Lord (1980) proposed formulas that provide direct relationships between IRT discrimination and difficulty parameters and conventional item statistics. The purposes of the present study were to determine (1) the veracity of the two formulas within the context that Lord proposed, and (2) the robustness of the formulas beyond the initial and restrictive conditions identified by Lord. Simulation an...

Musical priming research has reported that sensory consonance/dissonance judgements for a target chord were faster when targets were musically related to a musical prime context. The present study extended this context effect to a timbre discrimination task. This new task allowed us to investigate whether musical priming results from congruency effects similar to those reported in other domains...

OBJECTIVE To analyze, by means of "Item Response Theory", an instrument to measure adherence to t treatment for hypertension. METHODS Analytical study with 406 hypertensive patients with associated complications seen in primary care in Fortaleza, CE, Northeastern Brazil, 2011 using "Item Response Theory". The stages were: dimensionality test, calibrating the items, processing data and creatin...

Psychophysiological detection of deception has seen increased attention in both research and applied settings. In this field, the most scientifically validated paradigm is the Concealed Information Test (CIT). The CIT does not directly deal with whether a participant is lying, but examines whether a participant recognizes a critical relevant detail, inferred by differences in physiological resp...

OBJECTIVES To develop and validate brief scales to measure common emotional and behavioural problems among adolescents in the examination-oriented education system and collectivistic culture of China. SETTING Middle schools in Hunan province. PARTICIPANTS 5442 middle school students aged 11-19 years were sampled. 4727 valid questionnaires were collected and used for validation of the scales...

Introduction Clinical reasoning is one of the most important skills in the process of training a medical student to become an efficient physician. Assessment of the reasoning skills in a medical school program is important to direct students' learning. One of the tests for measuring the clinical reasoning ability is Clinical Reasoning Problems (CRPs). The major aim of this study is to measure p...

Same/different discrimination is a classic task for investigating relational learning in animals. Recent research suggests that pigeons can learn a trial-unique same/different discrimination, which eliminates the opportunity to memorize the training items (Brooks & Wasserman, 2008). The authors conducted three tests to elucidate the role that item-based comparison plays in this trial-unique dis...

Introduction: Listening, the first language skill developed by many children, serves as basis of subsequent skills. In addition, listening comprehension skills affect reading success in different groups such typically developing readers, children with learning disabilities and specific disorders. The purpose this research is to adapt measurement tool Turkish culture. Method: study examine psych...

RATIONALE Previous research demonstrated a positive effect of d-amphetamine on long-term verbal memory. An improvement in memory for contextual information is proposed as a possible mechanism underlying the d-amphetamine facilitation effect. OBJECTIVES A double blind, placebo controlled experiment was used to examine the processes involved in episodic memory affected by an acute administratio...

Validated professional knowledge measures are limited in paediatric intensive care unit (PICU) nursing. The Basic Knowledge Assessment Tool for Pediatric Critical Care Nurses (PEDS-BKAT4) measures knowledge, however content and practice differences exist between various PICUs. The study aim was to evaluate the PEDS-BKAT4 in the Australian and New Zealand setting. A panel of 10 experts examined ...