Overconfidence is one of the most substantial causes of spreadsheet errors.
Sakal, et al (2015)
People tend to believe their spreadsheets are more accurate than they really are.
Caulkins, Morrison, & Weidemann (2006)
Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.
Beaman, et al (2005)
Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.
Bock (2016)
Most large spreadsheets have dozens or even hundreds of errors.
Panko & Ordway (2005)
Spreadsheets are often hard, if not impossible, to understand.
Mireault & Gresham (2015)
Every study, without exception, has found error rates much higher than organizations would wish to tolerate.
Panko (1999)
It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.
Nixon & O'Hara (2010)
94% of the 88 spreadsheets audited in 7 studies have contained errors.
Panko (2008)
Spreadsheets are extraordinarily and unacceptably prone to error.
Dunn (2010)
Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.
Galletta, et al (1993)
...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.
Kruck & Sheetz (2001)
Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.
Hermans & van der Storm (2015)
Spreadsheets can be viewed as a highly flexible programming environment for end users.
Abreu, et al (2015)
The results given by spreadsheets are often just wrong.
Sajaniemi (1998)
Spreadsheets are more fault-prone than other software.
Kulesz & Ostberg (2013)
Spreadsheets are alarmingly error-prone to write.
Paine (2001)
Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.
Chadwick (2002)
Spreadsheets are dangerous to their authors and others.
Durusau & Hunting (2015)
The untested spreadsheet is as dangerous and untrustworthy as an untested program.
Price (2006)
Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.
Mireault (2015)
1% of all formulas in operational spreadsheets are in error.
Powell, Baker, & Lawson (2009)
A lot of decisions are being made on the basis of some bad numbers.
Ross (1996)
Your spreadsheets may be disasters in the making.
Caulkins, Morrison, & Weidemann (2006)
Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.
Abreu, et al (2015)
Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.
Panko (2014)
The quality and reliability of spreadsheets is known to be poor.
Bishop & McDaid (2007)
Never assume a spreadsheet is right, even your own.
Raffensperger (2001)
Spreadsheet shortcomings can significantly hamper an organization's business operation.
Reschenhofer & Matthes (2015)
Spreadsheet errors are still the rule rather than the exception.
Nixon & O'Hara (2010)
It is irrational to expect large error-free spreadsheets.
Panko (2013)
A significant proportion of spreadsheets have severe quality problems.
Ayalew (2007)
Every study that has looked for errors has found them... in considerable abundance.
Panko & Halverson (1996)
Spreadsheets... pose a greater threat to your business than almost anything you can imagine.
Howard (2005)
Untested spreadsheets are riddled with errors.
Miller (2005)
Spreadsheets contain errors at an alarmingly high rate.
Abraham, et al (2005)
60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.
Murphy (2007)
Spreadsheets are notoriously error-prone.
Cunha, et al (2011)
Spreadsheets are commonly used and commonly flawed.
Caulkins, Morrison, & Weidemann (2008)
Studies have shown that there is a high incidence of errors in spreadsheets.
Csernoch & Biro (2013)
The software that end users are creating... is riddled with errors.
Burnett & Myers (2014)
Spreadsheet errors have resulted in huge financial losses.
Abraham & Erwig (2007)
The issue is not whether there is an error but how many errors there are and how serious they are.
Panko (2007)
Spreadsheets have a notoriously high number of faults.
Rust, et al (2006)
Spreadsheets are easy to use and very hard to check.
Chen & Chan (2000)
Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.
Krishna, et al (2001)
Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.
Irons (2003)
Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...
Teo & Tan (1999)
Errors in spreadsheets are as ubiquitous as spreadsheets themselves.
Colbenz (2005)
Research on spreadsheet errors is substantial, compelling, and unanimous.
Panko (2015)
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