Reliability engineering

2. There is a good, positive correlation between the six variables in the HC scale. The Cronbach Alpha is .769. From looking at the Inter-Item Correlation if I delete any variable the Cronbach Alpha will go down so there is no need to delete anything. The SE scale Cronbach Alpha was .686, after looking at the Inter-item Correlation chart all of the variables were positive but there were a few variable that were low. If I was to delete any variable the Cronbach Alpha would decrease. So the…

Validity of screening tests in the medical field and the field of psychology is extremely important. These tests help decipher if an individual needs to proceed with further assessments (Gregory, 2011). Without validity of tests, one would not be able to accurately screen for mental health disorders or ailments within the body (Gregory, 2011). Medical screening tests coined the words “sensitivity” and “specificity” while testing for diseases (North Carolina School of Science and Mathematics…

to improve the validity and reliability of data gained from such research methodologies. Some methods of research may give better and more reliable data than other methods. Each method comes with its advantages and disadvantages and some are more suitable for use in certain situations than others. Validity is about how accurate the results of a research are and whether the research piece has the ability to test and research the things it set out to achieve. Reliability is about how trustworthy…

understand what is reliability and validity first. According to David S. (2010), objectivity and credibility are the technical terms that reliability and validity of the research refer to. Polgar, S. and Thomas, S.A. stated that accuracy of the test procedure is what validity concerned with. They also pointed out that reliability is the characteristic of reproducibility and consistency of the results of a measurement step. There are different types of test validity and reliability, for example,…

Reliability, or precision, can be defined as the degree to which a measurement is able to be reproduced with nearly the same value when evaluated several times with no change to the underlying trait being measured. Inter-rater reliability is “ the consistency with which two or more judges rate the work or performance of test takers.(Kelley & Littenberg, 2015). Reliability is often a misconstrued measurement idea. However, the reliability of a test scores bears on decisions regarding the…

editors require verifiable online resources for an article to be accepted and subsequently be published (596). One of the important components of quality Wikipedia articles is the reliable online sources that the article cites from to enhance its reliability. The use of reliable articles from journals and other authentic online channels makes the information verifiable and reliable. Articles that properly meet this quality can be an excellent source of preliminary research information. However,…

construction capital projects in local government and community service environments, together with effective preparation of engineering…

STUDENT NAME YU CHEN STUDENT NUMBER: 1348836 UNIT CODE: LANG 10003 UNIT TITLE: English for Engineering UNIT TUTOR: Hannah Gurr TITLE OF ASSIGNMENT: Coursework: Essay WORD COUNT DATE SUBMITTED 22/3/2015 I confirm that this assignment is all my own work and that all source material has been acknowledged appropriately. I can also confirm that I have kept a copy of this assignment. I give permission for my work to be used for future academic purposes. Please tick if you do…

Introduction The overarching goal of this paper is to understand the Deepwater Program SoS engineering and integration failures before the program change in 2007 and develop recommendations for future similar SoS programs that can potentially prevent some of the failures from occurring. In order to achieve the goal of this study, reviews of documents produced by the Department of Defense (DoD), Department of Homeland Security (DHS), and U.S. Government Accountability Office (GAO) reports related…

In today’s aviation world, aircraft are designed with multiple systems to aid aircrew with all aspects of flight; however, the only factor that aircraft manufacturers can’t eliminate is the integration of human error. “Human errors represent the mental or physical activities of individuals that fail to achieve their intended outcome”*. In order to properly predict human error factors we must first understand some factors that make up human error, such as “fatigue” and “situational stress”.…