We propose a criterion to determine a more appropriate software reliability growth model in the early development phase. The criterion with a discrete software reliability growth model determines the absolute worth of a model because the discrete software reliability growth model perfectly reproduces the parameter estimates when the data are used as an exact solution of the equation. The values...

This study used a theoretically-derived set of items of the Achenbach System of Empirically Based Assessment to develop the Achenbach Self-Control Scale (ASCS) for 7-16 year olds. Using a large dataset of over 20,000 children, who are enrolled in the Netherlands Twin Register, we demonstrated the psychometric properties of the ASCS for parent-, self- and teacher-report by examining internal and...

OBJECTIVE To assess the properties of validity and reliability of instruments used to assess satisfaction in a broad sample of health service user satisfaction studies, and to assess the level of awareness of these issues among study authors. DESIGN Examination and analysis of 195 papers published in 1994 in 139 journals. The following databases were searched: British Nursing Index, CINAHL, E...

This article is a continuation of the previous module on designing questionnaires and clinical record form in which we have discussed some basic points about designing the questionnaire and clinical record forms. In this section, we will discuss the reliability and validity of questionnaires. The different types of validity are face validity, content validity, criterion validity, and construct ...

The article is a continuation of a set of the author’s previous publications about the reliability of the microprocessorbased protective devices. The statistical data introduced by the author coincide with data of other authors and confirm higher reliability of electromechanical relays in comparison with microprocessor-based. The inadequacy of the criterion for estimating the reliability of the...

introduction: objective structured clinical examination (osce) is used for the evaluation of the clinical competence in medicine for which it is essential to measure validity and reliability. this study aimed to investigate the validity and reliability of osce for residents of obstetrics and gynecology at kermanshah university of medical sciences in 2011. methods: a descriptive-correlation stud...

Numerous explicit approximations of the Colebrook equation have been developed and evaluated based on two criteria: prediction accuracy computational efficiency. This paper introduces a new evaluation criterion reliability each equation. The is defined by coefficient variation (CV) friction factor that function variabilities component random variables (roughness height internal pipe surface kin...