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For other uses, see Fidelity (disambiguation).
Palazzo Ducale in Venice: capital # 28 in the porch, featuring Virtues and vices - In fidelitate nulli gero (Fidelity)

Fidelity is the quality of being faithful or loyal. Its original meaning regarded duty in a broader sense than the related concept of fealty. Both derive from the Latin word fidēlis, meaning "faithful or loyal".

Audio[edit]

Fidelity also denotes how accurate a copy is to its source. For example, a worn gramophone record will have a lower fidelity than one in good condition, and a recording made by a low budget record company in the early 20th century is likely to have significantly less audio fidelity than a good modern recording. In the 1950s, the terms "high fidelity" or "hi-fi" were popularized for equipment and recordings which exhibited more accurate sound reproduction. The converse term "lo-fi", doesn't necessarily mean "low fidelity", rather that the production ethic aims for "gritty authenticity" over perfect production. Similarly in electronics, fidelity refers to the correspondence of the output signal to the input signal, rather than sound quality, as in the popular internet connection technology "Wi-Fi".

Scientific modelling and simulation[edit]

In the fields of scientific modelling and simulation, fidelity refers to the degree to which a model or simulation reproduces the state and behaviour of a real world object, feature or condition. Fidelity is therefore a measure of the realism of a model or simulation.[1] Simulation fidelity has also been described in the past as "degree of similarity".[2]

Program evaluation[edit]

In the field of program evaluation, the term fidelity denotes how closely a set of procedures were implemented as they were supposed to have been. For example, it's difficult to draw conclusions from a study about formative assessment in school classrooms if the teachers are not able or willing to follow the procedures they received in training.[3]

References[edit]

  1. ^ "SISO-REF-002-1999: Fidelity Implementation Study Group Report". 
  2. ^ Hays, R.; Singer, M. (1989). Simulation fidelity in training system design: Bridging the gap between reality and training. Springer-Verlag. 
  3. ^ O’Donnell, Carol (2008). "Defining, Conceptualizing, and Measuring Fidelity of Implementation and Its Relationship to Outcomes in K–12 Curriculum Intervention Research". Review of Educational Research 78 (1): 33–84. doi:10.3102/0034654307313793. Retrieved March 6, 2010. 

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457856 videos foundNext > 

Regina Spektor - "Fidelity" [Official Music Video]

2006 WMG Fidelity (Video) Regina's new album 'What We Saw from the Cheap Seats' is available now: http://smarturl.it/whatwesawitunesyt For more Regina: htt...

Regina Spektor - Fidelity

Jasmine Thompson - Fidelity (Lyrics)

Fidelity cover by 12 year old talent Jasmine Thompson.

Fidelity-Regina Spektor Lyrics Video (HD)

No ©copyright intended. © goes to Regina Spektor* Font: Annie Use Your Telescope dafont.com.

Regina Spektor - Fidelity - Live In London [HD]

Regina Spektor perfoms Fidelity as part of her Far Tour, Live at the Hammersmith Apollo in London - December 4, 2009. Tags: Regina Spektor Fidelity Live In L...

Fidelity AMV (Best Drama and Editor's Choice - Anime Boston 2013)

Gah, this is the first full project I've made in a loooong time. I've been constantly working on things, but I always drop them.This is going to be my first ...

Test Fidelity in Brazil what would you do

Test Fidelity in Brazil what would you do.

Iniciante PW Fidelity Rate Baixa ~ Primeiras impressões #1

Não se esqueçam de avaliar o vídeo com seu Like Se gostaram, inscrevam-se. Curtam a fanpage : https://www.facebook.com/ShowEmVegas.

S. Fidelity - Bounce with me (Video)

TRACK FOR FREE HERE : https://soundcloud.com/feelinmusic/s-fidelity-bounce-with-me-free BUY VINYL : http://www.vinyl-digital.com/Hip-Hop-Rap/Five-to-Nine.htm...

Fidelity - Regina Spektor (Sub Español)

Letra en inglés: I never loved nobody fully Always one foot on the ground And by protecting my heart truly I got lost in the sounds I hear in my mind All of ...

457856 videos foundNext > 

809275 news items

ThinkAdvisor

ThinkAdvisor
Fri, 31 Oct 2014 13:37:30 -0700

“We see this as a practice management engagement,” said Mike Durbin, president of Fidelity Institutional Wealth Services (IWS), in an interview Thursday. Durbin was speaking during the second day of Fidelity IWS's “Be Greater” conference in New York ...

Reuters

Reuters
Mon, 27 Oct 2014 09:58:42 -0700

(Reuters) - Fidelity Investments said it would provide 401(k) retirement services to employees of American Airlines Group Inc, beginning mid-2015. The five-year agreement will service about 120,000 employees, Fidelity said. (bit.ly/12SoroM). The mutual ...

Boston Globe

Boston Globe
Sat, 18 Oct 2014 21:29:14 -0700

WASHINGTON — Abigail P. Johnson, the billionaire president and CEO of Fidelity Investments, epitomizes the quiet, old-money side of the Boston mutual fund world. With her understated, publicity-shy manner, messy Washington politics would not seem to ...

CNBC

New York Times
Wed, 15 Oct 2014 06:08:40 -0700

Fidelity Investments appears not to be taking offense. It announced Wednesday that it would team up with Betterment and encourage Fidelity-affiliated financial advisers to use its service. The move follows a revelation this week that a firm affiliated ...

Lifesite

Lifesite
Fri, 31 Oct 2014 11:01:35 -0700

“Gay in Christ: Dimensions of Fidelity” is co-sponsored by Notre Dame's Institute for Church Life (ICL) and the Gender Relations Center. ICL director Dr. John Cavadini poses the following question on the University's website: “Can Church teaching ...

Forbes

Forbes
Mon, 13 Oct 2014 12:22:43 -0700

Long thought to be the heir-apparent of asset management giant Fidelity, Abigail Johnson is replacing her father, Edward “Ned” Johnson III, as the company's CEO. “Abby Johnson has agreed to become Chief Executive Officer of Fidelity, reflecting a ...
 
The Cardinal Newman Society
Fri, 31 Oct 2014 13:37:30 -0700

The Love and Fidelity Network is set to host its seventh annual conference on “Sexuality, Integrity, and the University” at Princeton University. The national conference, which will take place November 7-8, features nationally-recognized speakers and ...
 
Wall Street & Technology
Wed, 29 Oct 2014 12:30:00 -0700

Sixty nine percent who trade frequently with mobile apps feel they are getting a competitive advantage over investors who do not, according to Fidelity's Mobile Money Study, released yesterday. In terms of results, 41% of frequent users of financial ...
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