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Philipp-Muller AZ, Wallace LE, Wegener DT. Where does moral conviction fit?: A factor analytic approach examining antecedents to attitude strength. JOURNAL OF EXPERIMENTAL SOCIAL PSYCHOLOGY 2020. [DOI: 10.1016/j.jesp.2019.103900] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Chang MW, Brown R, Wegener DT, Brill S, Schaffir J, Hu J. Chaos and psychosocial health in low-income overweight or obese women. Health Psychol 2019; 38:1159-1167. [PMID: 31580130 DOI: 10.1037/hea0000813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Using baseline data from a community-based weight-gain prevention intervention study, the authors examined whether coping self-efficacy moderated the associations between chaotic home environment and psychosocial health (perceived psychosocial stress, depressive symptoms, and positive and negative affect) in low-income women who are overweight or obese. METHOD Participants (N = 740; Mage = 28.06 ± 5.12) completed validated self-report measures of coping self-efficacy, chaotic home environment, perceived psychosocial stress, depressive symptoms, and positive and negative affect. Composite indicator structural equation modeling was used to test the moderation effects. Effect size was calculated using proportion of maximum possible (POMP) scores in the endogenous variables per unit change in the exogenous variable. RESULTS Coping self-efficacy significantly moderated the associations between chaotic home environment and depressive symptoms (p < .001, POMP = -0.62%) and between chaotic home environment and negative affect (p < .01, POMP = -0.36%). However, coping self-efficacy did not moderate the association between chaotic home environment and perceived psychosocial stress or positive affect. CONCLUSIONS This study suggests that coping self-efficacy could explain some individual differences in responses to home chaos or to interventions aimed at alleviating depressive symptoms and negative affect in low-income women who are overweight or obese and who experience chaos at home. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Wallace LE, Wegener DT, Petty RE. Influences of source bias that differ from source untrustworthiness: When flip-flopping is more and less surprising. J Pers Soc Psychol 2019; 118:603-616. [PMID: 31750695 DOI: 10.1037/pspa0000181] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Discussions of the difference between biased and fake news were prevalent after the 2016 United States Presidential election. However, within social psychology, and especially the psychology of persuasion, perceptions of source bias have been largely overlooked or conflated with untrustworthiness. In the current work, we sought to demonstrate that bias and untrustworthiness can have differing effects. One such situation is when persuasive sources originally take one position but switch to a different position (flip-flopping). We find that people expect biased versus objective sources to consistently maintain their position. Conversely, people do not have these expectations for untrustworthy versus trustworthy sources. When sources unexpectedly switch positions, people can infer that they must have switched because of strong evidence in support of the new position. As a result, taking an unexpected position can lead a source to be more persuasive. This package includes a final study with a preregistered analysis plan that uses latent variable modeling, as well as an integrative data analysis across all data we have to test these hypotheses. Ultimately, this work suggests that bias and untrustworthiness can have differing indirect influences on persuasion when sources switch positions, highlighting the need to conceptually separate bias and untrustworthiness and examine their individual effects. These persuasive effects function as an illustrative example of differing influences of bias and untrustworthiness, but we expect this distinction to have theoretical implications across domains of social psychology and practical applications for media producers and consumers. (PsycINFO Database Record (c) 2020 APA, all rights reserved).
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Chang MW, Robbins LB, Ling J, Brown R, Wegener DT. Mediators affecting the association between a lifestyle behavior intervention and stress in low-income overweight or obese mothers of young children. J Health Psychol 2019; 26:1625-1636. [PMID: 31749377 DOI: 10.1177/1359105319887780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Using data from a community-based lifestyle behavioral intervention study, this secondary data analysis investigated whether emotional coping, coping self-efficacy, and autonomous motivation mediated the association between the intervention and perceived stress in low-income overweight or obese mothers of young children. Results showed that coping self-efficacy significantly mediated the association between the intervention and perceived stress. However, emotional coping and autonomous motivation did not significantly mediate the association between intervention and perceived stress. Interventions may be more effective in helping the target audience reduce stress if they incorporate practical skills that can increase a sense of coping self-efficacy.
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Wallace LE, Patton KM, Luttrell A, Sawicki V, Fabrigar LR, Teeny J, MacDonald TK, Petty RE, Wegener DT. Perceived Knowledge Moderates the Relation Between Subjective Ambivalence and the “Impact” of Attitudes: An Attitude Strength Perspective. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2019; 46:709-722. [DOI: 10.1177/0146167219873492] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Previous work has reliably demonstrated that when people experience more subjective ambivalence about an attitude object, their attitudes have less impact on strength-related outcomes such as attitude-related thinking, judging, or behaving. However, previous research has not considered whether the amount of perceived knowledge a person has about the topic might moderate these effects. Across eight studies on different topics using a variety of outcome measures, the current research demonstrates that perceived knowledge can moderate the relation between ambivalence and the impact of attitudes on related thinking, judging, and behaving. Although the typical Attitude × Ambivalence effect emerged when participants had relatively high perceived knowledge, this interaction did not emerge when participants were lower in perceived knowledge. This work provides a more nuanced view of the effects of subjective ambivalence on attitude impact and highlights the importance of understanding the combined impact of attitude strength antecedents.
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Chien YW, Hsiao CC, Wegener DT, Petty RE. Setting aside mood-biased thoughts and judgements: theory-based bias correction / Apartar las opiniones y los pensamientos sesgados por el estado de ánimo: la corrección del sesgo basada en teoría. INTERNATIONAL JOURNAL OF SOCIAL PSYCHOLOGY 2019. [DOI: 10.1080/02134748.2019.1639345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Silva PP, Garcia-Marques T, Wegener DT. Rebound effects in persuasion: considering potential ironic effects of suppression and correction / Efectos rebote en la persuasión: una consideración de los posibles efectos irónicos de la supresión y la corrección. INTERNATIONAL JOURNAL OF SOCIAL PSYCHOLOGY 2019. [DOI: 10.1080/02134748.2019.1649962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wallace LE, Wegener DT, Petty RE. When Sources Honestly Provide Their Biased Opinion: Bias as a Distinct Source Perception With Independent Effects on Credibility and Persuasion. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2019; 46:439-453. [DOI: 10.1177/0146167219858654] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Anecdotally, attributions that others are biased pervade many domains. Yet, research examining the effects of perceptions of bias is sparse, possibly due to some prior researchers conflating bias with untrustworthiness. We sought to demonstrate that perceptions of bias and untrustworthiness are separable and have independent effects. The current work examines these differences in the persuasion domain, but this distinction has implications for other domains as well. Two experiments clarify the conceptual distinction between bias (skewed perception) and untrustworthiness (dishonesty) and three studies demonstrate that source bias can have a negative effect on persuasion and source credibility beyond any parallel effects of untrustworthiness, lack of expertise, and dislikability. The current work suggests that bias is an independent, but understudied source characteristic.
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Chang MW, Schaffir J, Brown R, Wegener DT. Mediation by self-efficacy in the relation between social support and dietary intake in low-income postpartum women who were overweight or obese. Appetite 2019; 140:248-254. [PMID: 31141706 DOI: 10.1016/j.appet.2019.05.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/23/2019] [Accepted: 05/23/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE Using baseline data from a prevention of weight gain intervention study, we investigated whether self-efficacy mediated the relations between social support and dietary intake of saturated fat, fast food, fruit and vegetable in low-income postpartum women who were overweight or obese. METHODS Participants (N = 740) completed validated measures of self-reported social support, self-efficacy, and dietary intake of saturated fat, fast food, fruit and vegetable. We performed composite indicator structural equation modeling to test the mediation effect. Effect size was calculated using proportion of maximum possible (POMP) scores in the endogenous variables (e.g., fast food) per unit change in the exogenous variable. RESULTS When including the influence of self-efficacy as a mediator, social support indirectly influenced dietary intake of saturated fat (p ≤ 0.001, POMP = -0.77%), fast food (p ≤ 0.001, POMP = -0.28%), and fruit and vegetable (p ≤ 0.001, POMP = 0.53%). Thus, these data are consistent with self-efficacy mediating the relations between social support and dietary intake of saturated fat, fast food, fruit and vegetable in low-income postpartum women who were overweight or obese. CONCLUSION Dietary interventions aiming to decrease saturated fat and fast food intake and increase fruit and vegetable intake for the target population may consider including practical skills for increasing social support and self-efficacy that can be implemented in daily life.
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Chang MW, Tan A, Schaffir J, Wegener DT. Sleep and weight loss in low-income overweight or obese postpartum women. BMC OBESITY 2019; 6:12. [PMID: 30984405 PMCID: PMC6442411 DOI: 10.1186/s40608-019-0236-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 02/21/2019] [Indexed: 12/27/2022]
Abstract
Background We conducted secondary data analyses to examine the associations between sleep duration, sleep quality, sleep disturbance and ≥ 5% of weight loss in low-income overweight or obese postpartum women enrolled in a community-based lifestyle behavior intervention study aimed at prevention of weight gain. Methods Participants were recruited from the Special Supplemental Nutrition Program for Women, Infants, and Children in Michigan. The Pittsburgh Sleep Quality Index was used to assess sleep duration, sleep quality, and sleep disturbance. All participants were assessed and weighed at baseline (T1, 569 participants), 4-month (T2, 367 participants), and 7-month from T1 (T3, 332 participants). Descriptive statistics and mixed-effects regression analysis were performed. Results Participants reported longer sleep duration (p = 0.048), better sleep quality (p = 0.003) and less sleep disturbance (p < 0.001) over time. There were no significant mean body weight changes at T2 and T3. However, a significantly higher proportion of women lost ≥5% of body weight at T3 (23.1%) than T2 (12.5%, p = 0.001). Sleep duration, quality, and disturbance were not significantly associated with ≥5% of weight loss. Conclusion Improvements in sleep duration, sleep quality and sleep disturbance over time were not associated with ≥5% of weight loss in low-income overweight or obese postpartum women. Trial registration Clinical Trials NCT01839708; retrospectively registered February 28, 2013.
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Hashim MJ, Kannan KN, Wegener DT. Central Role of Moral Obligations in Determining Intentions to Engage in Digital Piracy. J MANAGE INFORM SYST 2018. [DOI: 10.1080/07421222.2018.1481670] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sawicki V, Wegener DT. Metacognitive Reflection as a Moderator of Attitude Strength Versus Attitude Bolstering: Implications for Attitude Similarity and Attraction. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2018; 44:638-652. [PMID: 29320929 DOI: 10.1177/0146167217744196] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
"Strong" attitudes often have greater impact than "weak" attitudes. However, emerging research suggests that weak (uncertain) attitudes can substantially influence thinking or behavior. We propose metacognitive reflection as a moderator between traditional strength patterns and these emerging attitude bolstering patterns. Across six studies, research participants encountered a target person who agreed or disagreed with participants' attitudes. When focused on evaluating the target, attitudes predicted target evaluations better when the attitude was held with certainty (Study 1A), or after certainty had been primed (Studies 2A and 3; strength effects). However, when engaged in attitudinal social comparison (metacognitive reflection), attitudes better predicted target evaluation when the attitudes were held with doubt (Study 1B), or after doubt had been primed (Studies 2B and 3; bolstering effects). Expected change in certainty served as a mediator of attitude effects in metacognitive reflection but not target-focus conditions when doubt had been primed (Study 4).
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Fabrigar LR, Wegener DT. Further considerations on conceptualizing and evaluating the replication of research results. JOURNAL OF EXPERIMENTAL SOCIAL PSYCHOLOGY 2017. [DOI: 10.1016/j.jesp.2016.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fabrigar LR, Wegener DT. Conceptualizing and evaluating the replication of research results. JOURNAL OF EXPERIMENTAL SOCIAL PSYCHOLOGY 2016. [DOI: 10.1016/j.jesp.2015.07.009] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Petty RE, Wegener DT. Matching Versus Mismatching Attitude Functions: Implications for Scrutiny of Persuasive Messages. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2016. [DOI: 10.1177/0146167298243001] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Two studies were conducted to examine the hypothesis that matching the content of a persuasive message to the functional basis of people's attitudes enhances message scrutiny. In Study 1, high and low self-monitors were exposed to a message that matched or mismatched the functional basis of their attitudes (i.e., image appealfor high self-monitors and quality appealfor low self-monitors) and that -contained either strong or weak arguments. Attitudes were more strongly affected by message strength when the message arguments matched rather than mismatched thefunctional basis of the attitude. In Study 2, this outcome was especially characteristic of individuals who typically do not enjoy thinking (those low in need for cognition). These studies show that matching arguments to the functional basis of an attitude is not invariably beneficialfor persuasion but can enhance or reduce attitude change (compared to mismatched arguments) depending on the cogency of the matched information.
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Petty RE, Tormala ZL, Hawkins C, Wegener DT. Motivation to Think and Order Effects in Persuasion: The Moderating Role of Chunking. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2016. [DOI: 10.1177/0146167201273007] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Two studies examined the hypothesis that chunking—defined as the degree to which information is grouped into explicitly labeled categories of distinct valence—moderates the impact of motivation to think on order effects in persuasion. Studies 1 and 2 examined motivation to think in terms of perceived personal relevance and need for cognition, respectively. In both studies, participants read arguments for and against a hypothetical exam policy. These arguments were presented in varying orders and in either a chunked or an unchunked format. Results were consistent with the predictions: Under chunked conditions, participants who were highly motivated to think were more susceptible to primacy effects than were those low in motivation to think. Under unchunked conditions, this pattern was reversed—those highly motivated to think were more susceptible to recency effects than those low in motivation to think.
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Fabrigar LR, Priester JR, Petty RE, Wegener DT. The Impact of Attitude Accessibility on Elaboration of Persuasive Messages. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2016. [DOI: 10.1177/0146167298244001] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Two experiments were conducted to examine the impact of attitude accessibility on elaboration of persuasive appeals. In Experiment 1, the accessibility of attitudes toward nuclear power was measured using response latencies. Participants were then presented with a persuasive message that contained either strong or weak arguments against the use of nuclear power. Argument quality had a greater impact on persuasion when attitudes were high in accessibility than when they were low in accessibility. In Experiment 2, the accessibility of attitudes toward vegetarianism was experimentally manipulated by varying the number of times participants expressed their attitudes toward vegetarianism. Participants then read a pro-vegetarianism persuasive message that contained either strong or weak arguments. Again, argument quality had a greater impact on persuasion when accessibility was high than when it was low. Taken together, both experiments suggest that increased message topic attitude accessibility leads to enhanced elaboration of persuasive messages on those topics.
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Petty RE, Fabrigar LR, Wegener DT, Priester JR. Understanding Data When Interactions Are Present or Hypothesized. Psychol Sci 2016. [DOI: 10.1111/j.1467-9280.1996.tb00368.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The traditional approach to interpreting data when an interaction is present is to interpret cell means as reflecting a difference between differences An alternative is to interpret any main effects and separately interpret interaction residuals Interpretation of interaction residuals can sometimes lead to nonsensical conclusions Thus in deciding between the approaches, researchers should consider (a) the conceptual nature of the variables involved, (b) relevant theories and (c) the additional data that might be necessary to distinguish among competing plausible representations Issues have also arisen regarding how to best test a hypothesis that involves interaction variance Some researchers have argued that the use of a focused contrast designed to test a specific ordering of cell means (e g, a linear contrast) is often the best strategy We note potential problems with the use of such contrasts and discourage researchers from blanket use of contrasts that combine main effect and interaction variance
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Blankenship KL, Wegener DT, Murray RA. Values, Inter-Attitudinal Structure, and Attitude Change. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2015; 41:1739-50. [DOI: 10.1177/0146167215609063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Accessibility is one of the most basic structural properties of an attitude and an important factor to consider in attitude strength. Despite its importance, relatively little work has examined the role of attitude accessibility in an inter-attitudinal context, particularly as it relates to the strength of related attitudes in the network. The present research examines accessibility as a property of one attitude (toward an abstract goal or end-state, that is, a value) that might influence the strength of a different but related attitude (toward a social policy conceptually related to the value). In Study 1, a highly accessible evaluative component of a value increased resistance to change of attitudes and behavioral intentions toward a social policy related to that value. Similarly, a manipulation of value accessibility (Studies 2 and 3) led to increased resistance of attitudes and behavioral intentions toward a social policy related to that value. Implications for the role of accessibility in inter-attitudinal strength are discussed.
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Wilder JR, Wegener DT, David MZ, Macal C, Daum R, Lauderdale DS. A national survey of skin infections, care behaviors and MRSA knowledge in the United States. PLoS One 2014; 9:e104277. [PMID: 25137061 PMCID: PMC4138108 DOI: 10.1371/journal.pone.0104277] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 07/10/2014] [Indexed: 11/30/2022] Open
Abstract
A nationally representative sample of approximately 2000 individuals was surveyed to assess SSTI infections over their lifetime and then prospectively over six-months. Knowledge of MRSA, future likelihood to self-treat a SSTI and self-care behaviors was also queried. Chi square tests, linear and multinomial regression were used for analysis. About 50% of those with a reported history of a SSTI typical of MRSA had sought medical treatment. MRSA knowledge was low: 28% of respondents could describe MRSA. Use of protective self-care behaviors that may reduce transmission, such as covering a lesion, differed with knowledge of MRSA and socio-demographics. Those reporting a history of a MRSA-like SSTI were more likely to respond that they would self-treat than those without such a history (OR 2.05 95% CI 1.40, 3.01; p<0.001). Since half of respondents reported not seeking care for past lesions, incidence determined from clinical encounters would greatly underestimate true incidence. MRSA knowledge was not associated with seeking medical care, but was associated with self-care practices that may decrease transmission.
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Chien YW, Wegener DT, Petty RE, Hsiao CC. The Flexible Correction Model: Bias Correction Guided by Naïve Theories of Bias. SOCIAL AND PERSONALITY PSYCHOLOGY COMPASS 2014. [DOI: 10.1111/spc3.12105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Macal CM, North MJ, Collier N, Dukic VM, Wegener DT, David MZ, Daum RS, Schumm P, Evans JA, Wilder JR, Miller LG, Eells SJ, Lauderdale DS. Modeling the transmission of community-associated methicillin-resistant Staphylococcus aureus: a dynamic agent-based simulation. J Transl Med 2014; 12:124. [PMID: 24886400 PMCID: PMC4049803 DOI: 10.1186/1479-5876-12-124] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 04/08/2014] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Methicillin-resistant Staphylococcus aureus (MRSA) has been a deadly pathogen in healthcare settings since the 1960s, but MRSA epidemiology changed since 1990 with new genetically distinct strain types circulating among previously healthy people outside healthcare settings. Community-associated (CA) MRSA strains primarily cause skin and soft tissue infections, but may also cause life-threatening invasive infections. First seen in Australia and the U.S., it is a growing problem around the world. The U.S. has had the most widespread CA-MRSA epidemic, with strain type USA300 causing the great majority of infections. Individuals with either asymptomatic colonization or infection may transmit CA-MRSA to others, largely by skin-to-skin contact. Control measures have focused on hospital transmission. Limited public health education has focused on care for skin infections. METHODS We developed a fine-grained agent-based model for Chicago to identify where to target interventions to reduce CA-MRSA transmission. An agent-based model allows us to represent heterogeneity in population behavior, locations and contact patterns that are highly relevant for CA-MRSA transmission and control. Drawing on nationally representative survey data, the model represents variation in sociodemographics, locations, behaviors, and physical contact patterns. Transmission probabilities are based on a comprehensive literature review. RESULTS Over multiple 10-year runs with one-hour ticks, our model generates temporal and geographic trends in CA-MRSA incidence similar to Chicago from 2001 to 2010. On average, a majority of transmission events occurred in households, and colonized rather than infected agents were the source of the great majority (over 95%) of transmission events. The key findings are that infected people are not the primary source of spread. Rather, the far greater number of colonized individuals must be targeted to reduce transmission. CONCLUSIONS Our findings suggest that current paradigms in MRSA control in the United States cannot be very effective in reducing the incidence of CA-MRSA infections. Furthermore, the control measures that have focused on hospitals are unlikely to have much population-wide impact on CA-MRSA rates. New strategies need to be developed, as the incidence of CA-MRSA is likely to continue to grow around the world.
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Clark JK, Wegener DT, Sawicki V, Petty RE, Briñol P. Evaluating the message or the messenger? Implications for self-validation in persuasion. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2013; 39:1571-84. [PMID: 23969619 DOI: 10.1177/0146167213499238] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Characteristics of persuasive message sources have been extensively studied. However, little attention has been paid to situations when people are motivated to form an evaluation of the communicator rather than the communicated issue. We postulated that these different foci can affect how a source validates message-related cognitions. Participants focused on the source (Studies 1 and 2) or the issue (Study 2) while reading weak or strong message arguments. Later, the communicator was described as low or high in credibility. When focused on the source, highly motivated participants were more confident and their attitudes were more reflective of thoughts when argument quality matched (e.g., weak arguments-low credibility) rather than mismatched (e.g., weak arguments-high credibility) source credibility. Conversely, when participants were focused on the issue, self-validation was greater when credibility was high rather than low-regardless of argument quality. Implications of these findings for the study and practice of persuasion are discussed.
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Sawicki V, Wegener DT, Clark JK, Fabrigar LR, Smith SM, Durso GRO. Feeling conflicted and seeking information: when ambivalence enhances and diminishes selective exposure to attitude-consistent information. PERSONALITY AND SOCIAL PSYCHOLOGY BULLETIN 2013; 39:735-47. [PMID: 23482502 DOI: 10.1177/0146167213481388] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To date, little research has examined the impact of attitudinal ambivalence on attitude-congruent selective exposure. Past research would suggest that strong/univalent rather than weak/ambivalent attitudes should be more predictive of proattitudinal information seeking. Although ambivalent attitude structure might weaken the attitude's effect on seeking proattitudinal information, we believe that conflicted attitudes might also motivate attitude-congruent selective exposure because proattitudinal information should be effective in reducing ambivalence. Two studies provide evidence that the effects of ambivalence on information choices depend on amount of issue knowledge. That is, ambivalence motivates attitude-consistent exposure when issue knowledge is relatively low because less familiar information is perceived to be effective at reducing ambivalence. Conversely, when knowledge is relatively high, more unambivalent (univalent) attitudes predicted attitude-consistent information seeking.
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Clark JK, Wegener DT. Message Position, Information Processing, and Persuasion. ADVANCES IN EXPERIMENTAL SOCIAL PSYCHOLOGY 2013. [DOI: 10.1016/b978-0-12-407236-7.00004-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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