Studies with the strongest research designs indicate that psychotherapy may be considerably less effective than we tend to believe; in fact, different psychotherapies may be equally ineffective

Insight Into Insight in Psychotherapy. Per Høglend. American Journal of Psychiatry, https://doi.org/10.1176/appi.ajp.2018.18050634

There have been more than 5,000 randomized controlled trials of psychotherapy. Most meta-analyses conclude that psychotherapy is effective for a range of disorders, and different modalities of therapy are equally effective. However, studies with the strongest research designs indicate that psychotherapy may be considerably less effective than we tend to believe (1). In fact, different psychotherapies may be equally ineffective. Too many patients fail to respond or continue to experience residual symptoms after treatment termination. All treatments for mental disorders have a wide margin for improvement.

Mental health professionals still believe that psychotherapy can be improved by theoretical discussion, logic, and expert opinion (2). This may be one of the reasons for the existence of several hundred “brand name” psychotherapies. However, in order to improve clinical theories, treatment interventions, and training, we need to identify how psychotherapy works—the mechanisms of change underlying the treatment effects (3). It is only with the specification of mediators of change, whether psychological (3) or biological (4), that the field will move forward. Many mechanisms may have an impact in the complex process of psychotherapy, but insight is regarded as one of the most important mechanisms of change, not only in dynamic psychotherapy (5) but also, increasingly, in cognitive behavioral therapy (6) and experiential psychotherapy (7).

In this regard, the study reported in this issue of the Journal by Jennissen and colleagues (8) is timely. This is the first meta-analysis of studies with data on the insight-outcome correlation. The meta-analysis is generally well done, with all of the elements that one would want to see—checks for heterogeneity, study quality, weighting, risk of publication bias. The authors screened more than 12,000 abstracts, assessed 261 full-text papers, and ended up with 22 studies (with 23 effect sizes). Their definition of insight is broad, but it is mainstream and reasonably accurate. They define it as “patients’ understanding of associations between past and present experiences, typical relationship patterns, and the relation between interpersonal challenges, emotional experience, and psychological symptoms.” The eligibility criteria used are sensible. [...]

[...]

Jennissen et al. report a consistent pattern of associations between insight and outcome across disorders and therapy types. There was a significant moderate relationship (r=0.31) between insight and treatment outcome. The study was not powered to detect moderators of the insight-outcomes associations. Overall, the findings constitute preliminary support for the importance of insight in different forms of psychotherapy.

Jennissen and colleagues’ choice to include many different diagnoses and different treatments in their meta-analysis may reflect current developments in our field. Given the shared brain circuitry, genes found across disorders, medications used across disorders, and the reality of considerable comorbidity, there is growing recognition that only a few domains of dysfunction may extend across the many DSM diagnostic categories. Caspi et al. (9) have argued that psychopathology could be explained with one general psychopathology dimension. The Research Domain Criteria initiative of the National Institute of Mental Health focuses on only a few domains of dysfunction, social processes being one of them. Transdiagnostic approaches and unified trans-theoretical treatment protocols may improve future research.

Jennissen and colleagues’ meta-analysis estimated a moderate association between insight and psychotherapy outcome across diagnostic categories and different schools of psychotherapy. Its magnitude is comparable to effect sizes of established treatment factors, such as therapeutic alliance. A large number of studies have documented a moderate but consistent relationship between therapeutic alliance and outcome, across different treatments and diagnoses (10). Brain changes, too, mainly in the prefrontal cortex, cingulate gyrus, and amygdala, are associated with symptom improvement across different diagnoses and treatments (11). However, an association with outcome is necessary but not sufficient. Just like insight and alliance, brain changes may be a consequence of symptom change or a proxy for some other therapeutic change processes. Further longitudinal research with study designs that include most or all steps in mediation research is necessary to establish insight, or alliance, or brain changes as mechanisms for treatment outcome. In our own research into the effect of insight on the outcome of psychotherapy, my colleagues and I found that use of a specific technique in dynamic psychotherapy (transference work) increased gain of insight during therapy substantially, with a subsequent improvement in outcome (12).

[full text and references in link above]

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8  Jennissen S, Huber J, Ehrenthal JC, et al.: Association between insight and outcome of psychotherapy: systematic review and meta-analysis. Am J Psychiatry 2018;175:961–969

Domesticated Foxes Developing Laughter To Please Us

Domesticated Foxes Laugh with You (and Without You). Lee Alan Dugatkin. Psychology Today, Oct 2018,  https://www.psychologytoday.com/intl/blog/the-prince-evolution/201810/domesticated-foxes-laugh-you-and-without-you

Excerpts:

[...]

This part of the story begins in the 1980s when Lyudmila heard some of the domesticated foxes vocalizing in an odd new way, making a high-pitched “haaaaaw, haaaaaw, haw, haw, haw” sound when people approached them. Lyudmila thought it sounded like they were laughing and called it the “ha ha” vocalization. But neither Lyudmila nor the other researchers in the fox study had knowledge of how to study vocalizations, so not much came of the new sounds. Then, in 2005, Lyudmila got a phone call from Svetlana Gogoleva.

[...]

[...] What she found was that the “ha ha” sounds mimicked the sound of human laughter very closely. Closer than any other nonhuman vocalization. When she looked at a spectrogram that allowed her to visualize the domesticated fox “ha ha” sound, and a spectrogram of human laughter, she was hard pressed to tell the difference. The similarity was astonishing. Almost eerie. Of course, the domesticated foxes make their “ha ha” sound regardless of what we might consider funny. But that doesn’t change the fact that the domestication experiment has now produced foxes that not only act and look like a lapdog, but will give you a “ha ha” when you need a laugh, as well as when you do not.

Gogoleva and Lyudmila hypothesize that the tame foxes make the “ha ha” sound to attract human attention and prolong interaction with people. Somehow, they propose, the tame foxes have become adept at pleasing us by the sound of our own laughter. How, they don’t know, but a more pleasant way for one species to bond with another is hard to imagine.



Check also Smiles as Multipurpose Social Signals. Jared Martin et al. Trends in Cognitive Sciences, https://www.bipartisanalliance.com/2017/09/origin-of-smile-in-animals-could-be.html and references therein.

Emotional toll that psychotherapy may impose on mental health professionals: A protective role of quality of life was not observed for clinical supervision or personal therapy

Laverdière, O., Kealy, D., Ogrodniczuk, J. S., Chamberland, S., & Descôteaux, J. (2018). Psychotherapists’ professional quality of life. Traumatology, http://dx.doi.org/10.1037/trm0000177

Abstract: Psychotherapists’ daily activities entail working closely with individuals presenting with psychological distress and suffering from various mental disorders. This work relies upon relational and emotional capacities that are drawn upon during therapy sessions. Increasingly, researchers and clinicians have directed their attention toward examining the emotional toll that psychotherapy may impose on mental health professionals and the impact of such work on their professional quality of life. However, to date, psychotherapists in general practice have not been the focus of inquiry, which is the objective of the current study. To this end, 240 psychotherapists were surveyed, completing questionnaires relating to their working conditions, professional quality of life, and dispositional empathy. Results indicated significant negative associations between dimensions of professional quality of life and various work characteristics, such as workload, conducting only long-term psychotherapies or only with individuals, working in institutional settings, and working with trauma victims. A protective role was not observed for clinical supervision or personal therapy, but dispositional empathy was positively associated to dimensions of professional quality of life. Findings are discussed in relation to professional activities and self-care practices.

We Slow as We Age, but May Not Need to Slow Too Much

We Slow as We Age, but May Not Need to Slow Too Much. Gretchen Reynolds. The New York Times, Oct. 3, 2018. https://www.nytimes.com/2018/10/03/well/move/running-age-declines-slower.html
Although declines in running and other activities are unavoidable, they may be less steep than many of us fear.

Most of us who are older competitive runners are not able to race at anywhere near the same speed as we did when we were 30.

But we can perhaps aim to slow down at the same pace as Bernard Lagat, Ed Whitlock and other greats of masters running, according to a timely new analysis by two professors from Yale University.

The new analysis, which refines famous past research by one of the scientists, finds that, although declines in running performance with age are ineluctable, they may be less steep than many of us fear.

And, perhaps most important, the new research updates a popular formula and calculator that runners past the age of 40 can use to determine how fast we can expect to slow down and provides us with reasonable, age-appropriate finishing-time targets for ourselves.

Scientists do not know precisely why, from a physiological standpoint, we are less able to maintain our old, swifter pace as we reach middle age.

There is evidence from past studies that even in lifelong athletes, hearts become a bit less efficient over time at pumping blood and delivering oxygen and muscles a bit less adept at creating sustained power.

Changes deep within our cells, particularly in the energy-producing mitochondria, are thought to contribute to these age-related performance declines, as are simpler explanations such as creeping weight gain and a drop-off in hard training.

But the upshot is that, after a certain point, we cannot keep up with the kids or with our own previous bests.

Professor Ray Fair, an economist at Yale who mainly analyzes and predicts election outcomes, is familiar with this tribulation, since, now in his mid-70s, he is also an experienced masters marathon runner whose times have been slowing year by year.

About a decade ago, he began to wonder whether his rate of performance decline was typical and, being a predictive statistical modeler, decided to find out.

He turned first to information about world records for runners by age group. These times represent what is possible by the best runners in the world as they age.

And cumulatively, he found, the records proved that champion runners slow like the rest of us.

But there was a pattern to the slowing, Dr. Fair realized. As he reported in a 2007 study, the masters world record times rose in a linear fashion, with some hiccups, until about age 70, when they begin to soar at a much higher rate.

Using statistical modeling based on this pattern, Dr. Fair developed a formula that could predict how fast other, less-exceptional runners might expect to run as they grew older. He incorporated this formula into an influential calculator that he made available free on his website. (The calculator also predicts age-related performance declines in swimming and chess, using the same statistical techniques.)

The calculator soon became popular with runners, for whom it provided age-adjusted viable goal times, allowing them to swap despondency about their current plodding for gratification if they had managed to remain at or near their “regression line,” as Dr. Fair termed the age-adjusted predicted finishes.

But recently, Dr. Fair began to question whether his statistical model provided the best estimates of people’s likely race times and, for the new analysis, which was published in print this month in The Review of Economics and Statistics, he approached a Yale colleague, Edward Kaplan.

Dr. Kaplan is an expert in a complex type of statistical analysis known as extreme value theory, which focuses on exceptional deviations from the norm.

By definition, world records are exceptional deviations from the norm.

Together, Dr. Fair and Dr. Kaplan reanalyzed data about world masters running records through 2016 for the 5K, 10K, half marathon and marathon events, up to age 95.

They used only men’s records, since the number of older female participants has been small, Dr. Fair says, making current women’s records statistically suspect.

They then ran the numbers, using several different models, and found that, over all, age-adjusted finishing times are slightly slower now than in the 2007 version, rising about 1 percent a year.

But runners seem to be maintaining that rate of decline longer, until they are about age 80, when slowness drastically intensifies.

But even for 90-year-olds, the decline is limited, Dr. Fair points out.

Nonagenarians can expect to be “about twice as slow as they were in their prime,” he says, “which I think is encouraging.”

Interestingly, the new study’s extreme-value analysis also suggests that older runners have not yet become as fast as they could be.

The complicated calculations indicate that current world records for older runners theoretically could drop by as much as 8 percent in the future, Dr. Kaplan says, providing all of us new benchmarks for our own aging performance.

Dr. Fair has now introduced an updated version of his calculator, incorporating the new models.

To use it, visit his endearingly austere website at fairmodel.econ.yale.edu/aging and click on the link entitled “All other running (2018 updated age factors).”

There, enter your best time for whichever event interests you and the age at which you set that time. If you were younger than 40, use age 40 anyway, since the calculator assumes you will not have slowed much before reaching that age, Dr. Fair says.

You then will see your predicted times for your chosen event at every age through 95.

These figures presume that you have continued to train and maintain high fitness over the years, which many of us have not.

They also assume that recreational runners age and slow at the same rate as world-class runners, which has not been proven experimentally.

But even with these limitations, Dr. Fair says, the predictions give us something to shoot for.

“Aim for your regression line,” he says.

A version of this article appears in print on Oct. 9, 2018, on Page D4 of the New York edition with the headline: Slowing as We Grow Older

Sexual Arousal Patterns of Identical Twins with Discordant Sexual Orientations

Sexual Arousal Patterns of Identical Twins with Discordant Sexual Orientations. Tuesday M. Watts, Luke Holmes, Jamie Raines, Sheina Orbell & Gerulf Rieger. Scientific Reports, volume 8, Article number: 14970 (2018). https://www.nature.com/articles/s41598-018-33188-2

Abstract: Genetically identical twins can differ in their self-reported sexual orientations. However, whether the twins’ subjective reports reflect valid differences in their sexual orientations is unknown. Measures of sexual orientation, which are free of the limitations of self-report, include genital arousal and pupil dilation while viewing sexual stimuli depicting men or women. We examined these responses in 6 male twin pairs and 9 female twin pairs who reported discordant sexual orientations. Across measures, heterosexual male twins responded more strongly to women than to men. Their homosexual co-twins showed an opposite pattern. Heterosexual female twins responded equally to both sexes, whereas their homosexual co-twins responded somewhat more to women than men. These differences within pairs were similar to differences between unrelated heterosexual and homosexual males and females. Our study provides physiological evidence confirming twins’ discordant sexual orientations, thereby supporting the importance of the non-shared environment for the development of sexual orientation and sexual arousal.

Research from diverse subdisciplines of psychology sheds light on Schadenfreude; novel tripartite taxonomy of Schadenfreude: Aggression, rivalry, and justice; the process of dehumanization may lie at the core of Schadenfreude

Schadenfreude deconstructed and reconstructed: A tripartite motivational model. Shensheng Wang, Scott O. Lilienfeld, Philippe Rochat. New Ideas in Psychology, Volume 52, January 2019, Pages 1-11. https://doi.org/10.1016/j.newideapsych.2018.09.002

Highlights
•    Research from diverse subdisciplines of psychology sheds light on Schadenfreude.
•    We propose a novel tripartite taxonomy of Schadenfreude: Aggression, rivalry, and justice.
•    The process of dehumanization may lie at the core of Schadenfreude.

Abstract: Schadenfreude is the distinctive pleasure people derive from others' misfortune. Research over the past three decades points to the multifaceted nature of Schadenfreude rooted in humans’ concerns for social justice, self-evaluation, and social identity. Less is known, however, regarding how the differing facets of Schadenfreude are interrelated and take shape in response to these concerns. To address these questions, we review extant theories in social psychology and draw upon evidence from developmental, personality, and clinical research literature to propose a novel, tripartite, taxonomy of Schadenfreude embedded in a motivational model. Our model posits that Schadenfreude comprises three separable but interrelated subforms (aggression, rivalry, and justice), which display different developmental trajectories and personality correlates. This model further posits that dehumanization plays a central role in both eliciting Schadenfreude and integrating its various facets. In closing, we point to fruitful directions for future research motivated by this novel account of Schadenfreude.

Preference for realistic art predicts support for Brexit

Preference for realistic art predicts support for Brexit. Noah Carl, Lindsay Richards, Anthony Heath. The British Journal of Sociology, https://doi.org/10.1111/1468-4446.12489

Abstract: Following the UK’s EU referendum in June 2016, there has been considerable interest from scholars in understanding the characteristics that differentiate Leave supporters from Remain supporters. Since Leave supporters score higher on conscientiousness but lower on neuroticism and openness, and given their general proclivity toward conservatism, we hypothesized that preference for realistic art would predict support for Brexit. Data on a large nationally representative sample of the British population were obtained, and preference for realistic art was measured using a four‐item binary choice test. Controlling for a range of personal characteristics, we found that respondents who preferred all four realistic paintings were 15–20 percentage points more likely to support Leave than those who preferred zero or one realistic paintings. This effect was comparable to the difference in support between those with a degree and those with no education, and was robust to controlling for the respondent’s party identity.

Face proportions: Facial attractiveness increases with the enlargement of the uncovered eye surface as well as the reduction in nose and lip size

Impact of face proportions on face attractiveness. Mateusz Przylipiak et al. J Cosmet Dermatol. 2018;1–6. https://onlinelibrary.wiley.com/doi/pdf/10.1111/jocd.12783
Summary

Background: Proportions of face components appear to play a role in facial attractiveness.

Aims: The aim of the study was to establish the best proportions of face components in relation to whole face shape for facial attractiveness.

Methods: Only one face component (eye, nose, or lips) of a model in a series of photographs was altered using a computer program. Alterations consisted of size reduction or augmentation by 5% or 10%. Each photograph depicted a particular face component altered to either 90%, 95%, 100%, 105%, or 110% of its original size. Collages of photographs were shown to 167 individuals (male and female) for a fixed period of 7 seconds. Their task was to indicate the most attractive photograph
of a model in a presented collage.

Results: In total, 48.1% of individuals preferred enhanced eyes both in males and females. We found that the preferred mean eye size in women was statistically significantly higher than that in men. In total, 64.8% of respondents preferred reduced nose proportions in women (27.5% found a reduction to 90% of the original size more attractive while 37.3% preferred a reduction to 95%). It was demonstrated that the preferred mean nose size was statistically significantly lower in females in comparison with males. Respondents expressed a greater preference for nose reduction in women in comparison with men. 38.4% of respondents (in regard to both male and female mouth) preferred reduced mouth. 40.7% of respondents preferred reduced mouth in the female model.

Conclusions: Our work delivers statistically significant evidence that facial attractiveness increases together with the enlargement of the uncovered eye surface as well as the reduction in nose and lip size. Data were obtained using modern collective intelligence methods of validation.

KEYWORDS: attractiveness, eyes, face, mouth, nose, proportions

Individuals who indicated poor mating performance experienced more negative emotions (sadness, loneliness), fewer positive emotions (happiness, excitement), & were less satisfied with their lives

The emotional cost of poor mating performance. Menelaos Apostolou, Marios Shialos, Polyxeni Georgiadou. Personality and Individual Differences, Volume 138, 1 February 2019, Pages 188-192. https://doi.org/10.1016/j.paid.2018.10.003

Highlights
•    People who experienced poor mating performance experienced more negative emotions.
•    People who experienced good mating performance experienced more positive emotions.
•    Mating performance had a moderate to strong effect on emotions and wellbeing.
•    About one in two participants faced difficulties in intimate relationships.

Abstract: Recent studies indicated that a considerable proportion of adult individuals experience poor mating performance: They face considerable difficulties in attracting and retaining mates. Using an evolutionary theoretical framework, we hypothesized that poor mating performance would be associated with more negative and fewer positive emotions as well as low life satisfaction. Evidence from an online sample of 735 participants provided strong support for this hypothesis. In particular, we found that individuals who indicated poor mating performance, experienced more negative emotions such as sadness and loneliness, and fewer positive emotions such as happiness and excitement, and they were less satisfied with their lives. On the other hand, those who indicated a good performance in mating, experienced more positive emotions and fewer negative emotions, and they were more satisfied with their lives. As indicated by the effect sizes, mating performance had a moderate to strong effect on positive and negative emotions and wellbeing. Also, consistent with the results of previous research, we found that about one in two participants faced difficulties in either starting or keeping an intimate relationship.

Evolution of property and possession: Some non-human primates show respect for property

Rethinking the evolution of property and possession: A review and methodological proposition. Lucy Tibble, Susana Carvalho. Evolutionary Anthropology: Issues, News, and Reviews, https://doi.org/10.1002/evan.21748

Abstract: Property is a key feature of modern human society; however, identifying the origin of this multifaceted behavior poses a formidable challenge. Here, we explore the methodologies for researching the origin of property. We discuss how an interdisciplinary approach can shed light on how our human ancestors shifted behaviorally from possessing an object to having exclusive property control over it. Possession occurs when social group members only respect an individual's claim to have exclusive access to an object when the individual has physical control over the object. Property occurs when an individual can claim exclusive access to an object, without challenge, regardless of whether the object is in their physical control or not. Researchers across different disciplines have asked what, if anything, distinguishes human property behavior from the behavior of other animals? Further, when and how did this behavior evolve in our lineage? Due to the considerable methodological challenges posed by researching this topic, few studies have been able to directly address these questions. In this review, we explore the challenges involved in defining property and possession and suggest a two‐step approach to interdisciplinary definitions. Next, we evaluate four core approaches to the study of property behavior: evolutionary game theory, ethology, comparative cognition, and developmental psychology. Finally, we propose an empirical study, using an ethological approach to test the presence of property and possessive behavior in a natural setting, using our closest living relative, the chimpanzee (Pan troglodytes). Overall, we argue that this field of research is at a turning point, where the novel integration of various methods may provide an explanation to the origin of property.

Already known, but not discussed: Wind power reduces emissions while causing climatic impacts such as warmer temperatures, effect strongest at night when temperatures increase with height; wind's warming can exceed avoided warming from reduced emissions for a century

Climatic Impacts of Wind Power. Lee M. Miller, David W. Keith. Joule, October 04, 2018, DOI:https://doi.org/10.1016/j.joule.2018.09.009

Highlights
    •    Wind power reduces emissions while causing climatic impacts such as warmer temperatures
    •    Warming effect strongest at night when temperatures increase with height
    •    Nighttime warming effect observed at 28 operational US wind farms
    •    Wind's warming can exceed avoided warming from reduced emissions for a century

Summary: We find that generating today's US electricity demand (0.5 TW e) with wind power would warm Continental US surface temperatures by 0.24°C. Warming arises, in part, from turbines redistributing heat by mixing the boundary layer. Modeled diurnal and seasonal temperature differences are roughly consistent with recent observations of warming at wind farms, reflecting a coherent mechanistic understanding for how wind turbines alter climate. The warming effect is: small compared with projections of 21st century warming, approximately equivalent to the reduced warming achieved by decarbonizing global electricity generation, and large compared with the reduced warming achieved by decarbonizing US electricity with wind. For the same generation rate, the climatic impacts from solar photovoltaic systems are about ten times smaller than wind systems. Wind's overall environmental impacts are surely less than fossil energy. Yet, as the energy system is decarbonized, decisions between wind and solar should be informed by estimates of their climate impacts.

Child Care Tax Credits: substantial pass-thru, over half of every dollar is passed through to care providers in the form of higher prices and wages

Give Credit Where?: The Incidence of Child Care Tax Credits. Luke P. Rodgers. Journal of Urban Economics, https://doi.org/10.1016/j.jue.2018.10.002

Abstract: The cost of child care can affect a family’s employment, location, and commuting decisions. Child care tax credits are intended to relieve the financial burden of child care for working families, yet the benefit incidence may fall on child care providers if they increase prices in response to credit generosity. Using policy-induced variation in the Child and Dependent Care Credit, this paper presents evidence of substantial pass-through: over half of every dollar is passed through to providers in the form of higher prices and wages. Increased non-refundable credit generosity may have the unintended effect of making child care less affordable for low-income families, a result with distributional and spatial implications due to income sorting of families within an urban area.

The One Percent in New Zealand more strongly legitimize the political & economic systems in society, express lower support for redistributive taxation; & report higher life satisfaction, self-esteem & belongingness compared to everyone else

The Political Attitudes and Subjective Wellbeing of the One Percent. Nikhil K. Sengupta, Chris G. Sibley. Journal of Happiness Studies, https://link.springer.com/article/10.1007/s10902-018-0038-4

Abstract: In capitalist societies, individuals who occupy the highest positions in the economic hierarchy feature prominently in the political discourse under the moniker of the One Percent. However, little is known about how the psychology of One Percent might differ from that of the average person. Using a large, nationally representative sample in New Zealand (N = 14,650), we aimed to fill this gap examining the political attitudes and subjective wellbeing of the top one percent of the income distribution. We found that, compared to general public, the One Percent in New Zealand more strongly legitimize the political and economic systems in society, and express lower support for redistributive taxation. They also report higher life satisfaction, self-esteem and belongingness compared to everyone else. Thus, the One Percent benefit not only economically and politically from the current system, but also psychologically. Moreover, their political beliefs serve to bolster the inequality from which they benefit.

Keywords: Inequality One Percent Political attitudes Subjective wellbeing

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“We are the 99%”—the rallying cry of the Occupy Wall Street movement—was a call for society to unite against the disproportionate power of a small group of economic elites: The One Percent (Occupy Wall Street 2011). This moniker of the One Percent has now entered the lexicon and become a prominent feature of the political discourse on inequality in Western democracies (e.g., The Equality Trust 2017; Carroll and Kertscher 2016). The people to whom this label is applied are argued to be using their influence to bend policy to their own ends, subverting the democratic process (e.g., Stilgitz 2011).

However, these arguments are currently being made in the absence of data about the how the political psychology of individuals that constitute this group might differ from that of the average person. We know very little about how the One Percent view the political and economic systems under which they live, or how they feel about redistributive policies designed to reduce inequality. These are important gaps because claims about how the One Percent exercise their power depend upon claims about their political attitudes as a group (see Gilens 2005). We aim to fill these gaps by comparing the political attitudes of the One Percent in New Zealand to the general population, using a large, representative sample (N = 14,650; see Table 1 for a comparison between New Zealand’s One Percent and the One Percent in other major economies).

How cohabitation, marriage, separation, and divorce influence BMI: The benefits of marriage or cohabitation do not necessarily include a healthier BMI

Mata, J., Richter, D., Schneider, T., & Hertwig, R. (2018). How cohabitation, marriage, separation, and divorce influence BMI: A prospective panel study. Health Psychology, 37(10), 948-958. dx.doi.org/10.1037/hea0000654

Objective: This study examines how changes in cohabitation or marital status affect Body Mass Index (BMI) over time in a large representative sample.

Method: Participants were 20,950 individuals (50% female; 19 to 100 years), representative of the German population, who provided 81,926 observations over 16 years. Face-to-face interviews were used to obtain demographic data, including cohabitation and marital status, height, body weight, and weight-relevant behaviors (exercise, healthy eating, and smoking). Control variables included age, notable changes in status (life events such as having children or change in employment status), perceived stress, and subjective health.

Results: Cohabitation led to significant weight gain in men and women—after four years or longer, about twice the gain associated with marriage (controlling for weight-related behaviors, age, children, employment, stress, and health). BMI after separation was largely comparable to BMI before starting cohabitation; women lost some weight in the first year, men gained some weight after four or more years of separation. Divorce generally predicted weight gain. Changes in exercise, healthy eating, and smoking did not attenuate the effect of changes in relationship status on BMI.

Conclusions: This is among the first longitudinal studies to directly compare the effects of key changes in relationship status on BMI. The findings extend and qualify previous results by showing that the benefits of marriage or cohabitation do not necessarily include a healthier BMI. They also suggest that relationship transitions—particularly moving in with a partner and divorce—may be important time windows for weight gain prevention.

A Reanalysis of Creativity & Religiosity: Creativity & religiosity have a negative relationship in terms of people's attitudes & values toward creativity as well as their perceptions of environment for creativity

Creativity and Religiosity: A Reanalysis with Regional Predictors. Selcuk Acar, Mark A. Runco & Uzeyir Ogurlu. Creativity Research Journal, Volume 30, 2018 - Issue 3, Pages 316-321, https://doi.org/10.1080/10400419.2018.1488349

Abstract: Building on previous research showing a negative relationship between conservatism and creativity, the present investigation focused specifically on religiosity in the context of the United States. Because of the association between conservatism and religiosity, creativity might have a negative association with religiosity, too. To this end, individuallevel and regional data were matched by linking responses to psychometric measures such as Attitudes and Values toward Creativity to regional data such as church attendance. These analyses controlled other regional variables including education, diversity, and socio-economic status. Two-level analyses with individual data at Level 1 and county data at Level 2 indicated that people from more religious locations held less positive attitudes and values toward creativity and rated their environment as less creative. On the other hand, creative personality, ideational behavior and creative achievement were not significantly related to religiosity. Those analyses provided evidence that creativity and religiosity have a negative relationship in terms of people's attitudes and values toward creativity as well as their perceptions of environment for creativity. Findings were discussed in terms of types of religiosity and other socio-cultural variables.