Despite the dominant presence of traditional gender portrayals on television, there is a growing effort to incorporate more diverse gender representations, including in youth television series. The impact of such counter-stereotypical portrayals on preadolescents\' gender attitudes and beliefs remains largely unexplored. This mixed-design experimental study among 75 mother-child dyads (Mage child = 10.69, SD = 1.37) examined the effects of watching an episode of an entertainment television program that positively portrays a transgender character, either alone or with the mother. The findings indicated that watching the episode lowered preadolescents\' gender essentialism, but did not increase acceptability of and willingness to befriend gender-nonconforming peers. Maternal presence did not further impact the findings. Perceived similarity to and liking of the transgender character did not act as moderators, but had a direct impact on preadolescents\' gender attitudes and beliefs. In conclusion, the results suggest that exposure to counter-stereotypes in entertainment television can influence components of preadolescents\' gender attitudes and beliefs. Gender-diverse television characters who are perceived as highly similar and likeable appear to be particularly influential.

UNASSIGNED: This study examines how characteristics of victims and types of incidents described in a media account of gun violence affect public support for three categories of policies that regulate firearms.
UNASSIGNED: A randomized experiment with a sample of US public (N = 3410).
UNASSIGNED: Victim race, particularly if the victim was Black, was a strong predictor of less public support for all tested categories of firearm regulation. Respondents were less supportive of policies to address gun suicide or accidents and more supportive of policy solutions to mass shootings, compared to street-level gun homicides. Depictions of victim gender, mental illness, prior incarceration, and age were less salient to support across categories of firearm regulation, compared to race and type of incident.
UNASSIGNED: Media coverage of gun violence has heterogenous effects on public support for firearm regulation and may influence support for policies aimed at reducing specific types of gun violence.

UNASSIGNED: In oral and maxillofacial surgery, hard tissue augmentation is provided by materials that accelerate the healing, act as a template for reconstructing bony defects, and stimulate bone production and growth. This study investigated the effects of biocompatible carriers containing active vitamin D and platelet-rich plasma (PRP) on bone defects created in rat calvaria.
UNASSIGNED: This experimental animal study utilized fifty-two male Sprague Dawley rats divided into six groups and conducted histopathological, microtomographic, and biochemical comparisons by adding vitamin D, which has an accelerating effect on bone development. We examined the calvarial defects, sacrificing the rats in equal numbers (eight in each group and four to obtain PRP) at the first, second, fourth, and eighth weeks. The newly formed bone was assessed using histopathologic, microtomographic, and macroscopic methods as well as the biochemical analysis performed in the plasma samples. Expression of fibroblast growth factor 23 (FGF23), vitamin D receptor (VDR), and receptor activator of nuclear factor-kappa B (RANK), which determine bone formation, were investigated. The amounts of ossification, bone volume, and mineral densities were significantly higher in the fourth and eighth weeks as the biocompatible material was delivered with calcitriol.
UNASSIGNED: The histological and macroscopic examinations revealed that the defect area shrank and was colonized with new cells in the \"calcitriol + chitosan + PRP\" group. The expression of RANK, FGF23, and VDR antibodies was more intense in the \"calcitriol + chitosan + PRP\" group than in other groups of the experiment and controls.
UNASSIGNED: Active vitamin D, PRP, and chitosan formulation positively contributed to the repair of bone defects and induced remarkable clinical improvement. This new delivery approach could be promising for healing bone defects following surgical operations in hard bony tissues. HIPPOKRATIA 2023, 27 (2):48-56.

Responses to increased alcohol availability may vary across the population as a function of differential vulnerability. This study therefore aimed to examine the effects of the implementation of Saturday opening at the Swedish alcohol retail monopoly in 2000 on risks of hospitalisation due to external causes (HEC) among different population subgroups. Leveraging the experimental design of the reform, longitudinal difference-in-differences analyses were applied to a register-based cohort of individuals aged 20-40 at the time of implementation. The population was stratified into groups of Swedish, Finnish, and Middle Eastern origin, known to represent different levels of alcohol consumption and rates of alcohol-related morbidity. Results showed a 17.7% increase (p<0.029) in the risk of HEC among individuals of Finnish origin, as jointly caused by both increased prevalence in the experiment area and decreased prevalence in the control area. The increase was primarily driven by younger men with lower levels of education. Those of Swedish origin exhibited largely similar patterns (9.7% increase; p<0.001) while no measurable impact was observed among individuals of Middle Eastern origin (-21.4% decrease; p<0.076). The findings confirm that increasing alcohol availability contributes to the disease burden related to alcohol among population subgroups already susceptible to its effects.

UNASSIGNED: The stereotype content model postulates that different groups evoke different emotions and reactions based on two dimensions: intention toward others (warmth) and competence.
UNASSIGNED: In this study, we used an experimental design and a qualitative approach to investigate how managerial strategies are selected and motivated when a subordinate makes a work task related error but belongs to a group that is stereotypical perceived differently in terms of warmth and competence (age groups with or without a medical condition). Thus 75 employees analyzed one of the five hypothetical cases and described the managerial strategy and motivation for usage.
UNASSIGNED: Data revealed that managerial strategies incorporate more active harm elements for younger employees in contrast with vulnerable groups (older employees with unspecified medical conditions, younger or older employees with a medical condition), who benefit from more active facilitation strategies. The strategy usage motivation is also different in the case of younger employees, the control group and the vulnerable groups.
UNASSIGNED: The study outcomes bring additional evidence to support the stereotype content model theory and the socioemotional selectivity theory, enriching applicability on organizational practice and human resources management.

UNASSIGNED: Social norm appeals are effective in promoting sustainable majority behavior but could backfire when the target behavior is only performed by a minority of people. However, emphasizing that an increasing number of people have started engaging in the behavior or that the majority approve the behavior might prevent such negative effects. However, only a few studies have investigated the combination of descriptive minority and injunctive majority social norm appeals, with inconsistent results. Some studies of minority behavior suggest that the characteristics of recipients might determine the inconsistent results regarding the impact of minority social norm appeals and that social norm appeals could have a greater impact on individuals with weaker environment related dispositions.
UNASSIGNED: Two two-wave studies investigated how descriptive minority appeals, injunctive majority appeals, and their combination can be used to motivate sustainable minority behavior and what role environment related dispositions play in this context. In the first part, perceived social norms, environment related dispositions, behavioral intentions, and pre-attitudes were measured. Two weeks later, respondents participated in a 3 (descriptive social norm appeal: static vs. dynamic vs. absent) × 2 (injunctive majority social norm appeal: present vs. absent) between-subjects experiment and watched an explainer video on voluntary carbon offsets that included various social norm appeals.
UNASSIGNED: In both studies, we found that social norm appeals influenced perceived social norms. However, persuasive effects were only observed in the first study, and an injunctive majority appeal increased persuasive outcomes, but there were no differences between the descriptive conditions and no differences in their impact depending on individuals\' environment related dispositions in either study.
UNASSIGNED: A single exposure may be insufficient to exert persuasive effects and the change in perceived social norms may first need to be internalized. In online explainer videos, the effects of social norm appeals could be amplified by algorithm-based suggestions and when social norm appeals draw attention to norm-conforming content. However, further research is required on the long-term effects and their possible amplification via social media.

Research suggests that a defendant\'s history of experiencing childhood abuse, and its effects on their life and later decision-making, may impact public support for a defendant\'s sentencing, particularly mitigation. However, no existing research has examined how and why sentencing support may vary based on the time period when the abuse occurs during a defendant\'s childhood. This experiment, using a sample of the U.S. public (N = 400), examines how the age at which a defendant\'s childhood physical abuse occurs affects lay support for the goals of their sentencing. We hypothesized that participants with higher levels of social and biological trait essentialism would moderate their increased support for more punitive sentencing goals-particularly when a defendant was abused earlier, rather than later, in childhood. Results suggest that social essentialism is associated with increased support for restoration and rehabilitation toward defendants with histories of childhood physical abuse, potentially indicating that the public views the effects of child abuse as more of a social, versus biological, process which may affect support for utilitarian punishment goals.

Real-world communication frequently requires language producers to address more than one comprehender at once, yet most psycholinguistic research focuses on one-on-one communication. As the audience size grows, interlocutors face new challenges that do not arise in dyads. They must consider multiple perspectives and weigh multiple sources of feedback to build shared understanding. Here, we ask which properties of the group\'s interaction structure facilitate successful communication. We used a repeated reference game paradigm in which directors instructed between one and five matchers to choose specific targets out of a set of abstract figures. Across 313 games (N = 1,319 participants), we manipulated several key constraints on the group\'s interaction, including the amount of feedback that matchers could give to directors and the availability of peer interaction between matchers. Across groups of different sizes and interaction constraints, describers produced increasingly efficient utterances and matchers made increasingly accurate selections. Critically, however, we found that smaller groups and groups with less-constrained interaction structures (\"thick channels\") showed stronger convergence to group-specific conventions than large groups with constrained interaction structures (\"thin channels\"), which struggled with convention formation. Overall, these results shed light on the core structural factors that enable communication to thrive in larger groups.

BACKGROUND: The use of targeted advertisements on social media platforms (eg, Facebook and Instagram) has become increasingly popular for recruiting participants for online survey research. Many of these surveys offer monetary incentives for survey completion in the form of gift cards; however, little is known about whether the incentive amount impacts the cost, speed, and quality of data collection.
OBJECTIVE: This experiment addresses this gap in the literature by examining how different incentives in paid advertising campaigns on Instagram for completing a 10-minute online survey influence the response rate, recruitment advertising cost, data quality, and length of data collection.
METHODS: This experiment tested three incentive conditions using three Instagram campaigns that were each allocated a US $1400 budget to spend over a maximum of 4 days; ads targeted users aged 15-24 years in three nonadjacent designated market areas of similar size to avoid overlapping audiences. Four ad creatives were designed for each campaign; all ads featured the same images and text, but the incentive amount varied: no incentive, US $5 gift card, and US $15 gift card. All ads had a clickable link that directed users to an eligibility screener and a 10-minute online survey, if eligible. Each campaign ran for either the full allotted time (4 days) or until there were 150 total survey completes, prior to data quality checks for fraud.
RESULTS: The US $15 incentive condition resulted in the quickest and cheapest data collection, requiring 17 hours and ad spending of US $338.64 to achieve 142 survey completes. The US $5 condition took more than twice as long (39 hours) and cost US $864.33 in ad spending to achieve 148 survey completes. The no-incentive condition ran for 60 hours, spending nearly the full budget (US $1398.23), and achieved only 24 survey completes. The US $15 and US $5 incentive conditions had similar levels of fraudulent respondents, whereas the no-incentive condition had no fraudulent respondents. The completion rate for the US $15 and US $5 incentive conditions were 93.4% (155/166) and 89.8% (149/166), respectively, while the completion rate for the no-incentive condition was 43.6% (24/55).
CONCLUSIONS: Overall, we found that a higher incentive resulted in quicker data collection, less money spent on ads, and higher response rates, despite some fraudulent cases that had to be dropped from the sample. However, when considering the total incentive amounts in addition to the ad spending, a US $5 incentive appeared to be the most cost-effective data collection option. Other costs associated with running a campaign for a longer period should also be considered. A longer experiment is warranted to determine whether fraud varies over time across conditions.

The COVID-19 pandemic was an unprecedented threat to global health. During times of public health crises, governments and healthcare practitioners must effectively communicate preventive guidelines to the public to reduce viral transmission. Public compliance with recommended health behaviours is essential to the success of the overall pandemic response. This online experiment investigated the persuasiveness of visual message format on COVID-19 handwashing guidelines on people\'s behavioural intentions. A total of 350 participants, recruited through Amazon\'s MTurk, were randomly assigned to one of three information format conditions: text, infographic, or video. Results indicated that perceived severity, benefits, self-efficacy, cues to action, and perceived barriers significantly predicted people\'s intentions to comply with suggested preventive guidelines. There were no significant differences between the three information formats, in terms of behavioural intentions. These results have consequences for identifying and implementing public health strategies for a global health crisis such as the COVID-19 pandemic to achieve higher citizen engagement, and for understanding future emerging infectious disease preparedness.