Featured Research

from universities, journals, and other organizations

The Science Of Collective Decision-making

Date:
September 21, 2007
Source:
Association for Psychological Science
Summary:
Why do some juries take weeks to reach a verdict, while others take just hours? How do judges pick the perfect beauty queen from a sea of very similar candidates? We have all wondered exactly why we did not win a certain award. Now, new psychological research explains how groups come to a collective decision.

Why do some juries take weeks to reach a verdict, while others take just hours? How do judges pick the perfect beauty queen from a sea of very similar candidates? We have all wondered exactly why we did not win a certain award. Now, new psychological research explains how groups come to a collective decision.

Related Articles


Jean-Franηois Bonnefon, a University of Toulouse psychologist, conducted the first empirical investigation of the "doctrinal paradox." This occurs when judges, say a hiring committee or a jury, must evaluate several factors about a candidate, (e.g. a possible employee or a defendant in a trial) and come to a majority decision. When different opinions arise, the way they conduct the majority vote can be more important than the opinions themselves.

For example, a seven-judge committee must decide whether to promote a candidate to a position requiring a young, trilingual person. Each judge estimates whether the candidate is young, and whether she is trilingual. In the end, 4 out of 7 judges think she is young and 4 out of 7 think that she is trilingual, but only two of the judges think she is both. How should the committee proceed? They can all vote on the profile, and reject the candidate, or they can vote separately on each criterion and promote the candidate.

Bonnefon investigated which voting procedure was preferred by judges, and how this preference could change in different contexts. He presented the aforementioned situation to over 1.000 participants. Their responses, which are outlined in the September issue of Psychological Science, showed that profile-voting was preferred for simplicity reasons. The preference declined when the criteria were not likely to be simultaneously met by the candidate and the judges were then more likely to adopt criteria-voting.

Bonnefon also points out that "Just as jurors tend to eschew conviction when they lack a clear majority, judges showed some tendency to adopt whichever of the voting procedures that yielded the most lenient decision."

Bonnefon writes that the doctrinal paradox is a "shadowy aspect of the majority rule," and that while the majority rule may be appealing to reach a quick decision, it is also critical to investigate its potential for inconsistencies.

Article:  "How Do Individuals Solve the Doctrinal Paradox in Collective Decisions? An Empirical Investigation." 


Story Source:

The above story is based on materials provided by Association for Psychological Science. Note: Materials may be edited for content and length.


Cite This Page:

Association for Psychological Science. "The Science Of Collective Decision-making." ScienceDaily. ScienceDaily, 21 September 2007. <www.sciencedaily.com/releases/2007/09/070920160230.htm>.
Association for Psychological Science. (2007, September 21). The Science Of Collective Decision-making. ScienceDaily. Retrieved April 25, 2015 from www.sciencedaily.com/releases/2007/09/070920160230.htm
Association for Psychological Science. "The Science Of Collective Decision-making." ScienceDaily. www.sciencedaily.com/releases/2007/09/070920160230.htm (accessed April 25, 2015).

Share This


More From ScienceDaily



More Mind & Brain News

Saturday, April 25, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Judge OKs 65-Year Deal Over NFL Concussions

Judge OKs 65-Year Deal Over NFL Concussions

AP (Apr. 23, 2015) — A judge has approved a potential $1 billion plan to resolve thousands of NFL concussion lawsuits filed by retired players. The NFL expects 6,000 of nearly 20,000 retired players to suffer from Alzheimer&apos;s disease or moderate dementia someday.(April 23) Video provided by AP
Powered by NewsLook.com
Research Says Complex Tools Might Not Be 'Our Thing' Anymore

Research Says Complex Tools Might Not Be 'Our Thing' Anymore

Newsy (Apr. 21, 2015) — The use of complex tools has often been seen as a defining characteristic of humanity, but that notion is now in question. Video provided by Newsy
Powered by NewsLook.com
Our Love Of Puppy Dog Eyes Explained By Science

Our Love Of Puppy Dog Eyes Explained By Science

Newsy (Apr. 17, 2015) — Researchers found a spike in oxytocin occurs in both humans and dogs when they gaze into each other&apos;s eyes. Video provided by Newsy
Powered by NewsLook.com
Scientists Find Link Between Gestational Diabetes And Autism

Scientists Find Link Between Gestational Diabetes And Autism

Newsy (Apr. 17, 2015) — Researchers who analyzed data from over 300,000 kids and their mothers say they&apos;ve found a link between gestational diabetes and autism. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins