Although scope creep can arise independently of cognitive biases, the role of cognitive biases in scope expansion is powerful, because cognitive biases influence our decisions without our knowing. And among the most insidious of these biases is confirmation bias. Confirmation bias affects the objectivity of the evidence-gathering process, and then once evidence is presented, it affects our ability to weigh evidence objectively. Under the influence of confirmation bias, we tend to:
- Seek evidence that supports our preconceptions
- Avoid seeking evidence that conflicts with our preconceptions
- Give preferential weight to confirmatory evidence
- Reject or discount disconfirming evidence
For example, when considering adding features to a planned product — features we favor — we tend to examine critically projections of cost and schedule that predict trouble. By contrast, we tend to examine less critically any rosy sales projections. When considering combining two projects located at different sites, people who favor the combination tend to accept projections of cost savings less critically than they would treat cost or schedule projections indicating problems arising from merging the projects and relocating one of them.
Here are four indicators that confirmation bias might be driving a scope expansion decision.
- Political rivalry and feuds
- One political actor might use scope expansion to attack a rival by acquiring responsibility for efforts that are the responsibility of the rival. The intense emotions that typically underlie such plots are fertile ground for confirmation bias.
- Masking past offenses and performance issues
- When an effort faces financial or schedule trouble, expanding its scope to enable it to acquire a healthier sibling effort can conceal much of its trouble, especially if resources from the healthy effort can be harvested to repair or disguise the problems of the troubled effort. The fears that accompany such situations make decision makers vulnerable to confirmation bias.
- Absence of disconfirmation indicators
- For efforts we Any high-impact organizational
decision probably ought to also
include anti-goals that, if met,
trigger questioning the
wisdom of that decisionundertake, we usually define success as achieving specific goals. But any high-impact organizational decision probably ought to also include anti-goals that, if met, trigger questioning the wisdom of that decision. For example, if we don't satisfy condition C by date D, we will revisit the decision; or if a competitor enters the market before date D, we will reconsider the decision. When goals are clear, but anti-goals are missing, poorly defined, or ignored, confirmation bias might be playing a role.
- Reliance on anecdotal "evidence"
- Anecdotes can illustrate — nothing more. They contain no information about the prevalence of the mechanisms they exemplify. Proponents of a scope expansion can use anecdotes to illustrate their arguments, but when they fail to offer estimates of the importance of the phenomena the anecdotes illustrate, the use of anecdotes suggests the effects of confirmation bias. See "The Power and Hazards of Anecdotes: I," Point Lookout for December 31, 2014, for more.
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More articles on Project Management:
- Project Improvisation as Group Process
- When project plans contact reality, things tend to get, um, a bit confused. We can sometimes see the
trouble coming in time to replan thoughtfully — if we're nearly clairvoyant. Usually, we have
to improvise. How a group improvises tells us much about the group.
- The Politics of the Critical Path: I
- The Critical Path of a project or activity is the sequence of dependent tasks that determine the earliest
completion date of the effort. If you're responsible for one of these tasks, you live in a unique political
- Just-In-Time Hoop-Jumping
- Securing approvals for projects, proposals, or other efforts is often called "jumping through hoops."
Hoop-jumping can be time-consuming and frustrating. Here are some suggestions for jumping through hoops
- The Risks of Too Many Projects: II
- Although taking on too many projects risks defocusing the organization, the problems just begin there.
Here are three more ways over-commitment causes organizations to waste resources or lose opportunities.
- Risk Creep: II
- When risk events occur, and they're of a kind we never considered before, it's possible that we've somehow
invited those risks without realizing we have. This is one way for risk to creep into our efforts. Here's
Part II of an exploration of risk creep.
Forthcoming issues of Point Lookout
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- Typical approaches to shortening time-to-market for new products usually involve accelerating problem solving. Accelerating problem definition can also help. Available here and by RSS on January 29.
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- Much workplace bullying goes unrecognized. Three reasons: (a) conventional definitions of bullying exclude much actual bullying; (b) perpetrators cleverly evade detection; and (c) cognitive biases skew our perceptions so we don't see bullying as bullying. Available here and by RSS on February 5.
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- The Power Affect: How We Express Our Personal Power
Many people who possess real organizational power have a characteristic demeanor. It's the way they project their presence. I call this the power affect. Some people — call them power pretenders — adopt the power affect well before they attain significant organizational power. Unfortunately for their colleagues, and for their organizations, power pretenders can attain organizational power out of proportion to their merit or abilities. Understanding the power affect is therefore important for anyone who aims to attain power, or anyone who works with power pretenders. Read more about this program.