Business Without the Bullsh*t: 49 Secrets and Shortcuts You Need to Know (37 page)

BOOK: Business Without the Bullsh*t: 49 Secrets and Shortcuts You Need to Know
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But just a moment! How can Jim possibly know if his project will finish on time when he doesn’t yet know the test results? Therefore, Jim’s yes is a half-truth that should signal Jill to press the point further.

Jill
: What if the tests are negative?

Identifying people who tell half-truths allows you to assess whether they can be trusted and whether you can believe their promises and commitments, which allows you to make better decisions.

3. HOW TO SPOT AN INDIRECT LIE.

An indirect lie happens when somebody passes along information that he or she knows is untrue, by claiming he heard that piece of information from somebody else.

For example, Fred knows a layoff is imminent, but when asked about it says, “Jerry doesn’t think so.” Fred may technically be telling the truth (because Jerry is misinformed), but the statement is intended to mislead.

Here’s another example. You can turn almost any false statement into something that’s technically true by preceding it with the phrase “It’s rumored that…” Such statements are always “true” because the statement
starts the rumor
.

To spot an indirect lie, poke at the source that the possible liar is citing. If you find it wanting, ask the question again more directly. For example:

Jill
: Is a layoff coming?

Fred
: Jerry doesn’t think so.

Jill
: And is Jerry in a position to know for certain?

Fred
: Uh… maybe…

Jill
: To the best of your knowledge, is a layoff coming?

Once again you’ve maneuvered Fred into a position in which he must tell either the truth or a bald-faced lie.

SHORTCUT

WORKPLACE LIES

LIARS
reveal themselves by their body language.

LIARS
are often overly insistent that they’re telling the truth.

HALF-TRUTHS
are technically true but intended to mislead.

FLUSH
out half-truths by pressing for specifics.

INDIRECT
lies attribute the lie to somebody not present.

FLUSH
out indirect lies by questioning the source.

SECRET
46
How to Identify a Bogus Statistic

Mark Twain wrote, “There are three kinds of lies: lies, damned lies, and statistics.” Since statistics are traded around the workplace with gusto, it’s in your interest to be able to identify the ones that misrepresent the truth. To do this, ask these five questions:

1. IS THE DATA SOURCE OBJECTIVE?

Statistics are only as valid as the data that lies behind them. As a general rule, if the person or organization that gathers the data will receive some kind of financial benefit if the data is skewed, the data will be skewed.

For example, if a corporation responsible for a large amount of pollution funds a study “proving” that the pollution is harmless, the data in that study is almost guaranteed to be skewed, because otherwise the polluter would be forced to spend money to clean it up.

2. IS THE SAMPLING RANDOM?

Companies frequently run Web polls in which people accessing the website decide whether they want to participate in the survey.
However, any statistics based on these “self-selected” polls are automatically bogus.

For example, if I stick on a website a question like, “How well are we doing on customer service?” only people who have had very good or very bad customer service experiences will bother to answer. You’ll have no idea what the typical customer thinks.

3. DOES IT MISUSE THE CONCEPT OF AN AVERAGE?

Many bogus statistics use averages in a way that’s clearly intended to mislead. For example, in a room with one billionaire and 999 people who are penniless, the average wealth per person is a million dollars. While true, the statistic is misleading.

Rather than averages, valid statistics tend to use the concept of a
median
, which is the middle value when all values are arranged in order. In the example above, the median wealth per person is zero dollars, regardless of the presence of the billionaire.

4. DOES IT ASSUME CAUSALITY?

Even if two sets of data seem to be in lockstep, you have no idea whether that is meaningful until you know for certain that one thing caused the other. Correlation is not causation.

For example, if your sales revenue spikes upward after your salespeople attend a sales training class, the increased revenue
may
be the result of sales training or
may
be the result of something unrelated, like an improvement in economic conditions.

5. IS THE GRAPHIC REASONABLE?

Graphical presentations of data (whether bogus or real) can also mislead. For example, by tweaking the scale of a graph, you can make a small difference look like a big difference (or vice versa):

The graphic gives the impression that there’s been a huge increase in sales, when in fact, sales increased only by a measly .1 percent. Rule of thumb: the fancier the graphs, the more likely it is that the presentation is purposefully misleading.

Another way to distort graphics is to present insignificant amounts in a way that makes them seem significant. For example, if you ask nine customers a question and eight of them answer yes, you create a graphic like this:

However, if you’ve got thousands of customers, it’s impossible that those nine are representative of your entire customer base. You end up with a statistic that seems authoritative but is in fact entirely bogus.

SHORTCUT

BOGUS STATISTICS

IF
the data source makes money on the statistic, the data is probably bogus.

IF
the people surveyed volunteered to be surveyed, the statistic is meaningless.

THE
concept of an average is often abused; ask, “What’s the median?”

WHEN
things happen in parallel they’re not necessarily related.

GRAPHICS
tend to make statistics appear more significant than they are.

BOOK: Business Without the Bullsh*t: 49 Secrets and Shortcuts You Need to Know
11.41Mb size Format: txt, pdf, ePub
ads

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