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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. 

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Fidelity — Please support Wikipedia.
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458897 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 - A Documentary about Cuba without Castro

"Fidelity" is a documentary by Alessandra Magnaghi & Ortensia Visconti, shot in Cuba in July 2006, when Fidel Castro disappeared from the political scene pas...

Fidelity-Regina Spektor Lyrics Video (HD)

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

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 ...

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...

Jasmine Thompson (cover) - Fidelity (lyrics)

Cover by Jasmine Thompson with lyrics on the screen. Enjoy!!!

Fidelity - Regina Spektor (With Lyrics)

EDIT:// If you want me to do lyrics for the song just comment or something. (: First time I've ever done something like this before. (: Critiques, feedback a...

Regina Spektor - "Fidelity" (Live In London)

2010 WMG Fidelity (Live In London) Directed by Adria Petty for East Pleasant Pictures Regina's new album 'What We Saw from the Cheap Seats' is available no...

458897 videos foundNext > 

7774282 news items

ThinkAdvisor

ThinkAdvisor
Thu, 18 Dec 2014 14:18:45 -0800

In any determination of the best mutual fund of all time, Fidelity Magellan would have to merit serious consideration. Of course, there are too many ways to slice and dice performance data. Contending funds have different inception dates and changes of ...

Financial-Planning.com

Financial-Planning.com
Thu, 18 Dec 2014 04:00:00 -0800

While about three-quarters of RIA firms consider marketing and business development to be a priority, only about one-third actually has a plan in place, says David Canter, executive vice president and head of practice management and consulting for ...

Boston Globe

Boston Globe
Thu, 04 Dec 2014 20:31:12 -0800

She is the heiress without airs, the billionaire who breaks type. Abigail Johnson, newly installed as chief executive of Fidelity Investments, is known to fly commercial when it's more convenient and to sometimes cool her heels at the car rental ...

ThinkAdvisor

InvestmentNews
Tue, 02 Dec 2014 11:57:40 -0800

The second-largest custodian to registered investment advisers, Fidelity said Tuesday it will begin offering financial advisers access to LearnVest, an online advice platform that employs human advisers. The move comes less than two months after ...

Zacks.com

Zacks.com
Mon, 15 Dec 2014 07:52:25 -0800

With over $1,740.6 billion of mutual fund assets under management (as of Sep 30, 2014) and a wide variety of mutual funds spanning across a wide spectrum of sectors, Fidelity Investments is one of the largest mutual fund companies in the world.
 
Investorplace.com
Tue, 09 Dec 2014 10:00:00 -0800

best of 2014 2015 185 The 5 Best Fidelity Funds for 2015 Heading into a new year after as many record highs in the S&P 500 as has ever been the case, investors are rightly nervous about whether valuations here are too sky-high. At the same time, the ...

Crave Online

Crave Online
Fri, 19 Dec 2014 09:48:45 -0800

Maxed out, I had just enough horsepower to experience Metal Gear Solid at its greatest fidelity ever, while also remaining at 60 frames per second for my entire stealth playthrough. While some of this is due to the sheer horsepower of my setup, a lot ...
 
Businessweek
Mon, 15 Dec 2014 08:52:30 -0800

Myers, 39, will step back from overseeing the Fidelity Advisor Small Cap Value Fund and Fidelity Small Cap Value Fund. He will continue to manage the $6 billion Fidelity Small Cap Discovery Fund, which mostly invests in the growth or value stocks of ...
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