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

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