A formula for the reliability of difference scores was used to estimate the reliability of Delis-Kaplan Executive Function System (D-KEFS; Delis et al., 2001) contrast measures from the reliabilities and correlations of their components. In turn these reliabilities were used to calculate standard errors of measurement. The majority of contrast measures had low reliabilities: of the 51 reliabili...

 Abstract—In this paper, we propose a method of structured construction of the optimal measurement matrix for noiseless compressed sensing (CS), which achieves the minimum number of measurements which only needs to be as large as the sparsity of the signal itself to be recovered to guarantee almost error-free recovery, for sufficiently large dimension. To arrive at the results, we employ a dua...

The purpose of this article is to help researchers avoid common pitfalls associated with reliability including incorrectly assuming that (a) measurement error always attenuates observed score correlations, (b) different sources of measurement error originate from the same source, and (c) reliability is a function of instrumentation. To accomplish our purpose, we first describe what reliability ...

have ready access to chip fabrication, or do not have faculty with chip fabrication knowledge. The project discussed in this paper attempts to address this access issue by creating a World Wide Web (WWW)-based education center, accessible by the general engineering community, that uses the resource kit as a base to expand the analog VLSI design education products available to include a web-cont...

Reliability and Validity 2 Instrument Reliability and Validity: Introductory Concepts and Measures Instrument validity and reliability have often been both misunderstood and under emphasized in the social scientific literature. In truth, these phenomena lie at the heart of competent and effective study. How productive can one's research to be if the instrument that he or she implemented does no...

There exist measuring devices where an analog input is converted into a digital output. Such converters can have a nonlinear internal dynamics. We show how measurements with such converting devices can be understood using concepts from symbolic dynamics. Our approach is based on a nonlinear one-to-one mapping between the analog input and the digital output of the device. We analyze the Bernoull...

OBJECTIVES To develop a clinically relevant and easy to use pain assessment tool for individuals with advanced dementia that has adequate psychometric properties. DESIGN Instrument development study using expert clinicians and behavioral observation methods. Measurement of sensitivity of the instrument to detect the effects of analgesic medications in a quality improvement activity. SETTING...

A prototype based on industrial tools will be presented to analyze and optimize the lifetime yield of analog circuits, where both parameter variations from manufacture process and parameter lifetime degradations due to NBTI and HCI effects are considered [1]. A robust analog design is thus achieved tolerant of both effects.