Examining the Influence of Self-Efficacy on Message-Framing Effects: Reducing Salt Consumption in the General Population

The Effect of Message Framing in Promoting the Mediterranean Diet: The Moderating Role of Eating Self-Efficacy

Although a Mediterranean diet (MeDiet) provides several psychophysical health benefits, research on how to effectively promote MeDiet adherence is still lacking. In the present study, we tested the effectiveness of a messaging intervention aimed at promoting the adherence to the Mediterranean diet. A total of 435 Italian participants responded to a questionnaire on their eating self-efficacy and adherence to the MeDiet at Time 1. Then, participants were randomly assigned to three different conditions: (a) gain messages focused on the positive outcomes of MeDiet adherence; (b) non-loss messages focused on the avoided negative outcomes associated with MeDiet adherence; (c) no messages (control). After the 2 week intervention, participants answered some questions regarding their perception of threat and distress, evaluation of the messages, and adherence to the MeDiet at Time 2. We also tested whether the messaging intervention influenced participants' MeDiet adherence at Time 2. Results confirmed that the messaging intervention enhanced the MeDiet adherence (F(2,432) = 4.61; p = 0.01, ηp² = 0.02), with no difference between exposure to gain or non-loss messages (95% LLCI = -0.32; 95% ULCI = 0.54). We then tested whether message framing effectiveness was influenced by eating self-efficacy, and results showed that gain messages were more persuasive for participants with low eating self-efficacy (effect size = 0.01; p for interaction = 0.03). Discussion suggests that tailoring messages according to receivers' psychological characteristics seems to be pivotal to enhance the persuasiveness of messages aimed at promoting the MeDiet adherence.

What Influences People's Tradeoff Decisions Between CO2 Emissions and Travel Time? An Experiment With Anchors and Normative Messages

One of the today's greatest challenges is to adjust our behavior so that we can avoid a major climate disaster. To do so, we must make sacrifices for the sake of the environment. The study reported here investigates how anchors (extrinsic motivational-free information) and normative messages (extrinsic motivational information) influence people's tradeoffs between travel time and carbon dioxide (CO2) emissions in the context of car travel and whether any interactions with environmental concern (an intrinsic motivational factor) can be observed. In this study, people received either a CO2, health or no normative message together with either a high anchor, a low anchor, or no anchor. People that received both a high anchor and a CO2 emission normative message were willing to travel for a longer time than those that only received a high anchor. If a low anchor was presented, no differences in willingness to travel for a longer time were found between the three different conditions of normative message groups, i.e., CO2 normative message, health normative message, or no normative message. People with higher concern for the environment were found to be willing to travel for a longer time than those with lower concern for the environment. Further, this effect was strongest when a high anchor was presented. These results suggest that anchors and normative messages are among the many factors that can influence people's tradeoffs between CO2 emission and travel time, and that various factors may have to be combined to increase their influence over pro-environmental behavior and decisions.

The Effect of Persuasive Messages in Promoting Home-Based Physical Activity During COVID-19 Pandemic

We tested the plausibility of a persuasion model to understand the effects of messages framed in terms of gain, non-loss, loss, and non-gain, and related to the physical, mental and social consequences of doing physical activity at home during the lockdown restrictions. 272 Italian participants responded to a questionnaire on their attitude and intention at Time 1, frequency of past behavior, and self-efficacy related to exercising at home. Then, participants were randomly assigned to four different message conditions: (a) gain messages focused on the positive outcomes associated with doing physical activity at home; (b) non-loss messages focused on the avoided negative outcomes associated with doing physical activity at home; (d) loss messages focused on the negative outcomes associated with not doing physical activity at home; (c) non-gain messages focused on the missed positive outcomes associated with not doing physical activity at home. After reading the messages, participants answered a series of questions regarding their perception of threat and fear, their evaluation of the messages, and their attitude and intention toward exercising at home at Time 2. Using multigroup structural equation modeling, we compared message conditions, and tested whether the effects of the messages on attitude and intention at Time 2 were mediated by message-induced threat, message-induced fear, and message evaluation. Results showed that the perception of the messages as not threatening was the key point to activate a positive evaluation of the recommendation. The highest persuasive effect was observed in the case of the non-loss frame, which did not threaten the receivers, triggered a moderated fear and, in turn, activated a positive evaluation of the recommendation, as well as higher attitude and intention to do home-based physical activity at Time 2. Overall, these results advance our comprehension of the effects of message framing on receivers' attitudes and intentions toward home-based physical activity.

A Public Health Messaging Campaign to Reduce Caloric Intake: Feedback From Expert Stakeholders

OBJECTIVE

To obtain expert feedback on a public health messaging campaign to reduce caloric intake in US adults.

DESIGN AND SETTING

In 2018, researchers conducted semistructured telephone interviews with US-based experts in obesity prevention, mental health, and health communications.

PARTICIPANTS

The research team invited 100 experts to participate using purposive and snowball sampling techniques. Of those invited, 60 completed interviews, among which 37 (62%) were obesity prevention experts, 12 (20%) were mental health experts, and 11 (18%) were health communications experts.

MAIN OUTCOME MEASURE

Expert feedback regarding a public health messaging campaign to reduce caloric intake.

ANALYSIS

Two researchers reviewed and coded all transcripts. The team identified major themes and summarized findings.

RESULTS

Most experts identified barriers to effective calorie reduction including social and environmental factors, lack of actionable strategies, and confusion regarding healthy eating messages. Expert suggestions for effective messaging included addressing eating patterns, emphasizing nutrient density, and dissemination through multiple channels and trusted sources. In general, mental health experts more frequently voiced concerns regarding eating disorders, and communications experts raised issues regarding the dissemination of campaigns.

CONCLUSIONS AND IMPLICATIONS

Professionals should identify and address barriers to delivering a calorie reduction campaign before implementation, using strategies that enhance delivery to ensure an effective campaign.

Different Frames to Reduce Red Meat Intake: The Moderating Role of Self-Efficacy

Previous research has shown that messages aimed at reducing red meat intake often do not have the expected effect. In the present study, we tested whether prefactual ("If… then") or factual messages focused on health or wellbeing concerns have different persuasive effects depending on the recipient's level of eating self-efficacy. Young adult participants (N = 247) completed a questionnaire measuring their eating self-efficacy and current red meat consumption. They were then presented with a prefactual or factual version of a message describing the possible negative impact of excessive red meat consumption on either health or wellbeing. After reading the message participants reported their involvement with the message and intention to eat red meat in the future. Results showed that prefactual wellbeing messages and factual health messages trigger participants' involvement and, in turn, reduce their intention to eat red meat more than the other message combinations. Eating self-efficacy moderates these effects, with factual health messages persuading people with high self-efficacy and prefactual wellbeing messages persuading also receivers with an average level of self-efficacy. Discussion focuses on which message frames can be more effective in promoting a reduction in red meat consumption in a wider population.

Exploring the Effects of Source Credibility and Message Framing on STI Screening Intentions: An Application of Prospect and Protection Motivation Theory

Roughly half of all new sexually transmitted infections (STI) occur in adolescent and college-aged populations. College students tend to underestimate their personal risks of contracting STIs. Consequently, many college students do not engage in protective behaviors that would reduce STI transmission rates. This study examined the effect of source credibility (high vs. low) and message framing (positive vs. negative) on college students' behavioral intentions to get screened for STIs via a 2 × 2 experiment (n = 207). Further, drawing on both Prospect Theory and Protection Motivation Theory, the study tested whether coping and threat appraisals mediated the effects of source credibility and message framing on behavioral intentions. Results reveal that both highly credible sources and negatively framed messages influenced behavioral intentions to screen for STIs. However, the interaction term of source credibility by message frame was not significant. Mediation models suggested that efficacy perceptions partially explained the effect of source credibility on behavioral intentions, but not for the effect of message framing. Perceptions of severity and susceptibility did not mediate the effect of either source credibility or message framing. Practical and theoretical implications of the results are discussed.

Does message framing matter for promoting the use of nutritional warnings in decision making?

Objective:

To evaluate the impact of message framing on attitudes towards messages aimed at promoting the use of nutritional warnings, behavioural intention and actual behaviour, evaluated through visual attention to nutritional warnings and the choice of a snack product during a real choice task.

Design:

Following a between-subjects design, participants were exposed to loss-framed nutrition messages, gain-framed nutrition messages or non-nutrition-related messages (control group). After evaluating the messages, participants were asked to select a snack product as a compensation for their participation. The experiment was conducted using an eye tracker.

Setting:

Montevideo (Uruguay).

Participants:

Convenience sample of 201 people (18–51 years old, 58 % female).

Results:

The average percentage of participants who fixated their gaze on the nutritional warnings during the choice task was slightly but significantly higher for participants who attended to nutrition messages (regardless of their framing) compared with the control group. Participants who attended to loss-framed messages fixated their gaze on the warnings for the longest period of time. In addition, the healthfulness of the snack choices was higher for participants exposed to nutrition-related messages compared with the control group.

Conclusions:

Results from the present work suggest that nutrition messages aimed at increasing awareness of nutritional warnings may increase consumers’ visual attention and encourage more heathful choices. The framing of the messages only had a minor effect on their efficacy.

Why Information Matters: Examining the Consequences of Suggesting That Pedophilia Is Immutable

In this study, the impact of suggesting that pedophilia is immutable on a man's specific self-efficacy for modifying his sexual interest in children was examined in 94 men with a sexual interest in children. The participants were selected from differing contexts and included non-forensic patients, forensic patients, and participants from the Internet. Randomly distributed to two conditions, the mutable condition group received the information that experts consider pedophilia to be modifiable, whereas the immutable condition group received the information that experts consider pedophilia to be stable. Afterward, the participants' levels of specific self-efficacy for modifying their sexual interest in children were assessed. Non-forensic participants in the mutable condition reported higher levels of specific self-efficacy than those in the immutable condition. No differences in specific self-efficacy were revealed for the forensic and Internet participants when comparing the mutable and immutable conditions. It would appear appropriate to avoid generalized and absolute statements about the (im)mutability of sexual interest in children, as scientific research on this topic remains insufficient. Furthermore, given the present results, such statements might have serious consequences for an individual's belief in being able to change his sexual interest in children.

Keep Faith in Yourself! A Pilot Study on the Relevance of Specific Self-Efficacy for Modifying Sexual Interest in Children Among Men With a Risk to Sexually Abuse Children

Among 26 pedophilic/hebephilic men, we investigated (1) the relationship between "specific self-efficacy for modifying a sexual interest in children" (SSIC) and actual sexual interest in children and (2) whether changes in SSIC are associated with changes in sexual interest in children. Results showed that the more clients believe they are able to influence their sexual interest in children, the less strong they perceive their sexual interest in children to be. Furthermore, an increase in SSIC is associated with a decrease in sexual interest in children. We suggest avoiding generalized statements about the immutability of sexual interest in children.

Vending Machines: A Narrative Review of Factors Influencing Items Purchased

Vending machines are a ubiquitous part of our food environments. Unfortunately, items found in vending machines tend to be processed foods and beverages high in salt, sugar, and/or fat. The purpose of this review is to describe intervention and case studies designed to promote healthier vending purchases by consumers and identify which manipulations are most effective. All studies analyzed were intervention or case studies that manipulated vending machines and analyzed sales or revenue data. This literature review is limited to studies conducted in the United States within the past 2 decades (ie, 1994 to 2015), regardless of study population or setting. Ten articles met these criteria based on a search conducted using PubMed. Study manipulations included price changes, increase in healthier items, changes to the advertisements wrapped around vending machines, and promotional signs such as a stoplight system to indicate healthfulness of items and to remind consumers to make healthy choices. Overall, seven studies had manipulations that resulted in statistically significant positive changes in purchasing behavior. Two studies used manipulations that did not influence consumer behavior, and one study was equivocal. Although there was no intervention pattern that ensured changes in purchasing, price reductions were most effective overall. Revenue from vending sales did not change substantially regardless of intervention, which will be important to foster initiation and sustainability of healthier vending. Future research should identify price changes that would balance healthier choices and revenue as well as better marketing to promote purchase of healthier items.

When do gain-framed health messages work better than fear appeals?

Past literature reviews of gain-framed versus loss-based health messages have been inconsistent and inconclusive. To resolve this and provide a clearer pattern, this review focuses on the individual or person-specific characteristics of target audiences. The results indicate that by answering the following four questions about a target audience, one can predict whether a gain-framed or a loss-based health message will be more effective. 1) Is there a low (versus high) level of involvement in the issue? 2) Is there a high (versus low) certainty of the outcome? 3) Is there a low (versus high) preference for risk? 4) Is there a heuristic (versus piecemeal) processing style? The profiling of audiences on these factors has two distinct benefits; it resolves many of the seeming inconsistencies in past positive-negative and gain-loss message research (such as fear appeals working better with experts than nonexperts) and it helps predict which type of message will be most effective with a given audience.

Health message framing effects on attitudes, intentions, and behavior: a meta-analytic review

BACKGROUND

Message framing has been an important focus in health communication research, yet prior meta-analyses found limited support for using framing to increase persuasiveness of health messages.

PURPOSE

This meta-analysis distinguished the outcomes used to assess the persuasive impact of framed messages (attitudes, intentions, or behavior).

METHODS

One hundred eighty-nine effect sizes were identified from 94 peer-reviewed, published studies which compared the persuasive impact of gain- and loss-framed messages.

RESULTS

Gain-framed messages were more likely than loss-framed messages to encourage prevention behaviors (r = 0.083, p = 0.002), particularly for skin cancer prevention, smoking cessation, and physical activity. No effect of framing was found when persuasion was assessed by attitudes/intentions or among studies encouraging detection.

CONCLUSIONS

Gain-framed messages appear to be more effective than loss-framed messages in promoting prevention behaviors. Research should examine the contexts in which loss-framed messages are most effective, and the processes that mediate the effects of framing on behavior.

Moderating the interaction between procedural justice and decision frame: the counterbalancing effect of personality traits

This study examined the framing effect of decision making in contexts in which the issue of social justice matters as well as the moderating effects of personality traits on the relationship between justice and framing effects. The authors manipulated procedural justice and outcome valence of the decision frame within two vignettes and measured two personality traits (self-efficacy and anxiety) of participants. The results from 363 participants showed that the moderating effects of personality traits counterbalanced the interaction between justice and framing, such that for individuals with high self-efficacy/low trait anxiety, justice effects were larger in negative framing than in positive framing; those with the opposite disposition exhibited the opposite pattern. These effects were interpreted in terms of an attribution process as the information processing strategy. The aforementioned findings suggest that the justice and decision theories can be developed to account for the moderating effects of personality traits. Some limitations of this study and the direction of future research are also discussed.

Improving diabetes self-management by mental contrasting

Diabetes patients often fail to adhere to self-management activities, such as losing weight by exercising and dieting. The present study tested the efficacy of a minimalist intervention consisting of only the self-regulation strategy 'mental contrasting' (Oettingen, G. (2000). Expectancy effects on behavior depend on self-regulatory thought. Social Cognition, 18, 101-129) in promoting these self-management activities among a clinical sample of type 2 diabetes patients (N = 64). Half of the participants were assigned to a positive indulging condition (fantasising about positive outcomes of losing weight) and the other half of the participants were assigned to a mental contrasting condition (fantasising about positive outcomes of losing weight and then contrasting these fantasies with obstacles in the present reality). Results showed that, one month later, participants in the mental contrasting condition had improved their diabetes self-management, and in particular their dieting behaviour, by a larger extent than participants who merely indulged in the positive future. It was concluded that although more elaborate interventions may yield stronger results, adding a mental contrasting exercise to their usual care may be a highly feasible, low-cost alternative to promote diabetes self-management.

Acceptability of the H1N1 vaccine among older adults: the interplay of message framing and perceived vaccine safety and efficacy

This study examines the relative effectiveness of using gain- versus loss-framed messages to promote H1N1 vaccination among older adults, focusing on the moderating roles of perceived vaccine safety and efficacy. An experiment was conducted with older adults recruited from senior centers in the state of Maryland. Results show that older adults who perceived low vaccine efficacy developed greater intentions to receive the vaccine when presented with a loss-framed message (versus a gain-framed message). For those who perceived high vaccine efficacy, message framing did not make a difference in postexposure intentions. Evidence regarding the interaction between message framing and perceived vaccine safety is limited. Theoretical and practical implications of the findings are discussed.

Preaching to the choir? The influence of personal relevance on the effects of gain- and loss-framed health-promoting messages

This article examines the moderating influence of personal relevance on the persuasive effects of gain- and loss-framed messages. We assessed current behaviour as a proxy for personal relevance, provided 169 participants with gain- and loss-framed messages advocating skin self-examination (SSE) and assessed intention to engage in SSE as the outcome measure. The results showed that loss-framed information was more persuasive than gain-framed information, but only for low-relevance participants. This suggests that loss-framed information might be mainly effective for recipients who need little persuading and, in fact, runs the risk of ‘preaching to the choir’.