Nine Project Management Fallacies: IV

Nan picked up the last chunk of cookie and ate it. Peter and Trish had long ago finished theirs, but Nan liked making cookies last. "The critical thinking fallacies were my favorites," she said. "I like learning how to think more clearly."

Peter sipped his coffee. "Mmm." He swallowed. "But how do we avoid those fallacies?"

Trish was intrigued. "Yeah, and I know what I'd put at the top of the checklist."

"OK, I'll bite," said Peter. "What?"

Trish was ready. "The Nine Project Management Fallacies."

Not a bad idea. These last three fallacies (Part IV of a little catalog of the fallacies of project management) are errors of critical thinking. For Part III, see "Nine Project Management Fallacies: III," Point Lookout for December 28, 2005.

The Normative Fallacy

This fallacy holds that when we ask some people their opinions, and most of them agree, then they're correct. Usually we select people nonrandomly, choosing those who will give us desirable answers, or those we can trust, or those of high rank.

Nonrandom polling might provide comfort, but it's hardly scientific, and it almost always leads to biased conclusions.

To get truly useful polling data, you must poll people randomly.

The Availability Heuristic

In risk management, we often estimate the probabilities of certain events. We're using the Availability Heuristic [Tversky 1973] when we estimate these probabilities by sensing the difficulty of imagining or understanding the string of events that lead to the risk.

For instance, when we ask people whether death resulting from being attacked by a shark is more or less likely than from being hit by falling airplane parts, they usually answer that death by shark attack is more likely. Actually, death from being hit by falling airplane parts is 30 times more likely, but people are fooled because it's easier to imagine shark attacks, which are more common.

Estimating probabilities is unlikely to produce reliable results. For this reason, the Availability Heuristic is usually considered an example of a cognitive bias. Use real data, or use huge error bars.

The Grandiosity Fallacy

Confronting a problem, we sometimes address a generalization of the problem instead, hoping to solve a host of similar problems, and thereby solving the original problem almost "for free." Rarely does the reality match the wish.

Grandiosity usually generates two kinds of trouble. First, it's often more expensive and time-consuming than originally estimated. Second, the people of the organization rarely want the general solution. If they did, they probably would have sought it in the first place.

Sometimes customers don't know the value of the general solution, and telling them about it might produce a better outcome. But usually they want only what they asked for. Work with them on that first.

Track the incidence of these nine fallacies in your organization. Use them to inspect project plans. Probably your projects will have fewer surprises, or at least you'll be just a little less likely to be hit by falling airplane parts.   First issue in this series   Top    Next Issue

Are your projects always (or almost always) late and over budget? Are your project teams plagued by turnover, burnout, and high defect rates? Turn your culture around. Read 52 Tips for Leaders of Project-Oriented Organizations, filled with tips and techniques for organizational leaders. Order Now!

For more on cognitive biases, see "The Focusing Illusion in Organizations," Point Lookout for January 19, 2011.

Footnotes

Your comments are welcome

About Point Lookout

Thank you for reading this article. I hope you enjoyed it and found it useful, and that you'll consider recommending it to a friend.

This article in its entirety was written by a human being. No machine intelligence was involved in any way.

Point Lookout is a free weekly email newsletter. Browse the archive of past issues. Subscribe for free.

Support Point Lookout by joining the Friends of Point Lookout, as an individual or as an organization.

Do you face a complex interpersonal situation? Send it in, anonymously if you like, and I'll give you my two cents.

Related articles

More articles on Emotions at Work:

Are You Taking on the Full Load?

Taking on the full load is what we do when we feel fully responsible for either the success or the failure of some organizational activity. Instead of asking for help, we take extreme measures to execute responsibilities that might not even be ours.

Smart Bookshelves

If you like to browse in bookstores, you probably know the thrill of new ideas and new perspectives. When I find a book worth reading, I want to own it, and that's how it gets to my shelf. Here are some tips to help you read more of what you really want to read.

Begging the Question

Begging the question is a common, usually undetected, rhetorical fallacy. It leads to unsupported conclusions and painful places we just can't live with. What can we do when it happens?

Strategy for Targets of Verbal Abuse

Many targets of verbal abuse at work believe that they have just two strategic options: find a new job, or accept the abuse. In some cases, they're correct. But not always.

The Goal Is Not the Path

Sometimes, when reaching a goal is more difficult than we thought at first, instead of searching for another way to get there, we adjust the goal. There are alternatives.

See also Emotions at Work and Emotions at Work for more related articles.

Forthcoming issues of Point Lookout

Coming February 26: Devious Political Tactics: Bad Decisions

When workplace politics influences the exchanges that lead to important organizational decisions, we sometimes make decisions for reasons other than the best interests of the organization. Recognizing these tactics can limit the risk of bad decisions. Available here and by RSS on February 26.

And on March 5: On Begging the Question

Some of our most expensive wrong decisions have come about because we've tricked ourselves as we debated our options. The tricks sometimes arise from rhetorical fallacies that tangle our thinking. One of the trickiest is called Begging the Question. Available here and by RSS on March 5.

Coaching services

I offer email and telephone coaching at both corporate and individual rates. Contact Rick for details at rbrenjTnUayrCbSnnEcYfner@ChacdcYpBKAaMJgMalFXoCanyon.com or (650) 787-6475, or toll-free in the continental US at (866) 378-5470.

Get the ebook!

Past issues of Point Lookout are available in six ebooks:

• Get 2001-2 in Geese Don't Land on Twigs (PDF, )
• Get 2003-4 in Why Dogs Wag (PDF, )
• Get 2005-6 in Loopy Things We Do (PDF, )
• Get 2007-8 in Things We Believe That Maybe Aren't So True (PDF, )
• Get 2009-10 in The Questions Not Asked (PDF, )
• Get all of the first twelve years (2001-2012) in The Collected Issues of Point Lookout (PDF, )

Are you a writer, editor or publisher on deadline? Are you looking for an article that will get people talking and get compliments flying your way? You can have 500-1000 words in your inbox in one hour. License any article from this Web site. More info