An analysis and generalization of Venn's diagrammatic decision procedure

Summary When testing logical formulae for validity by applying Venn's diagrams we are using a kind of picture writing i. e. a writing in which certain facts are represented by drawings rather than sentences. This diagrammatic decision procedure may however be translated into ordinary language. Translating for instance the respective procedure of testing the mood Darii we obtain the following reasoning.     

Learning From Peers’ Eye Movements in the Absence of Expert Guidance: A Proof of Concept Using Laboratory Stock Trading,Eye Tracking,and Machine Learning

Existing research shows that people can improve their decision skills by learning what experts paid attention to when faced with the same problem. However, in domains like financial education, effective instruction requires frequent, personalized feedback given at the point of decision, which makes it time‐consuming for experts to provide and thus, prohibitively costly. We address this by demonstrating an automated feedback mechanism that allows amateur decision‐makers to learn what information to attend to from one another, rather than from an expert. In the first experiment, eye movements of N = 100 subjects were recorded while they repeatedly performed a standard behavioral finance investment task. Consistent with previous studies, we found that a significant proportion of subjects were affected by decision bias. In the second experiment, a different group of N = 100 subjects faced the same task but, after each choice, they received individual, machine learning‐generated feedback on whether their pre‐decision eye movements resembled those made by Experiment 1 subjects prior to good decisions. As a result, Experiment 2 subjects learned to analyze information similarly to their successful peers, which in turn reduced their decision bias. Furthermore, subjects with low Cognitive Reflection Test scores gained more from the proposed form of process feedback than from standard behavioral feedback based on decision outcomes.     

On Strong Attitudes and Group Deliberation: Relationships,Structure, Changes,and Effects

Drawing on quasi‐experimental data from participants in structured and moderated deliberations on sexual minority rights in Poland, this study tests the relationship between attitude importance, certainty, intensity, and extremity. This study also examines the antecedents of these attributes and their consequences for several democratically important outcomes (i.e., perceived disagreement, negative affect, attitude polarization, self‐reported polarization, argument repertoire, and political participation). This study further asks whether these attributes exert different effects than a composite attitude strength index. Although factor analysis suggests that these attributes represent one construct, they are differently affected by deliberation and exert differential effects. The analyses further reveal that relying on the composite index obscures substantial information and inaccurately represents strength‐related processes and functions. Theoretical, methodological, and practical implications are discussed.     

Religiosity and the Spread of COVID-19: A Multinational Comparison

Journal of Religion and Health - This article considers the relationships between population religiosity and the coronavirus pandemic situation across different countries....     

Hope as a Psychological Factor Affecting Quality of Life in Patients With Psoriasis

Clinical observations and medical reports indicate that psoriasis has a tremendous impact on patients’ lives, lowering their quality in many important areas. However, the vast majority of research deals only with health-related issues. This study aimed to compare the general quality of life of psoriasis patients and healthy volunteers by examining psychological variables thought to modify the quality of life. 42 patients with psoriasis and 42 healthy volunteers matched for gender, age and education level were tested. Flanagan Quality of Life Scale was used to evaluate general quality of life. Basic hope level was assessed with Basic Hope Inventory. Trait hope was estimated using Trait Hope Scale. Psoriasis Area Severity Index was used to assess the severity of the disease. Psoriasis patients have a significantly lower overall quality of life (p?=?0.05), modified by Physical and Material Well-being (p?=?0.01), Personal Development and Fulfillment (p?=?0.03), and Recreation (p?=?0.04). They also have lower levels of trait hope (p?=?0.04) and its agency component (p?=?0.01). There were moderate, negative significant correlations with basic hope and such components of quality of life as Physical and Material Well-being (p?=?0.03, r?=?? 0.34) and Relations with other People (p?=?0.02, r?=?? 0.35). These results support the hypothesis of a reduced general quality of life and trait hope in psoriatics. Thus, psychological help for people suffering from dermatological disorders might be as important as medical intervention. Basic hope can be treated as a resource in coping with these disorders and trait hope as a resource conducive to well-being.     

Bocheński on authority

Józef Maria Bocheński introduced an important distinction between deontic and epistemic authority. A typical example of epistemic authority is the relation of a teacher to his students; a typical example of deontic authority is the relation between an employer and his employee. The difference between the two lies in domains of authority: declarative sentences make up the domain in the case of epistemic authority, orders—in the domain of deontic authority. In the article, I analyze in detail the concepts of the two kinds of authority and propose some new explications. The concept of epistemic authority is distinguished from the concept of infallibility and expertise; and the concept of deontic authority is distinguished from the concept of sovereign. I interpret various kinds of deontic authority in the light of the theory of imperative sentences. The concepts of gradation and de-gradation of authority are introduced and explicated.     

Motor Performance in the Third,Not the Second Month,Predicts Further Motor Development

ABSTRACT. The aim was to verify if motor performance at second or third month of life better predicts further development. The global motor development was assessed by a neurologist and by a physiotherapist in 111 children at 2, 3, 6, and 9 months. At 2 and 3 months a physiotherapist also performed the assessment of qualitative elements. The physiotherapeutic assessment in the third month showed higher compatibility with the neurological assessment. Proper motor performance at third month could ensure the level of at least 7 months in the ninth month of life. Qualitative score above 7 of 15 points in the third month ensured proper development in ninth month. Third month of life is a better predictor of further motor development.     

On the completeness of a certain system of arithmetic of whole numbers in which addition occurs as the only operation

Presburger's essay on the completeness and decidability of arithmetic with integer addition but without multiplication is a milestone in the history of mathematical logic and formal metatheory. The proof is constructive, using Tarski-style quantifier elimination and a four-part recursive comprehension principle for axiomatic consequence characterization. Presburger's proof for the completeness of first order arithmetic with identity and addition but without multiplication, in light of the restrictive formal metatheorems of Gödel, Church, and Rosser, takes the foundations of arithmetic in mathematical logic to the limits of completeness and decidability.