The persistence of wishful thinking.

@article{Brown2014ThePO,
  title={The persistence of wishful thinking.},
  author={Nicholas J. L. Brown and Alan D. Sokal and Harris L. Friedman},
  journal={The American psychologist},
  year={2014},
  volume={69 6},
  pages={
          629-32
        }
}
Comments on the article by Fredrickson and Losada (see record 2005-11834-001). Recently the current authors (Brown, Sokal, & Friedman, 2013) debunked the widely cited claim made by Fredrickson and Losada (2005) that their use of a mathematical model drawn from nonlinear dynamics (namely, the Lorenz equations from fluid dynamics) provided theoretical support for the existence of a pair of critical positivity-ratio values (2.9013 and 11.6346) such that individuals whose ratios fall between these… 

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References

SHOWING 1-10 OF 15 REFERENCES
The complex dynamics of wishful thinking: the critical positivity ratio.
TLDR
It is concluded that Fredrickson and Losada's claim to have demonstrated the existence of a critical minimum positivity ratio of 2.9013 is entirely unfounded and is urged to exercise caution in the use of advanced mathematical tools, such as nonlinear dynamics, and in particular to verify that the elementary conditions for their valid application have been met.
Updated thinking on positivity ratios.
TLDR
Even when scrubbed of Losada's now-questioned mathematical modeling, ample evidence continues to support the conclusion that, within bounds, higher positivity ratios are predictive of flourishing mental health and other beneficial outcomes.
Positive affect and the complex dynamics of human flourishing.
TLDR
Findings suggest that a set of general mathematical principles may describe the relations between positive affect and human flourishing.
Optimism predicting employees' creativity: The mediating role of positive affect and the positivity ratio
We examine how optimism predicts creativity both directly and through the mediating role of positive affect and the positivity ratio (the ratio between the frequency of positive and negative
The Role of Positivity and Connectivity in the Performance of Business Teams
Connectivity, the control parameter in a nonlinear dynamics model of team performance is mathematically linked to the ratio of positivity to negativity (P/N) in team interaction. By knowing the P/N
The Positivity Ratio and Functioning Under Stress
The positivity ratio reflects the ratio of positive affect to negative affect. In two studies, the authors investigated the relationship between positivity ratio and functioning under stress. Study 1
The ratio between positive and negative affect and flourishing mental health across adulthood
TLDR
Although the data supported the notion of a positivity ratio of 2.9 as a ‘critical value’ in young adulthood, this value did not equally well discriminate the mental health status of middle-aged and older adults.
The complex dynamics of high performance teams
An Introduction to Contemporary Statistics
Correction to Fredrickson and Losada
  • American Psychologist
  • 2005
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