A replication of the use of public posting in traffic speed control

In an attempt to replicate several previous studies, a reversal design was used to assess the effects of publicly posted feedback on vehicle speed reduction. The intervention phases consisted of daily posted feedback that supplied drivers with either accurate or inaccurate information regarding the percentage of vehicles exceeding the speed limit on the road. Results from the two feedback conditions indicated no speed reduction in comparison to baseline levels. These results are discussed in light of previous studies that found strong effects for such feedback. Baseline levels of driver compliance and methodological differences may limit the effectiveness of posted feedback in reducing speeding.     

大学生网络捐助的影响因素:求助者特征的视角

以往关于捐助的心理学研究主要聚焦于现实环境中的捐助行为,以及捐助者自身特点对捐助的影响,网络环境、求助者特征对捐助影响的研究较少。本研究以大学生为被试,比较不同信息发布者情境中,网络与现实中捐助的意愿,并确定求助者的身份特征和求助信息特征对网络捐助的影响。结果发现,在捐助意愿和捐助金额方面,网络渠道高于现实渠道、熟人发布高于陌生人发布;当求助者与捐助者同为大学生时,捐助者对求助者的理性求助信息比情绪性求助信息有更强的捐助意愿和更多捐助金额。以上结果与大学生网络社会支持水平较高、处理网络信息能力较强有关。     

大学生网络捐助的影响因素:求助者特征的视角

以往关于捐助的心理学研究主要聚焦于现实环境中的捐助行为,以及捐助者自身特点对捐助的影响,网络环境、求助者特征对捐助影响的研究较少。本研究以大学生为被试,比较不同信息发布者情境中,网络与现实中捐助的意愿,并确定求助者的身份特征和求助信息特征对网络捐助的影响。结果发现,在捐助意愿和捐助金额方面,网络渠道高于现实渠道、熟人发布高于陌生人发布;当求助者与捐助者同为大学生时,捐助者对求助者的理性求助信息比情绪性求助信息有更强的捐助意愿和更多捐助金额。以上结果与大学生网络社会支持水平较高、处理网络信息能力较强有关。     

A review of online social networking profiles by adolescents: implications for future research and intervention

This study explored content posted and interactions taking place on adolescent online social networking profiles. Although "blogging" continues to soar in popularity, with over half of teenagers online participating in some form, little research has comprehensively explored blog communication within the context of adolescent development. Content was qualitatively coded from 100 randomly selected profiles authored by adolescents between the ages of 16 and 18. Rich thematic elements were identified including family and social issues, risk behaviors, disclosure of personally identifiable information, and frequent peer interaction. Results indicate adolescent blogs frequently contain appropriate images, positive comments about parents and peers, athletics, a variety of risk behaviors, and sexual and profane language. In addition, school type was examined (public versus private, religious) as a potential factor in understanding the differences in content posted by adolescents; however, no significant differences were found. Implications for parental monitoring and intervention are discussed as well as direction for future research. Adolescents' online profiles contain a wealth of intimate, candid, and publicly available information on a wide range of social issues pertinent to adolescence that contribute to the understanding of adolescent development and well-being.     

Pro-social behaviour in young passengers: Predictive utility of the social reaction pathway of the prototype willingness model

This study examined the social reaction pathway of the Prototype Willingness Model (PWM) to assess how attitudes, subjective norms, prototype perception (favourability and similarity), and risk perception influenced young passengers’ willingness to speak up to a driver exceeding the posted speed limit by either 5 km/h or 10 km/h. It was hypothesised that participants would be more willing to speak up to drivers’ travelling 10 km/h over the posted speed limit than 5 km/h over the posted speed limit. Further, it was hypothesised that the PWM constructs would significantly predict passenger willingness to speak up to a driver travelling 5 km/h over the posted speed limit and 10 km/h over the posted speed limit. Young Australians aged 17 to 25 years (N = 136, Mage = 19.32, 77.9% female) were recruited to complete a 30-minute online questionnaire. As predicted, passengers were significantly more willing to speak up to drivers travelling at 10 km/h over the posted speed limit than drivers travelling 5 km/h over the posted speed limit. Further, the results from a linear regression revealed that some of the PWM constructs were effective in explaining the variance in willingness to speak-up to drivers travelling either 5 km/h or 10 km/h over the posted speed limit. These findings address a gap in road safety research by shifting focus from the behaviour of drivers to the behaviour of passengers. The focus on the pro-social behaviour of speaking up to drivers performing risk taking behaviours may help to inform future educational campaigns and interventions designed to reduce young peoples’ involvement in road crashes.     

Externalising the autobiographical self: sharing personal memories online facilitated memory retention

Internet technology provides a new means of recalling and sharing personal memories in the digital age. What is the mnemonic consequence of posting personal memories online? Theories of transactive memory and autobiographical memory would make contrasting predictions. In the present study, college students completed a daily diary for a week, listing at the end of each day all the events that happened to them on that day. They also reported whether they posted any of the events online. Participants received a surprise memory test after the completion of the diary recording and then another test a week later. At both tests, events posted online were significantly more likely than those not posted online to be recalled. It appears that sharing memories online may provide unique opportunities for rehearsal and meaning-making that facilitate memory retention.     

Increasing recycling in office environments: The effects of specific, informative cues

We investigated the effects of prompts on the recycling behavior of approximately 217 faculty, staff, and graduate students in two academic departments of a large university. During the intervention, two signs were posted in each department. One sign prompted recycling (posted above the recycling receptacle), and the other sign prompted proper disposal of trash (posted above the trash receptacle). Results of a multiple baseline design across the two departments indicated that the sign prompt increased recycling behavior. Installation of the sign prompts in close proximity to receptacles in Department A resulted in a 54% improvement over baseline. Posting of sign prompts over containers 4 m apart in Department B resulted in a 17% improvement, whereas positioning the signs and receptacles in close proximity resulted in a 29% improvement over baseline.     

Reputation blackboard systems

Blackboard systems are motivated by the popular view of task forces as brainstorming groups in which specialists write promising ideas to solve a problem in a central blackboard. Here we study a minimal model of blackboard system designed to solve cryptarithmetic puzzles, where hints are posted anonymously on a public display (standard blackboard) or are posted together with information about the reputations of the agents that posted them (reputation blackboard). We find that the reputation blackboard always outperforms the standard blackboard, which, in turn, always outperforms the arrangement where the agents work independently. The asymptotic distribution of the computational cost of the search, which is proportional to the total number of agent updates required to find the solution of the puzzle, is an exponential distribution for those three search heuristics. Only for the reputation blackboard we find a nontrivial dependence of the mean computational cost on the system size and, in that case, the optimal performance is achieved by a single agent working alone, indicating that, though the blackboard organization can produce impressive performance gains when compared with the independent search, it is not very supportive of cooperative work.     

Behavioral interventions to improve performance in collegiate football

Using a multitreatment withdrawal design, this study evaluated the differential effects of publicly posted plus verbal feedback, goal setting plus verbal feedback, and publicly posted feedback, verbal feedback, and goal setting together on the performance of 3 collegiate football players in practice scrimmages. Also assessed was whether the changes in practice behavior generalized to games. The dependent variables were performances on three wide receiver skills. The results show that public posting with verbal feedback, goal setting, and public posting with verbal feedback and goal setting were effective in improving player performance to a 90% criterion level during practice, and these changes generalized to game performance.     

Using public feedback to increase contributions to a multipurpose senior center

Multipurpose senior centers are expanding their services to meet the demands of a growing population. Unfortunately, federal agencies have not matched this expansion with monetary support. Many senior centers hold fund-raisers to supplement their budgets, but the impact of these projects is rarely evaluated. This study assessed the effectiveness of a public posting strategy designed to increase donations to an ongoing fund-raiser for a multipurpose senior center. The fund-raiser, "Coupons for Caring," consisted of senior volunteers clipping grocery coupons from newspapers, sorting them, and attaching them to their respective products in local grocery stores. Grocery store customers were given the option of donating the coupons to the senior center or redeeming them when they purchased the products to which the coupons were attached. In the experimental condition, signs were posted that included visual and written instructions, feedback on the value of coupons donated by customers the previous week, and feedback on the overall amount of money donated to the senior center. The signs were posted near each cashier stand and at the front entrances of the grocery stores in a multiple baseline across grocery stores. The percentage of coupons donated to the senior center increased at each store after the signs were posted.     

LARGE-SCALE REDUCTIONS IN SPEEDING AND ACCIDENTS IN CANADA AND ISRAEL: A BEHAVIORAL ECOLOGICAL PERSPECTIVE

We assessed the effects of posted feedback and warning ticket programs on speeding and accidents in two cities. In Experiment 1, speeding feedback signs were effective even when 10 were used in Dartmouth, Nova Scotia, and reductions in speeding were associated with reductions in accidents. The effectiveness of the signs was correlated with the number of intersections and residences within 0.5 km beyond them, and the signs had no effect on untreated streets. In Experiment 2, posted feedback and a warning program reduced speeding and accidents on 14 streets in Haifa, Israel.     

Assessment of drivers' comprehension of traffic signs based on their traffic,personal and social characteristics

The relationship between drivers' personal characteristics and their comprehension of posted signs is investigated in this study. The characteristics considered here include: experience, accident per experience ratio, age, marital status, sex type, nationality, educational background and monthly income. The populations sampled are from Bahrain, Kuwait, Oman, Qatar and United Arab Emirates. A total of 28 posted signs were considered.On an average, drivers comprehended only 56% of the posted signs. Education, monthly income and nationality were related to drivers' comprehension of traffic signs. Western drivers comprehend the signs better than other nationalities. Gulf Cooperation Council States and Arab drivers comprehended the signs less well. Male drivers scored higher than female ones. Age, marital status, experience and accident rates had no effect on drivers comprehension of signs. The results raise serious questions about the applicability of the signing system worldwide. The results indicate that drivers' personal characteristics are primarily associated with their understanding capabilities and not with their accident involvement rates. These findings are believed to be important for the designers of road signs. They are also important for the decision makers for proper allocation of resources in the field of traffic education.     

angels,bandidos, outlaws,and pagans: the evolution of organized crime among the big four 1% motorcycle clubs

This study presents an examination of characteristics of men who engage in bareback sex for purposes of bug chasing and bug giving. Drawing on personal ads posted on an Internet website geared for men seeking male sexual partners, the present analysis focuses on identifying characteristics of men seeking to become HIV infected (bug chasers) and men seeking to intentionally infect others with HIV (bug givers). Nearly one in ten ads posted during a one-year period are identified as from bug chasers or bug givers and serve as the sample for analysis. Results reveal a profile of bug chasers and bug givers, with demographic, appearance, sexual activity preferences, and degree of openness differences between the two groups.     

PROMOTING SAFETY BELT USE WITH TRAFFIC SIGNS AND PROMPTERS

Two studies were conducted examining the stimulus-control effects of conventional traffic signs as prompts for motor vehicle driver safety belt use. Following pilot research which suggested that a traffic sign reading “Fasten Safety Belt” posted at a parking lot exit was effective in producing small increases in safety belt use, Study I demonstrated the superiority of having human prompters display such signs compared to simply posting the signs. Study II replicated the findings of Study I and found that posted signs became more effective in prompting safety belt use if simple posting was preceded by a period involving human prompters who displayed the signs. The results bear upon the development of more effective use of traffic signs in promoting safety belt use and in viewing such use as an instance of rule-governed behavior.     

BEHAVIORAL COMMUNITY INTERVENTION TO REDUCE THE RISK OF SKIN CANCER

Peer leader modeling, posted feedback, posted goals, and a commitment raffle were used at two swimming pools to increase behaviors associated with skin cancer prevention. During the intervention condition, pool lifeguards modeled the protective behaviors by wearing sunglasses, t-shirts, and hats, using zinc oxide and sunscreen, and staying in the shade. Children and adolescents (1 to 16 years old) increased their use of two or more protective behaviors from a baseline mean of 6.5% to 26.9% during the intervention. Adults (older than 16 years) increased their protective behaviors from a baseline mean of 22% to 37.95% during the intervention. The lifeguards increased their use of all the protective behaviors from a baseline mean of 16.7% to 63.5% during intervention. Ways to improve and expand this intervention are discussed.     

I hear, I listen and I care: a qualitative investigation into the function of a self-harm message board

This paper reports on the findings of a qualitative inquiry into the interactions on a nonprofessional self-harm message board. Individuals using the message board were very positive about the message board and appeared to feel that their needs for support, venting, and validation were being met. However, we found that negative harmful behaviors mentioned in messages posted on the board were either not acknowledged, or were legitimized and normalized by those who responded to the messages. We suggest that this process of minimizing the seriousness and/or normalizing the behaviors may actually be encouraging the maintenance of such behaviors and therefore conclude that caution should be exercised when using nonprofessional self-harm message boards.     

New systems: new behaviour?

Traditional methods of speed reduction such as traffic calming and enforcement tend to have only local effects. A global speed reducing measure, Intelligent Speed Adaptation (ISA) which restricts drivers to the posted speed limit is being considered as an alternative. This paper reports a driving simulator study that evaluated the effects of such a system on driver behaviour. Measures of safety were taken when drivers drove with and without an ISA system, in addition to subjective measures of workload and acceptability. A number of changes in behaviour were noted, whereby drivers were more inclined to engage in riskier behaviour when the ISA system was operational. These changes were accompanied by reductions in maximum speeds, particularly in low speed limit areas and at speed limit transition points. It is suggested that the combinatory effects of these changes in behaviour have to be considered within the context of total network safety.     

Benedict XVI and Islam: Indonesian Public Reactions to the Regensburg Address

This paper examines the responses of the Indonesian public sphere in the reform era to Pope Benedict XVI's call for interfaith dialogue in his speech made in Regensburg on 12 September 2006. It explores five op-ed (opinion and editorial) columns published by Indonesian newspapers (Republika, Harian Pikiran Rakyat, The Jakarta Post and Gatra), a piece posted by the online Wahid Institute, and an interview posted online by Eramuslim. Not only do the arguments contained in these pieces offer a glimpse into the ‘battle’ between opinions in the public realm in Indonesia, but they also portray the relationship between Muslims and Christians in the country. This paper will present the Muslim responses to the Pope's speech and the ‘reassertion’ of his original message conducted by two Catholic priest-intellectuals.     

社会公德角度的对错判断:公益传播中正负激励效果的调节变量

本文提出社会公德角度对于浪费的对错认知可能是正负面标语发挥作用的重要调节变量。本文首先基于某高校宿舍用水免费和用电付费的情况开展现场实验,在浪费"免费水"的现场实验中,负面标语比正面标语更有效地节约了用水量;浪费"付费电"的现场实验显示正面标语比负面标语效果更好。之后以食物消费假想情景实验,进一步验证了从"社会公德角度的对错判断"是正负激励效果的调节变量。