Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages

Love is a phenomenon that occurs across the world and affects many aspects of human life, including the choice of, and process of bonding with, a romantic partner. Thus, developing a reliable and valid measure of love experiences is crucial. One of the most popular tools to quantify love is Sternberg's 45-item Triangular Love Scale (TLS-45), which measures three love components: intimacy, passion, and commitment. However, our literature review reveals that most studies (64%) use a broad variety of shortened versions of the TLS-45. Here, aiming to achieve scientific consensus and improve the reliability, comparability, and generalizability of results across studies, we developed a short version of the scale-the TLS-15-comprised of 15 items with 5-point, rather than 9-point, response scales. In Study 1 (N = 7,332), we re-analyzed secondary data from a large-scale multinational study that validated the original TLS-45 to establish whether the scale could be truncated. In Study 2 (N = 307), we provided evidence for the three-factor structure of the TLS-15 and its reliability. Study 3 (N = 413) confirmed convergent validity and test-retest stability of the TLS-15. Study 4 (N = 60,311) presented a large-scale validation across 37 linguistic versions of the TLS-15 on a cross-cultural sample spanning every continent of the globe. The overall results provide support for the reliability, validity, and cross-cultural invariance of the TLS-15, which can be used as a measure of love components-either separately or jointly as a three-factor measure.

Exploring Attitudes Toward "Sugar Relationships" Across 87 Countries: A Global Perspective on Exchanges of Resources for Sex and Companionship

The current study investigates attitudes toward one form of sex for resources: the so-called sugar relationships, which often involve exchanges of resources for sex and/or companionship. The present study examined associations among attitudes toward sugar relationships and relevant variables (e.g., sex, sociosexuality, gender inequality, parasitic exposure) in 69,924 participants across 87 countries. Two self-report measures of Acceptance of Sugar Relationships (ASR) developed for younger companion providers (ASR-YWMS) and older resource providers (ASR-OMWS) were translated into 37 languages. We tested cross-sex and cross-linguistic construct equivalence, cross-cultural invariance in sex differences, and the importance of the hypothetical predictors of ASR. Both measures showed adequate psychometric properties in all languages (except the Persian version of ASR-YWMS). Results partially supported our hypotheses and were consistent with previous theoretical considerations and empirical evidence on human mating. For example, at the individual level, sociosexual orientation, traditional gender roles, and pathogen prevalence were significant predictors of both ASR-YWMS and ASR-OMWS. At the country level, gender inequality and parasite stress positively predicted the ASR-YWMS. However, being a woman negatively predicted the ASR-OMWS, but positively predicted the ASR-YWMS. At country-level, ingroup favoritism and parasite stress positively predicted the ASR-OMWS. Furthermore, significant cross-subregional differences were found in the openness to sugar relationships (both ASR-YWMS and ASR-OMWS scores) across subregions. Finally, significant differences were found between ASR-YWMS and ASR-OMWS when compared in each subregion. The ASR-YWMS was significantly higher than the ASR-OMWS in all subregions, except for Northern Africa and Western Asia.

The role of basic psychological needs in the relationships between identity orientations and adolescent mental health: A protocol for a longitudinal study

Research into the role of identity orientations (the relative importance an individual places on different personal and social attributes and characteristics when defining her or his identity) in adolescent mental health is extremely limited. Furthermore, the potential mechanisms that might explain the associations between identity orientations and adolescent mental health are poorly understood. This study protocol describes a one-year longitudinal study across three time points to be initiated with the purpose of investigating the mediating role of basic psychological needs satisfaction and frustration in the relationship between identity orientations and various mental health indicators in adolescence. We aim to recruit a large sample of Serbian adolescents (N = 2,000 at Time 1), using a two-stage stratified random sampling. The data will be analyzed using the random intercept cross-lagged panel model (RI-CLPM), and the results will be contrasted with the traditional CLPM. The goal of this study is to make a theoretical contribution to research in the fields of identity, self-determination theory, and adolescent mental health, as well as to provide insights towards the development of evidence-based recommendations for creating prevention and promotion programs aimed at improving the well-being of adolescents.

Nature, implications and determinants of academic motivation profiles among upper elementary and secondary students

The present study sought to contribute to self-determination theory by examining the nature of adolescents' academic motivation profiles defined while considering its global and specific nature. The construct validity of these profiles was examined by considering their replicability across samples of upper elementary (n = 781) and secondary (n = 467) school students, as well as their associations with predictors (perceived parental need nurturing behaviors) and outcomes (academic achievement and expectations of success). Latent profile analyses revealed four profiles (Non-Motivated, Identified, Amotivated, and Strongly Motivated) characterized by differing levels of global and specific levels of academic motivation. These profiles were fully replicated across educational levels. Most profiles differed from one another in terms of outcomes, although differences in terms of outcomes associations were observed across educational levels. Finally, profile membership was predicted by global levels of need nurturing and by some of the specific need nurturing behaviors in a way that replicated across educational levels. Our results suggest that the specific qualities of academic motivation and the global levels of self-determination are equally important in the identification of academic motivation profiles.

Supplementary Information

The online version contains supplementary material available at 10.1007/s12144-023-04687-x.

A multi-country test of brief reappraisal interventions on emotions during the COVID-19 pandemic

The COVID-19 pandemic has increased negative emotions and decreased positive emotions globally. Left unchecked, these emotional changes might have a wide array of adverse impacts. To reduce negative emotions and increase positive emotions, we tested the effectiveness of reappraisal, an emotion-regulation strategy that modifies how one thinks about a situation. Participants from 87 countries and regions (n = 21,644) were randomly assigned to one of two brief reappraisal interventions (reconstrual or repurposing) or one of two control conditions (active or passive). Results revealed that both reappraisal interventions (vesus both control conditions) consistently reduced negative emotions and increased positive emotions across different measures. Reconstrual and repurposing interventions had similar effects. Importantly, planned exploratory analyses indicated that reappraisal interventions did not reduce intentions to practice preventive health behaviours. The findings demonstrate the viability of creating scalable, low-cost interventions for use around the world. PROTOCOL REGISTRATION: The stage 1 protocol for this Registered Report was accepted in principle on 12 May 2020. The protocol, as accepted by the journal, can be found at https://doi.org/10.6084/m9.figshare.c.4878591.v1.

The Role of Basic Psychological Needs in Well-Being During the COVID-19 Outbreak: A Self-Determination Theory Perspective

Due to the coronavirus outbreak, people around the world are facing various challenges in maintaining their well-being, which can be compromised due to risk of illness and harsh measures of social distancing. As proposed by the Self-Determination Theory, basic psychological needs are essential nutrients of well-being. The aim of this study was to examine the role of basic psychological needs in well-being during the pandemic. A sequential mediation model was examined, that links positive and negative affectivity to well-being (satisfaction with life and general distress) through satisfaction and frustration of the basic psychological needs (for autonomy, competence, and relatedness). The study involved 965 participants (Mage = 29; 57% females) from Serbia. The Basic Psychological Needs Satisfaction and Frustration scale, Satisfaction with Life Scale, Depression Anxiety Stress Scale 21, and The Serbian Inventory of Affect based on the Panas-X were used. All the tested models were statistically significant. Controlling for age, gender, having children, health, employment, and marital status, direct effects in all models were highly significant, explaining up to 59% of criteria variance. The proportion of the explained variance was even higher when accounting for indirect effects. Sequential mediation models revealed that the indirect relationships between positive and negative affectivity and satisfaction with life and general distress were serially mediated by autonomy satisfaction, competence frustration, relatedness satisfaction, and relatedness frustration. This study raised an important question on how the disposition to experience more positive or negative emotions affects the change in subjective well-being. These results, coherent with the Self-Determination Theory postulates, add to the understanding of human functioning in the times of extraordinary circumstances during a pandemic, by suggesting that satisfaction and frustration of basic psychological needs might have a key role in obtaining optimal well-being.

Personality Traits and Self-Esteem in Combat and Team Sports

The aim of this research was to examine whether psychological variables which make up basic dimensions of personality and self-esteem distinguish competitors in combat sports from competitors in team sports. The research included 149 respondents, aged 19 to 27 years. The Self-Esteem Scale questionnaire was used to measure self-esteem. The BFI inventory was used to measure personality traits according to the Big Five model: Extraversion, Neuroticism, Conscientiousness, Agreeableness, and Openness to Experience. The basic research question is – does the set of psychological variables which make up basic dimensions of personality and self-esteem statistically significantly distinguish competitors in combat sports from the competitors in team sports? Both mean differences and simple discriminant function analyses for competitors in combat/team sports revealed that self-esteem, neuroticism, and conscientiousness were the most important factors distinguishing the two groups. Practical implications, limitations, and future research directions were discussed.