Ethics code: IR.TUMS.VCR.REC.1396.4265
Sahar Eftekhari 
, Saharnaz Nedjat , Hamidreza Pouragha , Gholamreza Pouryaghoub , Omid Aminian , Mahsa Naserpour , Ramin Mehrdad *
, Saharnaz Nedjat , Hamidreza Pouragha , Gholamreza Pouryaghoub , Omid Aminian , Mahsa Naserpour , Ramin Mehrdad *
Tehran University of Medical Sciences , mehrdadr@tums.ac.ir
Abstract: (141 Views)
Background and aims: the International COPSOQ Network, based on the feedback from the users of the second questionnaire, to cover all psychosocial dimensions of modern working life, developed the new version of the Copenhagen Psychosocial Questionnaire.
Methods: This study designed to adapt the long version of the COPSOQ III questionnaire in Persian language and to test the validity and reliability of this questionnaire. The Persian conversion of COPSOQ was done using the Forward-Backward translation process and the questionnaire was evaluated for content validity by professional experts. Then 148 items covering 45 dimensions of the long version were tested by 110 native Persian speaker workers. For repeatability assessment, all the participants completed the questionnaire after a two-week interval under a similar condition and Intraclass Correlation Coefficient (ICC) was calculated for each scale. Cronbach alpha was used to measure the internal consistency between the items of a scale or a domain. The study population consisted of 24 office workers and 86 industry workers.
Results: All domains received Cronbach alpha higher than 0.75. Most scales met or exceeded the 0.7 level recommended as an acceptable internal consistency. The whole questionnaire with 148 items showed Cronbach alpha equal to 0.86. Known-groups comparison validity demonstrated that the scales of this questionnaire can discriminate between two working groups. In test-retest assessment, ICC of 41 out of 45 scales was higher than 0.7.
Conclusion: This study provides acceptable evidence of the validity and reliability of the Persian long version of COPSOQ III (2018) for use in Iran.
Methods: This study designed to adapt the long version of the COPSOQ III questionnaire in Persian language and to test the validity and reliability of this questionnaire. The Persian conversion of COPSOQ was done using the Forward-Backward translation process and the questionnaire was evaluated for content validity by professional experts. Then 148 items covering 45 dimensions of the long version were tested by 110 native Persian speaker workers. For repeatability assessment, all the participants completed the questionnaire after a two-week interval under a similar condition and Intraclass Correlation Coefficient (ICC) was calculated for each scale. Cronbach alpha was used to measure the internal consistency between the items of a scale or a domain. The study population consisted of 24 office workers and 86 industry workers.
Results: All domains received Cronbach alpha higher than 0.75. Most scales met or exceeded the 0.7 level recommended as an acceptable internal consistency. The whole questionnaire with 148 items showed Cronbach alpha equal to 0.86. Known-groups comparison validity demonstrated that the scales of this questionnaire can discriminate between two working groups. In test-retest assessment, ICC of 41 out of 45 scales was higher than 0.7.
Conclusion: This study provides acceptable evidence of the validity and reliability of the Persian long version of COPSOQ III (2018) for use in Iran.
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