en پژوهشي Original Research Article <p style="text-align: justify"><strong>Objective: </strong>The purpose of the present study was to inspect the validity and reliability of the Iranian version of the Cognitive Flexibility Inventory (CFI-I).</p> <p style="text-align: justify"><strong>Methods:</strong> The statistical population of the present study was selected among the university students studying at Shiraz University in the 2010-2011 academic year. Two hundred and seventy seven of the university students were recruited via cluster sampling method. The participants answered the Cognitive Flexibility Inventory (CFI-I), Connor and Davidson Resilience Scale (CD-RISC), Beck Depression Inventory Second Edition (BDI-II) and Billings and Moos Coping Styles Questionnaire (CSQ).</p> <p style="text-align: justify"><strong>Results:</strong> To examine the validity of the CFI-I, factor analysis by principle component analysis method was run, the result of which yielded three factors namely, Control, Alternatives and Alternatives for Human Behaviors that explained 56.02% of the variance. Support for the convergent and discriminant validity of the CFI-I was obtained by its correlations with the measures of depression, coping strategies, and resilience. Evidence for the internal consistency of the CFI was obtained by calculating correlations between the CFI-I and its subscales. Also, the Cronbach’s alpha and test-retest coefficients for the CFI-I reliability were 0.90 and 0.71, respectively.</p> <p style="text-align: justify"><strong>Conclusion:</strong> It was concluded that the Iranian version of the CFI has acceptable levels of validity and reliability among Iranian university students and can be utilized in research investigations and therapeutic interventions.</p> <p></p> Cognitive Flexibility Inventory (CFI), Validity, Reliability, Iranian university students 43 50 http://jpcp.uswr.ac.ir/browse.php?a_code=A-10-118-2&slc_lang=en&sid=1 Hossein Shareh hsharreh@yahoo.com.au Yes Department of Psychology, Hakim Sabzevari University, Sabzevar, Khorasan-e Shomali, Iran. Azam Farmani azamfarmani3@gmail.com No Tehran Payame Noor University, Tehran, Iran Esmail Soltani No Shahid Beheshti University of Medical Sciences