a primary scale which can be used in further extensive studies for preparing normative scale to assess enneagram personality types of Iranian university students in relation to native culture. To achieve this aim, at first, all subjects participated in enneagram ...
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he purpose of this study was to prepare a primary scale which can be used in further extensive studies for preparing normative scale to assess enneagram personality types of Iranian university students in relation to native culture. To achieve this aim, at first, all subjects participated in enneagram training class for ten sessions and we deeply surveyed the Riso- Hudson enneagram. Then, questions based on native culture and enneagram theory were developed. This scale was administered to 20 university students. The results of this pilot study demonstrated that certain questions need be changed and some should be deleted. This scale and RHETI test were simultaneously administered to 110 university students. The subjects were randomly selected from Oromiyeh University. The data were analyzed using mean, standarddeviation, Cronbach, s alpha, KMO, Bartlett, Confirmatory analysis, principal component analysis with Varimax rotation and Pearson correlation. The findings proved that this scale can have some useful applications.
shokuh o sadat bani jamali
Volume 1, Issue 2 , January 2011, , Pages 47-74
Abstract
The present study was aimed at standardizing the Physical, Mood and Affective characteristics Inventory in accordance with cultural attributes of Iranian society. The study was accomplished in two preliminary and final stages. In preliminary stage, an inventory consisting of 51 items was administered ...
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The present study was aimed at standardizing the Physical, Mood and Affective characteristics Inventory in accordance with cultural attributes of Iranian society. The study was accomplished in two preliminary and final stages. In preliminary stage, an inventory consisting of 51 items was administered on 52 subjects with mental illness and 52 subjects who were mentally healthy. In final stage, the inventory was administered on a randomly selected sample, comprising 2335 subjects. In preliminary stage, the formal validity, criterion validity in relation to MMPI (short form) and differential validity were calculated. The results indicated that the inventory had desirable validity. In addition, the consistency coefficient of the inventory was obtained utilizing cronbach's a- method for both patient and non-patient groups (0.92 and 0.93, respectively). In final stage, the validity of inventory was calculated using factor analysis. The obtained value of Bartlett's test of sphericity was 0.63. 13 factors were derived based on scree test and with the preassumption of eigenvalue above (1). Omitting the extra factors, 6 out of 13 exploratory factors were left, as the main ones. The correlation Coefficient of each item score with the total score was calculated the index of internal consistency. The obtained coefficients were all significant (p<0/001). The criterion validity of the inventory, gained through concurrent administration with SCL-90 test on 320 subjects, was significant(p<0/001). Differential validity for the main sample (n=2335) was obtained by calculating the differences of mean scores for high school and college students, as well as boys and girls separately, on six factors. The reliability of the inventory was obtained utilizing, loop method. The value of total reliability coefficient, along with reliability coefficient, along with reliability coefficient in case of items omission, were a=0/9006 and a=0/9566 for the first and econd administrations respectively. The reliability of the inventory was also gained through test-retest method, with the correlation coefficient being signification at 0.99 level of confidence. Ultimately, the inventory norm, T and Z normal scores were obtained and normative hexagonal model was presented for sample groups separately.
ali mohammad zadeh; mahmud najafi
Volume 1, Issue 2 , January 2011, , Pages 117-130
Abstract
The Big Five Inventory (BFI-10) is a shorter, 10 item version of the BFI. It was designed to be used when time limitations in a research protocol does not allow using the longer BFI. It measures personality in one minute or less. In this report, we evaluate 10-item measures of the Big-Five personality ...
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The Big Five Inventory (BFI-10) is a shorter, 10 item version of the BFI. It was designed to be used when time limitations in a research protocol does not allow using the longer BFI. It measures personality in one minute or less. In this report, we evaluate 10-item measures of the Big-Five personality dimensions. The current study was conducted in survey and cross sectional as well as ex-post facto research context. A group of 317 randomly selected normal participants took part in this research. Principal component analysis extracted five factors which were labeled big five traits. However, for this scale other type of validity (convergent validity) and three reliabilities (test, retest, split half and internal constancy) were reported. The factor analysis and validity reliability coefficients demonstrated the same factor structure that previously found. Based on these results, it was concluded that BFI-10 contain good validity and reliability in Iranian population and it can be used, as valid measure in personality screening studies.
mohammad askari; sasan maleki
Volume 1, Issue 1 , October 2010, , Pages 1-23
Abstract
To test the reliability, validity and normalization of CTST in Malayer University, a sample size of 340 male and female students was randomly selected. The subjects answered the above-mentioned test under the same condition. The items of the test were translated and adapted to the Iranian culture. The ...
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To test the reliability, validity and normalization of CTST in Malayer University, a sample size of 340 male and female students was randomly selected. The subjects answered the above-mentioned test under the same condition. The items of the test were translated and adapted to the Iranian culture. The reliability of the test was calculated as 0.689 through the use of Kuder-Richardson, 0.558 through test split half, and 0.652 through test-retest methods. The validity of the test was determined through construct validity (convergent and divergent validities). Correlation of the test score was calculated as 0.64 through the application of Watson-Glaser Critical Thinking Test. Additionally, the correlation of the test with regard to the students' achievement and Cattle anxiety test was calculated as 0.31 and -0.25, respectively, which showed that critical thinking, academic achievement and anxiety are different constructs. Factor analysis of the answered questions revealed that the test includes 15 factors with the Eigen value greater than 1 which justifies 61.42% of the variance in the whole test. It is, however, worth mentioning that within the first three factors that included more than three questions had a factor loud greater than 0.3. No significant difference was observed in the test score mean among the various educational and sex groups.
