The Likert scale. Respondents are asked to choose where they fall on a range of possible feelings about a thing, generally in the form of strongly dislike, dislike, strongly like, strongly disagree, a...
The traditional form of Hoshin Kanri, there is a grouping of four perspectives. It is no surprise that the balanced scorecard perspectives are mirror images (see Exhibit 1.8). As with the balanced sco...
Is a programmer who gets 99% of assignments done on time and 95% error free better than one who gets only 92% done on time but with a 99% error-free rate? Is total product quality higher if the defect...
• If it’s really that important, it’s something you can define. If it’s something you think exists at all, it’s something you’ve already observed somehow. • If it’s something important and something u...
Researchers have run experiments25 showing that experts can be trained to be better at estimating probabilities by applying a battery of estimation tests, giving the experts a lot of quick, repetitive...
Modeling the world mathematically is as uniquely a human trait as language or art, but you would rarely find anyone complaining of being reduced to a poem or reduced to a painting.
The fact is that the preference for ignorance over even marginal reductions in ignorance is never the moral high ground.
Performance measure. Throughout this book, the term performance measure refers to an indicator used by management to measure, report, and improve performance. Performance measures are classed as key r...
The objection to using stats boils down to nothing more than an irrational fear of numbers causing some to believe math somehow detracts from understanding or appreciation
Understanding how to measure uncertainty is key to measuring risk. Understanding risk in a quantitative sense is key to understanding how to compute the value of information. Understanding the value o...
Very few experts actually measure their performance over time, and they tend to summarize their memories with anecdotes. They are right sometimes and wrong sometimes, but the anecdotes they remember t...
The fact is that the preference for ignorance over even marginal reductions in ignorance is never the moral high ground. If decisions are made under a self-imposed state of higher uncertainty, policy...
Myth: When you have a lot of uncertainty, you need a lot of data to tell you something useful. Fact: If you have a lot of uncertainty now, you don’t need much data to reduce uncertainty significantly....
Bertrand Russell once said, Mathematics, rightly viewed, possesses not only truth, but supreme beauty. . . .
Bandwagon bias.
Anything you need to quantify can be measured in some way that is superior to not measuring it at all. —Gilb’s Law
Once managers figure out what they mean and why it matters, the issue in question starts to look a lot more measurable.
Any decision we think we are about to make is something that can be Googled before we commit to a choice.
We need to lose less often in the fight against the bad guys. Or, at least, lose more gracefully and recover quickly.
A cybersecurity expert can become well versed in technical details such as conducting penetration tests, using encryption tools, setting up firewalls, and much more—and still be unable to realisticall...
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