[ View menu ]

Archive for 'Ideas'

How long do you need to flip a coin to see a streak?

Filed in Encyclopedia ,Ideas ,R
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

STREAK RESULTS FOR LIKELY (>50%) and HIGHLY LIKELY (>99%) Click to enlarge From research on the hot hand to the observation that people don’t create enough streaks when instructed to create pseudo random data, the decision science community is pretty interested in the perception of streaks. One day we got to wonder, how long would […]

WHEN THE REVOLUTION CAME FOR AMY CUDDY

Filed in Gossip ,Ideas ,Research News
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

COMPELLING WRITING The New York Times just came out with an article called “When the Revolution Came for Amy Cuddy” which is about the science behind an extremely popular TED Talk, and is also about the replication crisis more generally. As Decision Science News readers, we are confident you will find much to agree within […]

Does cooperation in the prisoner’s dilemma unravel after ridiculously many repeated plays?

Filed in Articles ,Encyclopedia ,Ideas ,Research News
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

GUEST POST BY SID SURI: MONTH LONG PRISONER’S DILEMMA Figure 1: All the games and random rematchings in one out of the twenty sessions we conducted. Each block of green/red shows a game where green represents cooperation and red represents defect. Curves between the games represent how players were randomly rematched. DSN readers, you are […]

The Society for Judgment and Decision Making (SJDM) now has a blog

Filed in Encyclopedia ,Ideas ,SJDM
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

SJDM LAUNCHES THE NEW IT’S YOUR CHOICE BLOG The Society for Judgment and Decision Making (JDM Society) has gone a long time without a web log. They have a journal, a newsletter, and a fine conference, but until recently no blog to call their own. That changes now with the launch of It’s Your Choice, […]

How much will that Texas rain be

Filed in Encyclopedia ,Ideas ,R
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

PUTTING 35 INCHES OF RAIN IN PERSPECTIVE We are always interested in putting numbers into perspective, so we were interested in this article in which they put the Hurricane Harvey’s rain into perspective. They’re predicting 30-40 inches of rain in a few days in Texas. They asked an expert to put that into perspective and […]

Five kinds of weather you’ll meet in America

Filed in Encyclopedia ,Ideas ,R
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

K-MEANS CLUSTERING, A WORKHORSE OF DATA SCIENCE AND MACHINE LEARNING CLICK TO ENLARGE The USA is a large country. How different are people’s experiences of the weather depending on where they live? To look into this question, we downloaded high temperature data for over 1,300 airport weather stations in the contiguous USA for every day […]

Judgment and Decision Making leads in open data

Filed in Articles ,Gossip ,Ideas ,Research News ,SJDM
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

JDM IS TOO LEGIT TO CEASE IN ITS LEGITIMACY We came across this article that looks at the relationship between sharing data and other variables of interest. We were especially interested in its Figure 1 which shows the percentage articles having open data. The journals listed are: JDM – Judgment and Decision Making PLOS – […]

Weighted population density

Filed in Encyclopedia ,Ideas ,R
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

DENSITY THE AVERAGE PERSON EXPERIENCES CLICK TO ENLARGE In Alaska, there’s about one person for each square mile of land. You might picture a typical Alaskan not being able to see the next house. But it’s not that way of course. Most of Alaska is uninhabited. People have crowded into a few areas. The average […]

Counterintuitive problem: Everyone in a room keeps giving dollars to random others. You’ll never guess what happens next.

Filed in Encyclopedia ,Ideas ,R
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

This was unexpected.

Counterintuitive probability problem of the day

Filed in Encyclopedia ,Gossip ,Ideas ,R
Subscribe to Decision Science News by Email (one email per week, easy unsubscribe)

TWO SHOT RUSSIAN ROULETTE WITH 2 BULLETS OR AN EQUAL CHANCE OF 1 or 3 BULLETS With p as the probability of dying on one shot, this figure shows how to get the probability of living through the game. Peter Ayton is giving a talk today at the London Judgement and Decision Making Seminar Imagine […]