Variety Is the Spice of Life: Diverse Social Networks Are Associated With Social Cohesion and Well-Being

Both homophily and heterophily are observed in humans. Homophily reinforces homogeneous social networks, and heterophily creates new experiences and collaborations. However, at the extremes, high levels of homophily can cultivate prejudice toward out-groups, whereas high levels of heterophily can weaken in-group support. Using data from 24,726 adults (M = 46 years; selected from 10,398 English neighborhoods) and the composition of their social networks based on age, ethnicity, income, and education, we tested the hypothesis that a middle ground between homophily and heterophily could be the most beneficial for individuals. We found that network homophily, mediated by perceived social cohesion, is associated with higher levels of subjective well-being but that there are diminishing returns, because at a certain point increasing network homophily is associated with lower social cohesion and, in turn, lower subjective well-being. Our results suggest that building diverse social networks provides benefits that cannot be attained by homogeneous networks.

Observing many researchers using the same data and hypothesis reveals a hidden universe of uncertainty

This study explores how researchers' analytical choices affect the reliability of scientific findings. Most discussions of reliability problems in science focus on systematic biases. We broaden the lens to emphasize the idiosyncrasy of conscious and unconscious decisions that researchers make during data analysis. We coordinated 161 researchers in 73 research teams and observed their research decisions as they used the same data to independently test the same prominent social science hypothesis: that greater immigration reduces support for social policies among the public. In this typical case of social science research, research teams reported both widely diverging numerical findings and substantive conclusions despite identical start conditions. Researchers' expertise, prior beliefs, and expectations barely predict the wide variation in research outcomes. More than 95% of the total variance in numerical results remains unexplained even after qualitative coding of all identifiable decisions in each team's workflow. This reveals a universe of uncertainty that remains hidden when considering a single study in isolation. The idiosyncratic nature of how researchers' results and conclusions varied is a previously underappreciated explanation for why many scientific hypotheses remain contested. These results call for greater epistemic humility and clarity in reporting scientific findings.

The Role of Short-Term and Longer Term Immigration Trends on Voting for Populist Radical Right Parties in Europe

The success of populist radical right parties (PRRPs) in Europe has, in part, been attributed to growing immigration, but previous findings have found an inconsistent relationship between immigration and voting for PRRPs. We address previous inconsistencies by suggesting a time-focused perspective on intergroup relations. We disentangle short-term from longer term immigration trends and argue that a recent increase in immigration should predict PRRP support. With time, however, citizens will adapt to these demographic changes and voting for PRRPs could decline. We drew on official immigration records and representative data from the European Social Survey, capturing the voting behavior of 75,874 individuals from 15 European countries between 2002 and 2014. We found that a recent increase in immigration predicted more PRRP voting, and this relationship was strengthened under conditions of higher economic strain and inequality. In contrast, sustained immigration in the longer term was not related with PRRP votes.

Internet use by middle-aged and older adults: Longitudinal relationships with functional ability, social support, and self-perceptions of aging

In an increasingly digital world, those who remain offline may face greater challenges across multiple contexts of everyday life. Besides being less likely to be internet users, older age groups go online less frequently and for fewer activities. Understanding which factors facilitate or prevent internet use in later life is therefore essential to minimize existing age-based digital inequalities. Based on the 2014 and 2017 waves of the German Ageing Survey, comprising 3,479 respondents aged 40 years and older, this study examined the longitudinal relationships of a wide range of often overlooked, yet potentially relevant factors related to functional ability, social support, and self-perceptions of aging with general internet use and seven specific online behaviors. As the only factors relating to general use and a considerable number of specific uses, cognitive functioning and competence-related self-perceptions of aging emerged as the most important correlates of internet use in middle and late adulthood. Better cognitive functioning preceded contacting friends, acquaintances, and relatives, searching for information, banking, and shopping more frequently 3 years later. In turn, competence self-perceptions of aging preceded contacting others, searching for new social contacts, seeking information, banking, engaging in online entertainment, and creating contents more frequently 3 years later. Reciprocal relationships were also found between each factor and general use, suggesting mutual influences. Additionally, physical functioning and received informational support preceded greater use for specific activities. These findings elucidate which factors to consider when developing effective strategies to promote general and specific internet use among middle-aged and older adults. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Does ethnic diversity affect well-being and allostatic load among people across neighbourhoods in England?

Modern societies are facing unprecedented changes in their ethnic composition. Increasing ethnic diversity poses critical new challenges as people interact with new cultures, norms, and values, or avoid such encounters. Heated academic and political debates focus on whether and how changes in ethnic composition affect societies and local communities. Yet, there is insufficient scientific evidence of how living in a more diverse society affects individuals' well-being and health. The aim of this study is to test the extent to which increasing neighbourhood ethnic diversity affects individuals' subjective health and well-being and objective stress levels as measured by allostatic load. We analyse a large panel data set containing over 47,000 English respondents living in 15,545 neighbourhoods in England from the British Household Panel Survey and the UK Household Longitudinal Study, from 2004 to 2011. We match respondents to neighbourhoods and merge contextual information about levels of neighbourhood ethnic diversity and deprivation from UK Censuses, whilst controlling for background characteristics. We distinguish between short- and long-term effects of ethnic diversity on individual subjective well-being and health as well as allostatic load using a set of multilevel mixed-effects models. We make cautious causal interpretations by estimating fixed-effects models and cross-lagged panel models. We assess the robustness of our findings by replicating our analysis using alternative composite measures of diversity and allostatic load. In the short-term, increasing ethnic diversity of local areas is associated with a dip in subjective well-being, but short-term changes are not prolonged or profound enough to affect chronic stress (allostatic load). The initial negative impact of ethnic diversity on subjective well-being and health dissipates with time. In the long-term, no effects of ethnic diversity on well-being and health or chronic stress (allostatic load) are detected. Understanding the dynamic nature of the effects of ethnic diversity on individuals has critical implications for social and public health policies - issues prominent in, for example, the UK (Brexit) and the US (election of President Donald Trump). Our analysis identifies and enables the promotion of beneficial effects, while targeting the pernicious components to turn diversity into a valuable asset in a globalising world.

Too Old for Computers? The Longitudinal Relationship Between Stereotype Threat and Computer Use by Older Adults

Besides having lower rates of technology adoption than the general population, older adults are commonly stereotyped as lacking technological ability. Stereotype threat, the fear of confirming negative stereotypes targeting their social group, may lead individuals to distance themselves from the stereotyped domain. This suggests that older adults may underuse computer technology due to stereotype threat. A sample of 86 community-dwelling older adults (M_age = 78.47, SD_age = 7.92) participated in a two-wave longitudinal study aiming to examine the relationship between stereotype threat and computer use in this age group. An autoregressive cross-lagged panel analysis was conducted using structural equation modeling. As expected, stereotype threat predicted lower levels of computer use a year and a half later. In turn, computer use was unrelated to the later experience of stereotype threat in this domain. These findings suggest that stereotype threat may undermine computer adoption in late adulthood, thus contributing to perpetuate the digital inequalities between younger and older generations.

As diversity increases, people paradoxically perceive social groups as more similar

With globalization and immigration, societal contexts differ in sheer variety of resident social groups. Social diversity challenges individuals to think in new ways about new kinds of people and where their groups all stand, relative to each other. However, psychological science does not yet specify how human minds represent social diversity, in homogeneous or heterogenous contexts. Mental maps of the array of society's groups should differ when individuals inhabit more and less diverse ecologies. Nonetheless, predictions disagree on how they should differ. Confirmation bias suggests more diversity means more stereotype dispersion: With increased exposure, perceivers' mental maps might differentiate more among groups, so their stereotypes would spread out (disperse). In contrast, individuation suggests more diversity means less stereotype dispersion, as perceivers experience within-group variety and between-group overlap. Worldwide, nationwide, individual, and longitudinal datasets (n = 12,011) revealed a diversity paradox: More diversity consistently meant less stereotype dispersion. Both contextual and perceived ethnic diversity correlate with decreased stereotype dispersion. Countries and US states with higher levels of ethnic diversity (e.g., South Africa and Hawaii, versus South Korea and Vermont), online individuals who perceive more ethnic diversity, and students who moved to more ethnically diverse colleges mentally represent ethnic groups as more similar to each other, on warmth and competence stereotypes. Homogeneity shows more-differentiated stereotypes; ironically, those with the least exposure have the most-distinct stereotypes. Diversity means less-differentiated stereotypes, as in the melting pot metaphor. Diversity and reduced dispersion also correlate positively with subjective wellbeing.

Corruption in Latin America

Latin America has experienced a series of recent corruption scandals, resulting in an unprecedented uncertainty in political leadership across the whole region. Within this context, we have conducted a survey study comprising nine countries in Latin America ( n = 1,250) examining the stereotype content of politicians. We tested a dual effects model in which the stereotypes of politicians were predicted to shape perceptions of justice directly and indirectly through the activation of affect. Our findings revealed that politicians tended to be stereotyped with negative morality traits and with a certain degree of negativity across other stereotype dimensions. Results supported a positive direct effect of morality on perceived justice and a positive indirect effect through the activation of affect. We discuss the implications of these findings for the current political context in Latin America and also for our understanding of perceptions about politicians and their relationship with leader and power legitimacy.

A Longitudinal Study of the Effects of Discrimination on the Acculturation Strategies of International Students

The current study investigated the impact of discrimination on the acculturation strategies of international students in the United Kingdom. In a longitudinal study that followed students ( N = 113) for 1 year, the authors drew on social identity theory to understand the processes by which discrimination affects their acculturation strategies. Specifically, the study examined an indirect effect by which perceived discrimination affects acculturation strategies through perceived permeability of group boundaries. Results showed that perceiving discrimination is associated with a perceived lack of permeability, which in turn results in avoiding the host society and simultaneously endorsing one’s own cultural background. Implications for international students and other cultural groups are discussed.

Congenital left-sided Bochdalek diaphragmatic hernia. Thoracoscopic repair--case report

The authors report the case of a 12-year-old girl who presented with a left-sided diaphragmatic hernia that was diagnosed after a pulmonary infection. CT scan confirmed a posterolateral diaphragmatic Bochdalek defect. The child underwent a thoracoscopic repair of the defect in 1997. The herniated contents included spleen, stomach, and intestine. The child was discharged from hospital the day after surgery. She has been followed up and is clinical and radiologically well.

Neurocysticercosis in a preschool-age child: case report

Neurocysticercosis is a frequent cause of epilepsy and other neurologic abnormalities in all age groups, however by virtue of its prolonged incubation period as well as young children's nutritional habits, it is rarely seen in preschool-age children. The objective of this study is to report the case of a 2 year-old child who presented with new-onset seizures. Her diagnostic features, including neuroradiologic findings, are described and compared with the literature. No matter how young he or she may be, every child who presents with new-onset seizures or other unexplained neurologic features and whose CT or MRI shows cystic lesions or contrast-enhancing rounded lesions should raise a suspicion of neurocysticercosis.

Notes on American medical history: a follow-up study of the New Haven morphine maintenance clinic of 1920

From 1918 to 1920, the police department of New Haven, Connecticut, operated a maintenance clinic for morphine addicts. The clinic registered 91 patrons by September 1920, when the facility was closed because of a change in federal narcotics-regulation policies. Death certificates recovered for 40 of the 91 registrants (44 per cent) show that the patrons mean age of death was 55.9 years. Although this age is 13 years younger than the mean age of death of the general population, it is comparable to the death rates for lower socioeconomic groups. The causes of death of the 40 patrons were rarely related to drugs; however, like nonaddicted persons in lower socioeconomic groups, the patrons faced higher risks of alcoholism, infectious diseases, suicide, and accidents. Thus, although many in the group appear to have freed themselves from drug addiction, they continued to face other hazards predisposing them to premature mortality.