Matus Grezo

Slovak Academy of Sciences | SAV · Institute of Experimental Psychology

Health-related philanthropy is essential for biobanks. Nonetheless, little is known about the roles of personality and trust in particular with respect to participation in biobanking. In a sample of 600 Slovaks, the present study aimed to examine whether the Big Five personality traits and interpersonal trusting beliefs, namely self-focused general...

The main aim of this study was to (a) test the construct validity of complex problem solving (CPS); (b) examine the ability to acquire knowledge as a mediator of the relationship between intelligence and CPS performance; and (c) investigate the personal need for structure as a moderator of the relationship between intelligence and knowledge acquisi...

The present study investigated the relationship between the Light and Dark Core of personality and self-reported adherence to COVID-19 containment measures. A gender-balanced representative sample of 600 Slovaks participated in the study. We formulated a mediation model, hypothesising that the relationship between Light and Dark Core and self-repor...

The present research conceptually replicates and extends the results of a study on the relation between individuals’ sex, their risk attitudes and stereotype threat (Carr & Steele, 2010). The authors reported that differences between men and women in risk aversion emerged only after activating negative stereotypes about women’s performance in mathe...

Using a representative sample of 400 Slovaks, the present study investigated the mediating role of subjective perception of financial threat to the relation between psychological resources and behavioural responses in the adaptation to financial stress posed by the COVID-19 pandemic. The results of structural equation modelling analyses showed that...

The theory of action versus state orientation suggests that state-oriented people are more susceptible to sunk cost fallacy than action-oriented people because they ruminate about past costs and are reluctant to change their course of actions. However, research on the role of action versus state orientation in sunk cost fallacy is fairly limited. T...

The aim of this study was to examine social value orientation as a moderator of the effect of framing on cooperative behavior. Participants in small social groups cooperated in nine iterated decisions within two different social dilemmas. After each decision, either negatively or positively framed information was provided. The results of the experi...

Ako je formovaná medziľudská dôvera? Prečo sú niektorí ľudia dôverčivejší než ostatní? Aký je rozdiel medzi vnímanou dôveryhodnosťou druhej osoby, zámerom dôverovať jej a dôverujúcim správaním? Prečo máme tendenciu dôverovať nám podobným ľuďom a upodozrievať cudzincov? Čo sa deje so spoločnosťou, ak dlhodobo nedôveruje svojim lídrom a inštitúciám?...

Ako je formovaná medziľudská dôvera? Prečo sú niektorí ľudia dôverčivejší než ostatní? Aký je rozdiel medzi vnímanou dôveryhodnosťou druhej osoby, zámerom dôverovať jej a dôverujúcim správaním? Prečo máme tendenciu dôverovať nám podobným ľuďom a upodozrievať cudzincov? Čo sa deje so spoločnosťou, ak dlhodobo nedôveruje svojim lídrom a inštitúciám?...

Purpose This meta-analysis reviews and summarizes the results of 34 studies to investigate the relationship between overconfidence and financial decision-making. Design/methodology/approach A correlation meta-analysis was conducted with three moderators of the relationship between overconfidence and financial decision-making examined: the type of...

The goal of this research was to investigate the effect of counterfactual thinking on escalation of commitment in decision-making in sunk costs conditions. We examined the impact of different types of counterfactuals (Cf) (upward and downward counterfactuals). Participants (n = 80) of the between-subject experimental design were randomly assigned i...

In this paper we provide results of confi rmatory factor analysis of shortened Slovak version of self-report inventory for appraisal one’s problem solving skills (Problem-Solving Inventory – PSI; Heppner & Petersen, 1982). Shortened version was administered to 114 participants. Similarly as in previous studies, results of confi rmatory factor analy...

Prior entrepreneurship research shows that individuals often possess biased expectations regarding their chances of success in the market compared to objective reality, as well as to their success and profitability compared to their peers. This distorted, biased view on one's chances of success is referred to as overconfidence. The present study ad...

In this study, we examined the relations between math anxiety, trait anxiety, and one’s perceived problem solving ability on a sample of 128 university students. Participants completed a revised version of the Fennema-Sherman Mathematics Anxiety Scale, The State-Trait Anxiety Inventory, and the shortened version of Problem Solving Inventory. The re...

Abstract: Many studies investigating the association between problem-solving skills, mental and physical health found that problem-solving ability was linked to stress, depression, maladaptive behavior and also physical health symptoms. In this study, we investigated the association between trait anxiety, math anxiety and problem-solving skills. Pa...

In this study, we analyze whether: 1) financial professionals manifest lower excessive optimism in predicting future stock indices returns; 2) excessive optimism occurs more when predicting future returns of indices reporting profits than indices reporting losses 3) more long-term predictions are more optimistic than short-term predictions. Three g...

The main objective of this research was to investigate the relationship between dispositional optimism, unrealistic optimism and two different overconfidence constructs – overestimation and overplacement effect. Participants of the research (n=100) completed self-evaluating questionnaire LOPS monitoring dispositional optimism; Vienna matrix test; s...

Some of the researches indicate that problem solving skills are a stronger predictor of physical health and perceived stress. In recent years, the importance to improve problem solving skills is highly promoted by OECD. In their Programme for International Student Assessment (PISA), Slovak students score significantly lower compared to the average...

The aim of this research was to compare the ability of financial professionals and lay people to estimate the future returns of financial assets and determine whether dispositional optimism relates with overconfidence in the estimation the future returns. Three groups of participants (n=251); a) employees of institutional investors (fund managers);...

Economic recession is often associated with economic stress, it significantly influences one’s mental health and decision making about one’s finances. The aim of the study was to investigate the role of dispositional optimism as a psychological resource in coping with economic hardship. In addition, we were interested in how this disposition affect...

Objectives. The aim of this study was: a) to investigate the influence of simple recognition heuristic on financial decision-making about the stock preference and evaluation, and b) to investigate whether the personal need for structure (PNS) is associated with heuristic processing. Sample and setting. The research sample consisted of 204 universit...

Economic recession is often associated with economic stress and it significantly influences individual’s mental and physical health. The aim of the study was to investigate how the economic situation influences one´s experiencing, his expectancies about economic development in future and how the dispositional optimism and arousability affect these...

Príspevok sa venuje vplyvu efektu nadmernej sebadôvery v usudzovaní a rozhodovaní profesionálov vo viacerých pracovných doménach, ako i špecificky u finančných profesionálov v oblasti investovania. Výsledky výskumov poukazujú na pozitívny vzťah efektu nadmernej sebadôvery s mierou expertízy. Ukazuje sa, že pri odhadovaní budúcich výnosov aktív sú n...

The economic recession influences many spheres of human´s life. It is associated with a job and income sources insecurity, economic stress, unwelcome life events and it significantly influences the decision making and behavior on financial markets and in one´s personal life. This paper highlights the potential negative impacts on one´s mental healt...

In this paper, authors present a theoretical and critical overview of research on the framing effect. Since Kahneman and Tversky’s experiment, there have been many empirical works examining this field and the framing effect has become an interdisciplinary concept studied in various contexts – economic, political or health decision making, and in co...

The aim of the research was to examine the impact of anger on moral reasoning and decision making. We were interested in whether anger leads to more punitive attributions and to greater willingness to help when one perceives immoral behavior. Participants (N=61) of the experimental design were randomly divided into two groups. The results show that...