BACKGROUND Reliability and validity are the key concepts in measurement processes. Young internet addiction test (YIAT) is regarded as a valid and reliable questionnaire in English speaking countries for diagnosis of Internet-related behavior disorders. OBJECTIVES This study aimed at validating the Persian version of YIAT in the Iranian society. PATIENTS AND METHODS A pilot and a cross-sect...

OBJECTIVE Test the psychometric properties of the Persian version of the Perception of Psychiatry Survey questionnaire, which is being used in a large multi-site international study, of which we were part. This instrument was designed to measure the attitudes of medical educators to psychiatry. METHOD We used World Health Organization guideline as the methodological model for Persian translat...

Objective: Limited research has examined the psychometric properties of death depression scales in Persian populations with cardiac disease despite the need for valid assessment tools for evaluating depressive symptoms in patients with life-limiting chronic conditions. The present study aimed at evaluating the reliability and validity of the Persian Version of Death Depression Scale - Revised (...

Background: Female sexual dysfunction (FSD) is a real problem that affects 25-63% of women. There is no valid Persian version of sexual function questionnaire (FSQ). Objectives: The aim of this study was to test the reliability and validity of Persian version of sexual function questionnaire. Materials and Methods: In this cross-sectional study, 547 women were questioned by Persian version of S...

INTRODUCTION Tinnitus is a common otologic symptom that can seriously affect a patient's quality of life. The purpose of the present study was to translate and validate the Iowa Tinnitus Handicap Questionnaire (THQ) into the Persian language, and to make it applicable as a tool for determining the effects of tinnitus on a patient's life. MATERIALS AND METHODS The main version of the THQ was t...

OBJECTIVE The most commonly used instrument for the research and treatment of excessive internet use is Young's Internet Addiction Test (IAT). While the IAT has been translated to several languages (including Persian) and has demonstrated good psychometric properties across several independent studies, there is still a room for alternative assessment instruments. This study reports a validation...

BACKGROUND Irritable bowel syndrome (IBS) is a gastrointestinal disease that is accompanied by pain, diarrhea, constipation and abdominal bloating. Hence, IBS has a major effect on patients' quality of life. OBJECTIVES The present study aimed to examine validity and reliability of the Persian version of the IBS-QOL questionnaire in Iran. PATIENTS AND METHODS The original 34 items of the IBS...

The present study aims to assess the validity and reliability of the Persian version of the Infidelity Questionnaire (INFQ). Specifically, INFQ assesses the possible elements of sexual and emotional infidelity. The instrument was translated through the back-translation strategy and revised by three panels. The validity and reliability of the INFQ were examined in the current study. Results show...

BACKGROUND Vertigo Symptom Scale (VSS) is a proper instrument for assessing the patient status, clarifying the symptoms, and examining the relative impact of the vertigo and anxiety on reported handicap. Our aim is the translation and cross-cultural adaptation of the VSS into Persian language (VSS-P) and investigating its validity and reliability in patients with peripheral vestibular disorders...

BACKGROUND Fatigue, a major cause of disability in individuals with multiple sclerosis (MS), is associated with reduced quality of life. The aim of this study was to evaluate the reliability and reproducibility of the Persian version of Modified Fatigue Impact Scale (MFIS) in Iranian patients with MS. METHODS This study included 15 subjects with clinically definite MS, 15 hospitalized patient...