saeedeh panahi; mohammad ali asghari moghadam; mohamad reza shaeeri; somayeh eghtedar nejhad
Volume 1, Issue 2 , January 2011, , Pages 21-46
Abstract
This paper examines the psychometric properties of a Persian version of the Short form of Health Anxiety Inventory (F- SHAI) among non-clinical Iranian population. After translation of the SHAI from English into Persian and pilot testing, the following steps were taken: first, the F-SHAI was administered ...
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This paper examines the psychometric properties of a Persian version of the Short form of Health Anxiety Inventory (F- SHAI) among non-clinical Iranian population. After translation of the SHAI from English into Persian and pilot testing, the following steps were taken: first, the F-SHAI was administered to 519 healthy students or employees from a number of universities in Tehran. The results of principal component analysis with Varimax rotation showed that three factors best explained the F-SHAI structure amongst the study sample. These factors were (1) “Illness Probability”, (2) “Illness Consequences”, and (3) “Preoccupation with Illness”. Cronbach alphas, mean inter-item correlations and test-retest coefficients (with 21-day interval) showed that this solution was reliable. Second, in order to examine the convergent and divergent validity of the F-SHAI and its 3 subscales, 472 participants from the original sample (i.e., 519) completed the two measures of Illness Attitude Scale (IAS) and Positive and Negative Affects Scales (PANAS). Pearson correlations were calculated between the F-SHAI and its 3 subscales with the total scores of the IAS and positive affect and negative affect of the PANAS. These results provide further support for the convergent validity of the F-SHAI and its 3 subscales. Furthermore, these results confirme the divergent validity of the F- SHAI and the two subscales of “Illness Probability” and “Illness Consequences”. The authors suggest that the F-SHAI and its 3 subscales are sufficiently valid and reliable for research purposes in the Iranian population.
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.
