What works to increase charitable donations? A meta-review with meta-meta-analysis

Many charities rely on donations to support their work addressing some of the world’s most pressing problems. We conducted a meta-review to determine what interventions work to increase charitable donations. We found 21 systematic reviews incorporating 1339 primary studies and over 2,139,938 participants. Our meta-meta-analysis estimated the average effect of an intervention on charitable donation size and incidence: r = 0.08 (95% CI [0.03, 0.12]). Due to limitations in the included systematic reviews, we are not certain this estimate reflects the true overall effect size. The most robust evidence found suggests charities could increase donations by (1) emphasising individual beneficiaries, (2) increasing the visibility of donations, (3) describing the impact of the donation, and (4) enacting or promoting tax-deductibility of the charity. We make recommendations for improving primary research and reviews about charitable donations, and how to apply the meta-review findings to increase charitable donations

Many Labs 2: Investigating Variation in Replicability Across Samples and Settings

We conducted preregistered replications of 28 classic and contemporary published findings, with protocols that were peer reviewed in advance, to examine variation in effect magnitudes across samples and settings. Each protocol was administered to approximately half of 125 samples that comprised 15,305 participants from 36 countries and territories. Using the conventional criterion of statistical significance (p < .05), we found that 15 (54%) of the replications provided evidence of a statistically significant effect in the same direction as the original finding. With a strict significance criterion (p < .0001), 14 (50%) of the replications still provided such evidence, a reflection of the extremely highpowered design. Seven (25%) of the replications yielded effect sizes larger than the original ones, and 21 (75%) yielded effect sizes smaller than the original ones. The median comparable Cohen’s ds were 0.60 for the original findings and 0.15 for the replications. The effect sizes were small (< 0.20) in 16 of the replications (57%), and 9 effects (32%) were in the direction opposite the direction of the original effect. Across settings, the Q statistic indicated significant heterogeneity in 11 (39%) of the replication effects, and most of those were among the findings with the largest overall effect sizes; only 1 effect that was near zero in the aggregate showed significant heterogeneity according to this measure. Only 1 effect had a tau value greater than .20, an indication of moderate heterogeneity. Eight others had tau values near or slightly above .10, an indication of slight heterogeneity. Moderation tests indicated that very little heterogeneity was attributable to the order in which the tasks were performed or whether the tasks were administered in lab versus online. Exploratory comparisons revealed little heterogeneity between Western, educated, industrialized, rich, and democratic (WEIRD) cultures and less WEIRD cultures (i.e., cultures with relatively high and low WEIRDness scores, respectively). Cumulatively, variability in the observed effect sizes was attributable more to the effect being studied than to the sample or setting in which it was studied.UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Sociales::Instituto de Investigaciones Psicológicas (IIP

The dual-pathway model of collective action: impacts of types of collective action and social identity

In three experiments, we manipulated procedural fairness (Experiment 1) and group-based anger and group efficacy (Experiments 2 and 3) to investigate the independent pathways of anger and efficacy for collective action in China. In Experiment 3 we also examined pathways to “soft” (low-cost) and “hard” (high-cost) collective action. Our results supported the dual-pathway model of collective action: group-based anger and perceived group efficacy independently predicted collective action intentions to protest against increased school fees and unhygienic cafeteria conditions for Chinese university students. Group-based anger predicted soft collective action intentions; both anger and efficacy predicted hard collective action intentions. Identification with the disadvantaged group was found to moderate the problem-focused coping pathway for hard collective action intentions. For high but not low identifiers, manipulated group efficacy predicted hard collective action intentions. We discuss our findings with specific reference to collective action research in China

Threats to belonging on Facebook: lurking and ostracism

We examined two threats to belonging and related needs on Facebook: lurking (Study 1) and ostracism (Study 2). In Study 1, participants were either allowed or not allowed to share information on Facebook for 48 hours. Those who were not allowed to share information had lower levels of belonging and meaningful existence. In Study 2, participants engaged in a laboratory-based Facebook activity. Half of the profiles were set up so that participants would not receive any feedback on their status updates. Participants who did not receive feedback on their updates had lower levels of belonging, self-esteem, control, and meaningful existence. Together, these findings indicate that a lack of information sharing and feedback can threaten belonging needs

Social connectedness improves public mental health: investigating bidirectional relationships in the New Zealand attitudes and values survey

The importance of social connectedness in supporting public mental health is well established. However, the reverse causal pathway (that psychological ill-health leads to reduced social connectedness) remains a dominant perspective among mental health practitioners. Our analysis aimed to provide a rigorous test of the directionality of this relationship.A cross-lagged panel analysis of a large longitudinal national probability sample ( N ≈ 21,227), the New Zealand Attitudes and Values Survey, was used to assess the bidirectional longitudinal relationship between social connectedness and mental health, controlling for baseline levels of both variables and demographics.Social connectedness was found to be a stronger and more consistent predictor of mental health year-on-year than mental health was of social connectedness.These results further demonstrate how the psychological resources conferred by social connectedness can act as a 'social cure' for psychological ill-health, and provide the strongest evidence to date for the direction of this relationship in the general community

A yellow filter improves response times to low-contrast targets and traffic hazards

PURPOSE: Anecdotal evidence suggests that some sunglass users prefer yellow tints for outdoor activities, such as driving, and research has suggested that such tints improve the apparent contrast and brightness of real-world objects. The aim of this study was to establish whether yellow filters resulted in objective improvements in performance for visual tasks relevant to driving. METHODS: Response times of nine young (age [mean ± SD], 31.4 ± 6.7 years) and nine older (age, [mean ± SD], 74.6 ± 4.8) adults were measured using video presentations of traffic hazards (driving hazard perception task) and a simple low-contrast grating appeared at random peripheral locations on a computer screen. Response times were compared when participants wore a yellow filter (with and without a linear polarizer) versus a neutral density filter (with and without a linear polarizer). All lens combinations were matched to have similar luminance transmittances (~27%). RESULTS: In the driving hazard perception task, the young but not the older participants responded significantly more rapidly to hazards when wearing a yellow filter than with a luminance-matched neutral density filter (mean difference, 450 milliseconds). In the low-contrast grating task, younger participants also responded more quickly for the yellow filter condition but only when combined with a polarizer. Although response times increased with increasing stimulus eccentricity for the low-contrast grating task, for the younger participants, this slowing of response times with increased eccentricity was reduced in the presence of a yellow filter, indicating that perception of more peripheral objects may be improved by this filter combination. CONCLUSIONS: Yellow filters improve response times for younger adults for visual tasks relevant to driving

Predicting Facebook users online privacy protection: risk, trust, norm focus theory, and the theory of planned behavior

The present research adopts an extended theory of the planned behavior model that included descriptive norms, risk, and trust to investigate online privacy protection in Facebook users. Facebook users (N = 119) completed a questionnaire assessing their attitude, subjective injunctive norm, subjective descriptive norm, perceived behavioral control, implicit perceived risk, trust of other Facebook users, and intentions toward protecting their privacy online. Behavior was measured indirectly 2 weeks after the study. The data show partial support for the theory of planned behavior and strong support for the independence of subjective injunctive and descriptive norms. Risk also uniquely predicted intentions over and above the theory of planned behavior, but there were no unique effects of trust on intentions, nor of risk or trust on behavior. Implications are discussed. © Copyrigh

Risk and protective factors for mental health at a youth mass gathering

Background: Mass gatherings are well-documented for their public health risks; however, little research has examined their impact on mental health or focused on young people specifically. This study explores risk and protective factors for mental health at mass gatherings, with a particular focus on characterising attendees with high levels of psychological distress and risk taking. Method: Data collection was conducted in\ua0situ at “Schoolies”, an annual informal week-long mass gathering of approximately 30,000 Australian school leavers. Participants were 812 attendees of Schoolies on the Gold Coast in 2015 or 2016 (74% aged 17\ua0years old). Results: In both years, attendee mental health was found to be significantly better than population norms for their age peers. Identification with the mass gathering predicted better mental health, and this relationship became stronger across the course of the mass gathering. Attendees with high levels of psychological distress were more likely to be male, socially isolated, impulsive, and in a friendship group where risk taking was normative. Conclusions: Mass gatherings may have a net benefit for attendee mental health, especially for those attendees who are subjectively committed to the event. However, a vulnerable subgroup of attendees requires targeted mental health support