background: visualattention is known as acritical base for learning.thepurpose of the present study was to design, develop and evaluate the test-retest and internal consistency reliability as well as face, content and convergent validity of thecomputer- based selective visual attention test (sevat) for healthy first-grade school children.   methods :in thefirst phase of this study,the computer-...

Sociologist James A. Quinn states that the tasks of scientific method are related directly or indirectly to the study of similarities of various kinds of objects or events. One of the tasks of scientific method is that of classifying objects or events into categories and of describing the similar characteristics of members of each type. A second task is that of comparing variations in two or mo...

background: sustained visual attention is a prerequisite for learning and memory. the early evaluation of attention in childhood is essential for their school and career success in the future. the aim of this study was to design, development and investigation of psychometric properties (content, face and convergent validity and test-retest and internal consistency reliability) of the computer -...

Premonitory urges are a cardinal feature in Gilles de la Tourette syndrome. Severity of premonitory urges can be assessed with the "Premonitory Urge for Tic Disorders Scale" (PUTS). However, convergent validity of the measure has been difficult to assess due to the lack of other urge measures. We investigated the relationship between average real-time urge intensity assessed by an in-house deve...

Falling poses a major threat to the steadily growing population of the elderly in modern-day society. A major challenge in the prevention of falls is the identification of individuals who are at risk of falling owing to an unstable gait. At present, several methods are available for estimating gait stability, each with its own advantages and disadvantages. In this paper, we review the currently...

background: the aim was to assess the reliability and the validity of the translated version of the stroke specific quality of life (ss-qol) questionnaire in iranian post-stroke patients. methods: this project was performed at the shiraz university of medical sciences, shiraz, iran, between 12  april  2010  and  24  february 2011.  the  english version of the ss-qol was translated into persian ...