scholarly journals Inaccurate Stereotypes from Rational Exploration

2021 ◽  
Author(s):  
Xuechunzi Bai ◽  
Susan Fiske ◽  
Tom Griffiths
Keyword(s):  
Optimal Solution ◽  
Past Research ◽  
Group Differences ◽  
Thompson Sampling ◽  
Cognitive Limitations ◽  
Real Group ◽  
Rational Choices ◽  
Alternative Proposal ◽  
Term Benefit

Inaccurate stereotypes -- perceived differences among groups that do not actually differ -- are prevalent and consequential. Past research explains stereotypes as emerging from motivational biases, cognitive limitations, and information deficits. An alternative proposal focuses on exploration: An initial arbitrary interaction, if rewarding enough, may discourage investigating alternatives that would be equal or better. Historical accidents can snowball, through locally rational choices, into globally inaccurate generalizations. Thus, inaccurate stereotypes can emerge from otherwise rational exploration, even in the absence of real group differences. Ironically, the mere act of rationally choosing between groups with the goal of maximizing the long-term benefit of local interactions is enough to produce globally inaccurate stereotypes. Formally describing this problem using multi-armed bandits shows how an optimal solution with existing psychological support (Thompson sampling) produces inaccurate stereotypes. This result replicates in two large online experiments (N = 2404). This minimal-process paradigm thus suffices to produce bias.

Comparison of Auditory, Language, Memory, and Attention Abilities in Children With and Without Listening Difficulties

2020 ◽  
Vol 29 (4) ◽  
pp. 710-727
Author(s):  
Beula M. Magimairaj ◽  
Naveen K. Nagaraj ◽  
Alexander V. Sergeev ◽  
Natalie J. Benafield
Keyword(s):  
Auditory Processing ◽  
Short Term Memory ◽  
Group Differences ◽  
Long Term Memory ◽  
Short Term ◽  
Significant Group ◽  
Term Memory ◽  
Memory And Attention ◽  
Speed And Accuracy

Objectives School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas. Design Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined. Results In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ. Conclusions Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children's functional listening problems. In addition, children's relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children's listening challenges. Supplemental Material https://doi.org/10.23641/asha.12808607

751 Long-term benefit of a hospital based heart failure programme: downgrading the risk of class IV patients

2003 ◽  
Vol 2 (1) ◽  
pp. 161
Author(s):  
E RYAN ◽  
C OLOUGHLIN ◽  
M LEDWIDGE ◽  
B TRAVERS ◽  
M RYDER ◽  
...  
Keyword(s):  
Heart Failure ◽  
Term Benefit ◽  
Class Iv

The Value of Subjective Appreciation in the Medical Record – II. The Evalution of the General Condition of the Patient

1978 ◽  
Vol 17 (02) ◽  
pp. 103-105
Author(s):  
D. Lahaye ◽  
D. Roosels ◽  
J. Viaene
Keyword(s):  
Medical Record ◽  
General Condition ◽  
Normal Weight ◽  
Group Differences ◽  
Computer File ◽  
Real Group ◽  
Empiric Data ◽  
Medical Examinations ◽  
Lower Limits

Based on the analysis of 13,110 medical examinations performed on a standardized population of pneumoconiosis patients recorded on the F.O.D. computer file, the authors describe the value of the subjective estimations of »obesity«, »thinness« or »normal weight« by their correlation with the observed weight and height. Although there are striking differences in appreciation between the physicians performing the examinations, the qualifications »obese«, »thin« or »normal« correspond with real group differences in weight, between certain limits which can be defined. The ratio between the observed weight and the expected weight (using the Broca formula) shows the same pattern. In tins way it becomes possible to propose upper and lower limits for obesity, thinness and normal weight based on purely empiric data. Feeding back this information to the examining physicians should help reduce the differences between physicians and improve the results. Therefore, the authors find it useful to keep such information in the computer file.

Anthropologic Relationships among Prehistoric Northeastern Amerindians

1980 ◽  
Vol 1 (2) ◽  
pp. 145-159
Author(s):  
Edward F. Harris ◽  
Nicholas F. Bellantoni
Keyword(s):  
New York ◽  
Gene Flow ◽  
Material Culture ◽  
New England ◽  
Cultural Barriers ◽  
Group Differences ◽  
Phenetic Analysis ◽  
Trade Relationships ◽  
Good Agreement

Archaeologically defined inter-group differences in the Northeast subarea ate assessed with a phenetic analysis of published craniometric information. Spatial distinctions in the material culture are in good agreement with those defined by the cranial metrics. The fundamental dichotomy, between the Ontario Iroquois and the eastern grouping of New York and New England, suggests a long-term dissociation between these two groups relative to their ecologic adaptations, trade relationships, trait-list associations, and natural and cultural barriers to gene flow.

scholarly journals Multiple Sclerosis Treated with Antithymocyte Globulin — A Five Year Follow-Up

1978 ◽  
Vol 5 (2) ◽  
pp. 175-178 ◽  
Author(s):  
L.F. Kastrukoff ◽  
D.R. McLean ◽  
T.A. McPherson
Keyword(s):  
Multiple Sclerosis ◽  
Total Protein ◽  
Antithymocyte Globulin ◽  
Gamma Globulin ◽  
Multiple Sclerosis Patients ◽  
Term Benefit

SUMMARY:Multiple sclerosis patients treated with antithymocyte globulin (ATG) were re-evaluated after five years. No long term benefit was found. Notably, the group of patients with an elevated gamma globulin to total protein ration in their C.S.F. and who did particularly well after treatment with ATG also failed to show any long term benefit. Few long term detrimental effects of ATG immunosuppression were identified. The implications of the results are discussed as they relate to the use of immunosuppression in multiple sclerosis.

Tainted Love: The Trials and Tribulations of a Career in Animal Studies

2019 ◽  
Vol 27 (4) ◽  
pp. 361-382 ◽  
Author(s):  
Siobhan O’Sullivan ◽  
Yvette Watt ◽  
Fiona Probyn-Rapsey
Keyword(s):  
Higher Education ◽  
Animal Studies ◽  
Academic Career ◽  
Term Benefit

AbstractDeveloping an academic career can be exciting, rewarding and stimulating. It can also be challenging, disheartening, and highly insecure. Results from a survey of Animal Studies (AS) scholars identifies reasons why pursuing a career in AS might generate additional challenges, over and above those experienced by academics generally. For example, 44 percent of respondents stated that in their view, undertaking research in AS “creates challenges for an academic career.” This is compared to just 16 percent who thought that it is an advantage. Yet despite the challenges, there is much that is positive about AS. Participants described being in “dialogue with clever colleagues,” viewed their work as “totally engaging,” and reported feeling “morally useful.” This in turn affords AS scholars an authenticity that may be of long-term benefit in the competitive and constantly transforming world of higher education.

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