The analysis of psychometric properties of the Vancouver Obsessional Compulsive Inventory, Persian form (VOCI)

Imandoust, Haleh; Isazadegan, Ali; Soleimani, Esmayil

doi:10.52547/apsy.2021.215660.0

The analysis of psychometric properties of the Vancouver Obsessional Compulsive Inventory, Persian form (VOCI)

Document Type : Original Article

Authors

Urmia university

10.52547/apsy.2021.215660.0

Abstract

Aim: The purpose of this study was to investigate the psychometric properties of the VOCI in northwest of Iran With the participation of a broader non-clinical sample and Compare the results with Abedi, Izadi and Moien’s(2012) study. Method: The method was a descriptive-correlation and statistical population consisted of all adults with no psychiatric disorder residing in the East and West Azerbaijan province (N=3437411) which 200 people were selected through cluster sampling and 40 patients with OCD selected through purposeful sampling. VOCI and Abdel-Khalek death obsession scale (DOS) used for collecting data. Data analysis was performed using SPSS-24 software Results: results showed the same extraction and validation in the present sample. Significant correlation coefficients with DOS (p=0.0001, r =0.56) showed Criterion validity. Cornbrash’s alpha coefficient of validity (0/946 non- obsessional group, 0.938 obsessional group, & 0.952 the whole score) showed favorable internal consistency. In addition, the results of the two-tailed independent t-test showed a statistically significant difference between mean scores of the present sample (In both clinical and nonclinical samples) with the mean of normative sample (p<0.05, df= 278, T= 2.23 non clinical sample & p=0.02, df= 118, T= 6.53 clinical sample & p= 0.0001). Using the ROC curve, a new cut-off point (91) was proposed for this tool in northwestern Iran. Conclusion: It can be concluded that VOCI has also a favorable validity and reliability in the nonclinical sample but because of cultural reasons has higher cut point in the northwest of Iran.

20.1001.1.20084331.1399.14.3.4.6

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