Łukasz Jach

University of Silesia in Katowice · Institute of Psychology

During the COVID-19 pandemic, many students refused to turn on their webcams during synchronous online classes. Students may intentionally remain invisible to teachers and colleagues for reasons related to their motivation and emotions. However, less is known about the relationships between students’ activity and frequency of turning on the webcam...

Facial hair is a sexually dimorphic trait with potential evolutionary and sociocultural functions. Bearded men are perceived as dominant, aggressive, and masculine, but also as having better parenting skills. Men may intentionally manage the amount and shape of their facial hair as a part of their self-promotion strategy; however, facial hair manag...

Body esteem, self-esteem, and sexual satisfaction influence people’s well-being so it is important to look for psychological factors that may contribute to their improvement. However, men and women differ in the factors that affect their body esteem, self-esteem, and sexual satisfaction. We analyzed links between men’s and women’s self-esteem, body...

Men with distinct facial hair are perceived as more aggressive, dominant, older, and more formidable, mostly by other men. However, despite considerable interest in the social perception of beardedness, only a few studies have explored men’s preferences toward facial hair. We investigated men’s preferences toward facial hair and whether their judgm...

Moral foundations (i.e., care, fairness, loyalty, authority, and purity) are systems that help people make important decisions. We propose a new approach to the scoring of moral foundations by measuring their relative importance (i.e., how important the foundation is compared to others). In Study 1 (N = 1283), we observed that absolute and relative...

Unlabelled: The COVID-19 pandemic and preventive measures undertaken by many governments have had a significant impact on family relationships, which could result in worsened parenting. In our study, we used network analysis to examine the dynamic system of parental and pandemic burnout, depression, anxiety, and three dimensions of relationship wi...

Background The scientistic worldview is characterized by the tendency to justify beliefs and behavior with scientific findings and to function on the basis of theorems and opinions formulated by scientists. The aim of this study was to test whether the attitudes typical for the scientistic worldview could be related to beliefs and behaviors that ma...

A sense of humor is a desirable characteristic in both romantic and platonic relationships, and people communicate their sense of humor by telling jokes. However, there are sex differences in joking, so men tell jokes more often than women. Men’s benefits from joking correspond with such fundamental social motives, as mate seeking and mate retentio...

While people value a good sense of humor in their potential romantic partners, we know comparatively less about the function of humor in long-term relationships. Using the survey method, we measured the production, appreciation, and quality of humor along with humor styles and dyadic adjustment in long-term relationships among 149 heterosexual coup...

Background: Rapid development of technologies increases the possibility of technological enhancements of human beings, e.g., in their cognitive skills or physical fitness. Attitudes towards such enhancements may result in their social acceptance or rejection. Participants and procedure: One hundred and thirty-nine young Polish adults participated i...

COVID-19 vaccines are recognized as a way to stop the ongoing pandemic. However, for this method to be effective, it requires a high level of people’s willingness to be vaccinated. The aim of this study was to measure psychological aspects of attitudes towards vaccination against COVID-19 during the time when the vaccine was developed but not yet d...

This study validated Polish versions of the Coronavirus Stress Measure (CSM) and the COVID-19 Burnout Scale (COVID-19-BS) to measure stress and burnout associated with COVID-19. Participants were 431 Polish young adults (72.6% female; Mean age = 26.61 ± 12.63). Confirmatory factor analysis verified a one-factor solution for both the CSM and the COV...

Background: Weight stigma is a serious challenge because of its negative impact on human health and harmful psychological and behavioral consequences. The aim of the study was to explore and compare the relationships between self-reported body weight and weight-related stigmatization experiences and body image, mental self-image, self-esteem, and s...

There is a tension between scientific motivation for discoveries or broadening knowledge and compliance with ethical standards. What psychological factors are associated with recognizing scientific research as ethically unacceptable is of interest. The level of acceptance of the violation of ethical norms due to scientific reasons, empathy, systema...

Background: COVID-19 vaccines are being recognized as a way to stop the ongoing pandemic. However, for this method to be effective, it requires a high level of people’s willingness to be vaccinated. In this context, measuring the psychological aspects of attitudes towards vaccination against COVID-19 when the vaccine was developed but not yet distr...

BACKGROUND: The main aim of this study was to develop criteria for qualitative interpretation of the scores of the Views of Science Questionnaire (VoSQ), which is a tool for measuring the level of scientistic worldview. Another goal was to verify the psychometric properties of the tool in an adequately large and demographically diverse sample. PAR...

STRESZCZENIE Cel: Szczepionki na COVID-19 są uznawane za sposób na zatrzymanie trwającej pandemii. Jednak skuteczność tej metody wymaga wysokiego poziomu aprobaty społecznej. Celem niniejszego badania było zmierzenie psychologicznych aspektów postaw wobec szczepień przeciwko COVID-19 w czasie, gdy szczepionka została już opracowana, ale nie była je...

In social and economic sciences, materialism is considered to be an unambiguously cultural phenomenon. The authors of this paper present the possibility of looking at it in a different way, namely from the evolutionary point of view, which allows to ap-proach materialism in terms of its functionality in satisfying diverse needs. First, the fundamen...

Researchers have found that men's facial hair may have certain signaling functions connected with intrasexual competition and intersexual attractiveness. The interesting issue is whether men's and women's preferences for men's facial hair may be considered a reflection of their intuitive knowledge about these functions. The aim of the presented stu...

Trudno wyobrazić sobie temat bardziej uniwersalny niż zdrowie i bardziej aktualny niż współczesność. W książce zostały one połączone w perspektywie psychologicznej. Zwykle twierdzimy, że „zdrowie jest najważniejsze”. Czy do pomyślenia jest, że nie zawsze, nie dla wszystkich, nie w każdej sytuacji? Co decyduje o sposobie rozumienia i wartościowania...

Materialism is considered as an unambiguously cultural phenomenon in literature in the field of social and economic sciences. The authors of the paper present the possibility of looking at it also in a different way, namely from the evolutionary point of view, which makes it possible to approach materialism in terms of its functionality in satisfyi...

W artykule zaprezentowano poszczególne etapy budowy Kwestionariusza Opinii o Nauce, służącego do badania sposobów ustosunkowywania się do elementów systemu naukowego. Rezultaty wstępnej selekcji pozycji kwestionariuszowych, eksploracyjnej analizy czynnikowej oraz serii analiz konfirmacyjnych doprowadziły do skonstruowania charakteryzującego się sat...

The paper presents the individual stages of building the Views of Science Questionnaire used to study the different positions taken on elements of the scientific system. The results of a preliminary selection of the questionnaire items, of exploratory factor analysis and of a series of confirmatory analyses led to the construction of a tool charact...

In the popular works of charismatic scientists you can find messages which presentscientific code as the only appropriate way of speaking about reality. However,the history of science shows that strongly optimistic opinions about therole of the elements of the scientific system in the process of overcoming all theproblems of humanity are not a new...

POLISH VERSION:_____W artykule zaprezentowano wyniki badania związków pomiędzy spostrzeganą wiarygodnością reklam wykorzystujących regułę społecznego dowodu słuszności lub regułę autorytetu w kontekście refleksyjności poznawczej, maksymalizacji i scjentystycznego światopoglądu. Rezultaty zebrane w próbie 110 osób wykazały, że refleksyjność poznawcz...

Background The article refers to an 11-factor circumplex model of goal contents introduced by Grouzet et al., which suggested a consistent structure of goals allocated within two dimensions: extrinsic–intrinsic and self-transcendent–physical. A previous study showed a rather poor fit of this model in a Polish context. Therefore using data from the...

W artykule zaprezentowano wyniki badań łączących założenia podejścia ewolucyjnego oraz ujęcia wykorzystującego metodę torowania poznawczego. Celem przedstawionych procedur było określenie, czy torowanie idei pieniądza, ojczyzny oraz rodziny wiąże się ze zmianą funkcjonowania poznawczego, przejawiającą się w sposobie rozwiązywania klasycznego zadani...

The article presents an attempt to confirm the circumplex structure of goal contents, identified in 15 cultures around the world (Grouzet et al., 2005), in nine Polish samples. The procedure followed steps from the original study and included testing the assumed 11-factor goal structure and the two-dimensional circular organization of the goal cont...

Ustalenia naukowe wywierają coraz większy wpływ na życie współczesnych ludzi, jednak wraz z rosnącym znaczeniem systemu naukowego zwiększa się także ryzyko powstawania zniekształconych wyobrażeń na temat aktualnego stanu nauki oraz tego, co zostało przez nią jednoznacznie rozstrzygnięte. W związku z powyższym, badacze w przekazach kierowanych do sz...

Ujęcie ewolucyjne stanowi jedno ze współczesnych podejść psychologicznych starających się wyjaśnić ludzką aktywność artystyczną. W artykule zostały zaprezentowane wybrane funkcjonujące w jego ramach teorie, odnoszące się do poznawczych, emocjonalnych i społecznych uwarunkowań, stanowiących niezbędne podłoże doświadczeń estetycznych, uprawiania oraz...

The book raises the topic of the currently prevailing in society, increased interest and common admiration for scientific claims. Investigating in the subsequent chapters of the book the determinants underlying the said state of affairs, the author displays an interdisciplinary approach. Chapter One analyses various ways of presenting elements of s...

Within recent years the percentage of students in relation to the total population of young adults has been increasing in Poland. In search of the psychological consequences of this situation a study has been conducted on the relation between the level of activity of students and both the objective and subjective indicators of their effectiveness a...

Według badaczy współczesności obecne kierunki ludzkiej aktywności w znacznym stopniu wyznaczane są przez wartości materialistyczne. Choć znajdują one odzwierciedlenie w dominującej (pop)kulturze, odnaleźć można również przykłady przekazów wyraźnie im się przeciwstawiających. Należy do nich światopogląd związany z muzyką reggae, prezentowany w tekst...

W rozważaniach nad poczuciem dobrostanu psychicznego zwraca się uwagę nie tylko na autoteliczną wartość niniejszej zmiennej, ale również na jej właściwości instrumentalne. Artykuł, wpisując się w tradycje studiów nad ponadjednostkowymi wyznacznikami dobrostanu psychicznego, prezentuje wyniki przeprowadzonych w grupie 473 studentów III roku badań do...