Psychology has become less WEIRD in recent years, marking progress toward becoming a truly global psychology. However, this increase in cultural diversity is not matched by greater attention to cultural biases in research. A significant challenge in culture-comparative research in psychology is that any comparisons are open to possible item bias and non-invariance. Unfortunately, many psychologists are not aware of problems and their implications, and do not know how to best test for invariance in their data. We provide a general introduction to invariance testing and a tutorial of three major classes of techniques that can be easily implemented in the free software and statistical language R. Specifically, we describe (1) confirmatory and multi-group confirmatory factor analysis, with extension to exploratory structural equation modeling, and multi-group alignment; (2) iterative hybrid logistic regression as well as (3) exploratory factor analysis and principal component analysis with Procrustes rotation. We pay specific attention to effect size measures of item biases and differential item function. Code in R is provided in the main text and online (see https://osf.io/agr5e/ ), and more extended code and a general introduction to R are available in the Supplementary Materials.

We conducted a rapid review and quantitative summary of meta-analyses that have examined interventions which can be used by individuals during quarantine and social distancing to manage anxiety, depression, stress, and subjective well-being. A literature search yielded 34 meta-analyses (total number of studies k = 1,390, n = 145,744) that were summarized. Overall, self-guided interventions showed small to medium effects in comparison to control groups. In particular, self-guided therapeutic approaches (including cognitive-behavioral, mindfulness, and acceptance-based interventions), selected positive psychology interventions, and multi-component and activity-based interventions (music, physical exercise) showed promising evidence for effectiveness. Overall, self-guided interventions on average did not show the same degree of effectiveness as traditional guided individual or group therapies. There was no consistent evidence of dose effects, baseline differences, and differential effectiveness of eHealth interventions. More research on the effectiveness of interventions in diverse cultural settings is needed.

What motives do people prioritize in their social lives? Historically, social psychologists, especially those adopting an evolutionary perspective, have devoted a great deal of research attention to sexual attraction and romantic-partner choice (mate seeking). Research on long-term familial bonds (mate retention and kin care) has been less thoroughly connected to relevant comparative and evolutionary work on other species, and in the case of kin care, these bonds have been less well researched. Examining varied sources of data from 27 societies around the world, we found that people generally view familial motives as primary in importance and mate-seeking motives as relatively low in importance. Compared with other groups, college students, single people, and men place relatively higher emphasis on mate seeking, but even those samples rated kin-care motives as more important. Furthermore, motives linked to long-term familial bonds are positively associated with psychological well-being, but mate-seeking motives are associated with anxiety and depression. We address theoretical and empirical reasons why there has been extensive research on mate seeking and why people prioritize goals related to long-term familial bonds over mating goals. Reallocating relatively greater research effort toward long-term familial relationships would likely yield many interesting new findings relevant to everyday people’s highest social priorities.

We examined the effectiveness of attitudes, subjective norms, and perceived behavioral control (PBC) of the theory of planned behavior on COVID-19 relevant behavioral intentions and behaviors. We conducted a meta-analysis of 335 effect sizes from 83 samples across 31 countries ( N = 68,592). We found strongest effects for PBC, but contrary to previous research also moderately strong effects of subjective norms. Focusing on systematic context effects: (a) norm–behavior associations at individual level were strengthened if population norms were stronger; (b) collectivism strengthened norm effects in line with cultural theories, but also attitude and PBC associations, suggesting that COVID-relevant behaviors show collective action properties; (c) in line with cultural theory, tightness–looseness strengthened normative effects on behaviors; and (d) contrary to post-modernization theory, national wealth weakened attitude and PBC associations. These analyses provide new theoretical and practical insights into behavioral dynamics during an acute public health crisis.

We conducted a rapid review and quantitative summary of meta-analyses that have examined interventions which can be used by individuals during quarantine and social distancing to manage anxiety, depression, stress and subjective well-being. A literature search yielded 34 meta-analyses (total number of studies k = 1,390, n = 145,744) that were summarized. Overall, self-guided interventions showed small to medium effects in comparison to control groups demonstrating their effectiveness. In particular, therapeutic approaches (including cognitive-behavioral, mindfulness, and acceptance-based interventions), selected positive psychology interventions, and multi-component and activity based interventions (music, physical exercise) showed promising evidence for effectiveness. Many of these interventions are available in online or smartphone app form. At the same time, self-guided interventions on average did not show the same degree of effectiveness as traditional guided individual or group therapies. The review points to activities and practices that can be adapted by individuals as a first step to manage their mental health during social distancing and quarantines. Further research is clearly needed on activities helping individuals to interact and live in constrained living conditions (e.g, improving social interactions during quarantine) and the relative effectiveness of self-guided interventions across cultural boundaries.