The analog to digital front ends of measuring instruments affect crucially the interpretation of the signals acquired from the real world into the digital domain and their back presentation. The signal processing in the digital domain due to its stability meets usually the requirements on the uncertainty of the measuring instruments easily. ADCs and DACs influence dominantly the accuracy of ins...

Computer attitude and computer anxiety are two determining constructs of success with computer related work. In order to enhance the learning process, improve performance, reduce computer resistance, and ensure job satisfaction computer attitude should be improved and computer anxiety minimised. Several instruments for measuring these constructs are available in the literature but not all of th...

BACKGROUND Psychometric properties include validity, reliability and sensitivity to change. Establishing the psychometric properties of an instrument which measures three-dimensional human posture are essential prior to applying it in clinical practice or research. METHODS This paper reports the findings of a systematic literature review which aimed to 1) identify non-invasive three-dimension...

It is increasingly necessary to have a measuring instrument available in the health field that can be used in clinical practice and research. In order to guarantee the quality of their measurements it is essential that the instruments should be subjected to a process of validation. This process consists in adapting the instrument culturally to the setting where its psychometric characteristics ...

Published in: proceedings SPIE 4401 (2001) 'Recent Developments in Traceable Dimensional Measurements', Decker, Brown (ed) ABSTRACT For the calibration of length standards and instruments, various methods are available for which usually an uncertainty according to the GUM [1] can be set up. However, from calibration data of a measuring instrument it is not always evident what the uncertainty wi...

The development of instruments for the assessment of therapeutic intervention has been an age long practice. However, many of the published instruments do not have detailed information on how the instruments were developed. It is necessary for authors to provide detailed (step by step) information on how measuring scales/instruments are developed. The Ibadan Knee/Hip Osteoarthritis Outcome Meas...

The following describes some recent advances in UV spectroradiometry as required by the optical fiber manufacturing industry. The demands from fiber process engineers have presented some severe challenges in developing accurate and reliable UV measuring instruments. Such instruments are now available to provide both intensity and wavelength data in the form of UV spectral distribution analysis ...

This study aimed to identify instruments for measuring children's attitudes towards their peers with disabilities that are suitable for use in epidemiological studies and to report on their psychometric properties. A literature review was conducted to identify instruments measuring at least one of the three components of children's attitudes (affective, behavioural, or cognitive measures) towar...

Heart failure is one of the most frequent and deadly diseases that clinicians have to deal with in clinical practice.1 Between 1% and 2% of the population aged over 40 have heart failure and rises to 10% in those over 60-70 years old. Heart failure is also the most rapidly increasing cardiac disease.2 It is the third leading cause of cardiovascular death in Spain, behind ischemic heart disease ...

Assessing the success of an information system might help in locating weak and strong points of the system leading to the improvement of system under assessment. A popular system evaluation construct is user’s satisfaction. Different measuring instruments were developed to assess this construct at the organization environment. In addition to the traditional instruments that were develop to asse...