ساخت و اعتباريابي فرم كوتاه مقياس استرس پليس ايران IPSS-A به وسيله تحليل عوامل

The Construction and validation of the Short Form of Police Stress Scale (IPSS-A) by Factor Analysis

The purpose of this research was to Construct and validate the Short Form of Iranian Police Stress Scale (IPSS-Zarifiyan yegane and Khalambor, 2004) by Factor Analysis and assessing reliability and validity. 3650 police officers of IRIPF (Islamic Republic of Iran Police Force) personnel throughout the country completed the IPSS questionnaires. Based on of factor analysis of collected data, 40 items of 85 items of questionnaires were eliminated and therefore IPSS short form (i.e. IPSS-A) was provided. IPSS-A validity was determined by correlation coefficient between long form and short form (r=0.98 for the 1st factor & r=0.96 for the 2nd factor) and its reliability was identified by test-re-test method (r=0.78 for the 1st factor & r=0.80 for the 2nd factor) and internal consistency «Cronbach Alpha Coefficient", (a=0.93 for the 1st factor & ct=0.91 for the 2nd factor). Overall, obtained validity and reliability coefficients for IPSS-A were satisfactory for p<0.001. Based on the results of this research IPSS-A can be used in psychological research for identifying police stress.