C8057 (Research Methods II): Reliability Analysis Reliability Analysis Measures of Reliability Reliability: the fact that a scale should consistently reflect the construct it is measuring. One way to think of reliability is that other things being equal‚ a person should get the same score on a questionnaire if they complete it at two different points in time (test-retest reliability. Another way to look at reliability is to say that two people who are the same in terms of the construct being
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Reliability Issues – Centrifugal Slurry Pumps Introduction Pumps were probably the first machine ever developed‚ and are now the second most common machine in use around the world‚ out-numbered only by the electric motor. The very earliest type of pump is now known as a water wheel‚ Persian wheel or “noria”‚ consisting of a wheel of buckets that rotates to pick up water from a stream and dump it into a trough. Another early pump was the “Archimedean screw”‚ similar to the modern screw conveyor
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I’m always trying to find new efficiencies in all aspects of my life‚ weather it be a super effective 30 minute workout with Jillian Michael’s BodyShred‚ or when researching for an upcoming assignment. One resource that I’ll suggest is Wikipedia‚ and I’m not the only person who will; “It’s an online information source that is increasingly used as the first‚ and sometimes only‚ stop for online encyclopedic information.”(Kapila‚ D.‚ & Royal‚ C. 2009) There was a time in my University career when
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In “The Moral Equivalent of War‚” William James explores the reasons behind the existence of war. A self-identifying pacifist‚ he proposes an alternative solution: “[an enlistment] against Nature‚” (1291)‚ which retains the virtues of a war but prevents its pains and sufferings. James also compares the differing perspectives of utopias: militarism and pacifism while identifying flaws in each of them. Militarism perceives war as a preservation technique for ideals‚ patriotism‚ courage‚ and other merit
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The Cash Flow statement shown above provides a summary of the outflows and inflows of cash as well as the cash equivalents of American Eagle for the Fiscal period 2013 to 2017 and of its main competitor‚ Abercrombie and Fitch. For the period 2013‚ American Eagle presents a net income above the $2‚000. Nonetheless‚ for the fiscal 2013 to the Fiscal 2014‚ the company went down from a 6.7% to a 2.5%‚ respectably. This evident decline in the AEO’s net income was due to the decrease in sales the firm
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Reliability Improvement Reliability of a scale is improved by pruning of weak items. Deleting a weak item from a measurement scale may sometimes lead to jeopardizing scale’s theoretical construct. When this happens‚ the item needs to be redesigned and revaluated. Wording of items in a measurement scale plays an important role in determining its discriminating power. Weak items in the scale are identified by computing Corrected Item-Total Correlation (CITC) (Ferketich‚ 1991) and Item-Deleted Cronbach’s
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The Reliability and Validity of the Bible One of the most current controversial topics in modern day times is the validity of the Bible. How can one know if the content is to be trusted and is real? As an extremely important religious text that many take to heart and live by on a day to day basis‚ it is imperative that the information in the Bible is reliable and true. In order to verify the validity of the information in the Bible‚ it is important to look into the past and study history
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TEST METHOD FOR THE GRAIN-SIZE ANALYSIS OF GRANULAR SOIL MATERIALS GEOTECHNICAL TEST METHOD GTM-20 Revision #4 GEOTECHNICAL ENGINEERING BUREAU APRIL 2007 NEW YORK STATE DEPARTMENT OF TRANSPORTATION GEOTECHNICAL TEST METHOD: TEST METHOD FOR THE GRAIN-SIZE ANALYSIS OF GRANULAR MATERIALS GTM-20 Revision #4 STATE OF NEW YORK DEPARTMENT OF TRANSPORTATION GEOTECHNICAL ENGINEERING BUREAU APRIL 2007 EB 07-039 Page 1 of 13 TABLE OF CONTENTS 1. 2. 3. 4. 5.
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GLOSSARY WRD - Weibill’s Reliability Distribution RBD - Reliability Block Diagram MSG - Maintenance Steering Group RCM - Reliability Centred Maintenance EDP - Engine Driven Pump EMDP - Electrical Motor Driven Pump FTA - Fault Tree Analysis ABSTRACT The reliability analysis of Boeing 737NG’s hydraulically actuated rudder control system is carried out using WRD‚ RBD‚ FTA and MSG-3 analysis and an RCM strategy is designed to maintain the reliability of the system to specified
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SPINE Volume 26‚ Number 10‚ pp 1167–1171 ©2001‚ Lippincott Williams & Wilkins‚ Inc. Reliability and Validity of the Active Straight Leg Raise Test in Posterior Pelvic Pain Since Pregnancy Jan M. A. Mens‚ MD‚*† Andry Vleeming‚ PhD‚* Chris J. Snijders‚ PhD‚‡ Bart W. Koes‚ PhD‚§ and Henk J. Stam‚ MD‚ PhD† Pregnancy is frequently complicated by the occurrence of lumbopelvic pain; the reported cumulative 9-month incidence ranges from 48%-56%.2‚4‚8‚12 Posterior pelvic pain since pregnancy (PPPP) is
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