Because adaptive tracking procedures are designed to avoid stimulus levels far from a target threshold value, the psychometric function constructed from the trial-by-trial data in the track may be accurate near the target level but a poor reflection of performance at levels far removed from the target. A series of computer simulations was undertaken to assess the reliability and accuracy of psy...

OBJECTIVES The Relational and Item-Specific Encoding task (RISE) was designed to assess contributions of specific encoding and retrieval processes to episodic memory in schizophrenia. This manuscript describes how a cognitive neuroscience functional imaging paradigm was translated for clinical research. METHODS The RISE manipulates encoding by requiring participants to decide whether stimuli ...

background and purpose: using valid and reliable instruments is an important way for collecting data in qualitative researches. this paper is a report of a study conducted to examine the extent of psychometric properties of the scales in research papers published in journal of advanced nursing. methods: in this study, the journal of advanced nursing was chosen for systematic review. all article...

background and purpose: childbirth is a normal physiological process and a family event. women in various societies with different cultural backgrounds have diverse reasons for childbearing. understanding the reasons behind childbearing might help overcome some issues associated with early/late reproduction, or lack of desire to give birth. this study was an attempt to develop, validate, and st...

objective: the purpose of this study is to provide evidence of validity of the relational and overt aggression questionnaire (roaq) among iranian elementary students. methods: three hundred and forty nine 4th and 5th grade students (ages 9 and 10) participated in this study. participants completed the roaq. the scale consisted of 33 items designed to measure self-report aggressive behaviors for...

BACKGROUND Diverse national and international organizations have been developing projects for many years to improve testing practices. The main goal of this paper is to present the revised model of the European Federation of Psychologists' Associations (EFPA) for the evaluation of the quality of tests. This model aims to provide test users with rigorous information about the theoretical, practi...

BACKGROUND The 30-item Disabilities Arm Shoulder and Hand (DASH) questionnaire was introduced to facilitate assessment of upper limb functional limitations. To improve practicality and eliminate item redundancy a modified instrument was needed. The 11-item QuickDASH was developed to fulfil these requirements and translated into several languages. However, prospective investigations of psychomet...

BACKGROUND Several quality of life (QOL) instruments exist for skull base pathology, however, there have been no attempts to appraise and systematically review these instruments. METHODS We systematically reviewed MEDLINE, EMBASE, Central, AMED, Health and Psychosocial Instruments, and PsychoInfo for anterior or central skull base QOL instruments to January 2010. We queried experts, bibliogra...

The objective was to determine whether mismatch negativity (MMN) is suitable to supplement subjective psychometric subtests of central hearing. We assessed 13 healthy children and 32 children with central auditory processing disorder (CAPD). Three different types of sound deviants were presented in a multi-deviant MMN design. At group level, the incidence of MMN was always higher in clinically ...

OBJECTIVE The aim was to investigate the psychometric characteristics of the French adaptation of the Childhood Executive Functioning Inventory (CHEXI) in children and to explore the cross-cultural validity of the CHEXI in discriminating between children with ADHD and controls in two culturally different samples (Belgian and Swedish). METHOD Study I included normally developing children (n = ...