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 -...

OBJECTIVE The purpose of this study was to determine the psychometric properties of the Assessment of Computer Task Performance, specifically, the test-retest reliability, internal consistency, construct validity, and ability to discriminate between known groups. METHOD This assessment comprises 14 standardized and timed tasks. It was administered to 24 persons with upper-extremity impairment...

Retest stability and retest reliability were assessed for the Words-in-Noise Test (WIN) in two experiments involving older listeners with sensorineural hearing loss. In Experiment 1, the 70-item WIN protocol was administered during two sessions 12 months apart to examine retest stability on a sample of 315 veterans from four VA Medical Centers. The mean 50% points on the WIN were 12.5- and 12.8...

BACKGROUND To determine the prevalence of visual field (VF) performance failures (PF) and treatment failures (TFs), and identify factors associated with PFs in the Idiopathic Intracranial Hypertension Treatment Trial (IIHTT). METHODS A total of 165 participants from 38 sites with idiopathic intracranial hypertension (IIH) and mild visual loss were randomized to either acetazolamide-plus diet ...

OBJECTIVE To determine the reproducibility of 24-hour monitoring of motor activity in patients with multiple sclerosis (MS). DESIGN Test-retest design; 6 research assistants visited the participants twice within 1 week in the home situation. SETTING General community. PARTICIPANTS A convenience sample of ambulatory patients (N=43; mean age ± SD, 48.7±7.0y; 30 women; median Expanded Disabi...

Background. The NeuroTrax Mindstreams computerized cognitive assessment system was designed for widespread clinical and research use. A requirement for its use in longitudinal testing is demonstration of good test-retest reliability. To minimize practice effects, alternate forms of Mindstreams tests were administered on serial testing sessions. The present study evaluated the equivalence of the...

UNLABELLED We recently demonstrated that (11)C-MePPEP, a PET ligand for CB(1) receptors, has such high uptake in the human brain that it can be imaged for 210 min and that receptor density can be quantified as distribution volume (V(T)) using the gold standard of compartmental modeling. However, (11)C-MePPEP had relatively poor retest and intersubject variabilities, which were likely caused by ...

OBJECTIVE The Assisting Hand Assessment (AHA) has earlier demonstrated excellent validity and rater reliability. This study aimed to evaluate test-retest reliability of the AHA and alternate forms reliability between Small kids vs School kids AHA and the 2 board games in School kids AHA. DESIGN Test-retest and alternate forms reliability was evaluated by repeated testing with 2 weeks interval...