background: despite progression of knowledge of nursing researcher about importance of psychometric principles of instruments of studies but it seems that this subject is not used correctly in nursing studies. this study is designed to critically assess the validity and reliability of instruments applied in studies published in iranian nursing journals methods: this study is a critical review o...

Although qualitative research is gaining recognition in medicine and in medical education, most clinical teachers do not know how to perform a critical appraisal of articles in these fields. This article describes a grid for the critical appraisal of qualitative research articles so that clinical teachers are in a better position to evaluate this type of research and to teach the critical appra...

Background Recently there has been a significant increase in the number of systematic reviews addressing questions of prevalence. Key features of a systematic review include the creation of an a priori protocol, clear inclusion criteria, a structured and systematic search process, critical appraisal of studies, and a formal process of data extraction followed by methods to synthesize, or combin...

With a large output of medical literature coming out every year, it is impossible for readers to read every article. Critical appraisal of scientific literature is an important skill to be mastered not only by academic medical professionals but also by those involved in clinical practice. Before incorporating changes into the management of their patients, a thorough evaluation of the current or...