Wednesday, March 8, 2017

Word of the Day: confirmation bias

Word of the Day WhatIs.com
Daily updates on the latest technology terms |March 8, 2017
confirmation bias

Confirmation bias is a type of mistake that occurs in thinking when information that confirms a pre-existing belief is given priority over information that does not support a preexisting belief. Informally, confirmation bias is sometimes referred to as wishful thinking.

Confirmation bias occurs when someone filters out facts and opinions that don't coincide with the person's preconceived notions. When a decision is made before all the data is examined, there is a danger of falling prey to confirmation bias, even when someone is trying to be objective.

In predictive modeling and big data analytics, confirmation bias can steer an analyst towards seeking evidence that favors an initial hypothesis. For example, the analyst might frame survey questions in such a way that all answers support a particular point of view. Interpretation of information can also hold a bias. Two analysts can review the same data, but select different aspects of the data to support each of their individual preferred outcomes. Because people tend to remember information that reinforces the way they already think, memory also plays a part in confirmation bias. This effect is called confirmatory memory or selective recall.

Confirmation bias can lead to data confabulation, the selective and possibly misleading use of data to support a decision that has already been made. To deal with and combat confirmation bias, it is important to be aware of its existence and the danger it poses. It is also important to actively seek out information that disagrees with a preexisting point of view, ask opposing or challenging questions and keep information channels open to consistently update current beliefs.

Quote of the Day

"We tend to accept only new information that supports our old ideas. This is just as likely -- and even more dangerous -- in the realm of analytics, where outcomes can influence decisions at the highest levels." - Scott Robinson

 

Trending Terms

predictive modeling
negativity bias
critical thinking
data confabulation

cognitive bias

 
Learning Center

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Common biases that can taint analytics analysis
Businesses are increasingly using data to drive decisions, but these common biases can still muddle analytics analysis.

Why bias is among the data science problems
Data science problems include the serious potential for bias. Data scientist Cathy O'Neil explains why we need to pair data scientists with sociologists

Software testing techniques: Overcoming biases
Expert Gerie Owen offers software testing techniques to help overcome biases and boost code quality and answers the pressing question: "How did I miss that bug?"

Data hoarding and bias among big challenges in big data and analytics
Companies will rise and fall on their ability to use big data and analytics, research suggests, but human foibles make success anything but certain.

Writing for Business

To remain effective, analytical processes must ________ fine-tuned.
A. constantly stay
B. stay constantly

Answer

 

 

 

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