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