Communication Networks in the Diffusion of an Innovation in an Organization1

Research on decision-making processes and the diffusion of innovations in organizations has been focused on the influence of formal organizational structures. Since the successful implementation of most innovations requires the cooperation of employees, it is important to investigate how employees' knowledge, opinions, and individual decisions concerning an innovation are influenced by other employees. The present study investigates how information acquisition and adoption decisions of employees are influenced by the quantity and strength of their informal communication ties in the organization, and how strong this influence is in comparison with influence from formal communication sources. Results indicate that formal communication sources contributed more to the process of information diffusion, whereas informal communication sources (especially the employees' strong ties), were more influential on attitudes and adoption intentions.     

Workplace mobbing and bystanders' helping behaviour towards victims: The role of gender,perceived responsibility and anticipated stigma by association

We examined victims' perceived responsibility and bystanders' anticipated risk of being victimized themselves when others associate them with the victim (stigma by association, SBA) as possible antecedents of bystanders' helping behaviour towards a victim of workplace mobbing, and explored the effects of gender. Guided by the attribution model of social conduct (Weiner, 2006), a 2 × 2 vignette experiment was conducted. Participants were Dutch regional government employees (N = 161). Path analyses generally supported the hypotheses, but showed different results for women and men. In the strong (Vs. weak) responsibility condition, women reported less sympathy and more anger and men only more anger, which resulted in lower helping intention. Additionally, for men the results showed an unexpected direct positive effect of responsibility on helping intention. Furthermore, in the strong SBA condition, women and men reported more fear and men, unexpectedly, more anger. Consequently, helping intention decreased. The findings on gender are discussed in the context of social role theory, gender and emotion. Our findings suggest that to prevent and tackle mobbing, organizations and professionals should be aware of the attributional and emotional processes and gender differences in bystanders' helping behaviour.     

The Relationship Between Perceived In‐Group Variability,Number of Contacts,and Identification1

In a field setting, we explored how the perceived variability of in‐groups is related to in‐group contacts and identification. Results from a mail questionnaire showed that up to 20 in‐group contacts, the number of in‐group contacts was positively related to in‐group identification, and both variables appeared to be negatively related to perceived in‐group variability. It is concluded that these results are more consistent with a social identity explanation of variability perceptions than with the familiarity explanation found for out‐group variability estimates.     

The Strength of Weak and Strong Communication Ties in a Community Information Program1

A study is described that investigated the influence of a target group's communication network on information diffusion and the impact of a community-based information program. It was expected that the process of information diffusion would be related to the quantity of ties. The diffusion of information brought into a clique by external sources that did not belong to any of the target group's cliques was expected to be related to the existing number of weak ties, whereas the diffusion of specific information sent out by internal sources within a clique was expected to be primarily related to the number of strong ties. Furthermore it was expected that the impact of the program would be related to the perceived quality of network ties. Results support the hypotheses and confirm Granovetter's “strength-of-weak-ties” hypothesis. In addition, existing direct ties between the internal sources of information and the target group appeared to have played a crucial role in the process of information diffusion.     

Predictors of Antisocial and Prosocial Behaviour of Bystanders in Workplace Mobbing

When will bystanders of workplace mobbing show antisocial or prosocial behaviour toward the victim? Results of a 2 × 2 vignette study (N = 177) suggest that high perceived responsibility of the victim for the onset of the mobbing evokes anger and consequently antisocial bystander behaviour, whereas low perceived responsibility generates sympathy and consequently prosocial bystander behaviour. The results further indicate that bystanders will show more antisocial behaviour and less prosocial behaviour toward the victim when they anticipate stigma by association. The implications of these results for interventions seeking to influence bystanders' behaviour in the context of workplace mobbing and for further research on this bystander behaviour are discussed. Copyright © 2015 John Wiley & Sons, Ltd.     

Mass-Media Information Campaigns and Knowledge-Gap Effects1

The knowledge-gap hypothesis of Tichenor, Donohue, and Olien (1970) states that people from the higher socioeconomic segments of society acquire information at a faster rate than people from the lower socioeconomic segments. The consequence is a growing knowledge gap between the high and low segments. The present study investigates some potential causes for this knowledge-gap phenomenon by means of data sets from evaluation studies of 3 mass-media information campaigns. The observed differences in knowledge between low and highly educated respondents could partly be explained by differences in the attention paid to the campaigns but not by differences in information processing.     

Workplace mobbing: How the victim’s coping behavior influences bystander responses

Victims of workplace mobbing show diverse coping behavior. We investigated the impact of this behavior on bystander cognitions, emotions, and helping toward the victim, integrating coping literature with attribution theory. Adult part-time university students (N = 161) working at various organizations participated in a study with a 3(Coping: approach/avoidance/neutral) × 2(Gender Victim: male/female) × 2(Gender Bystander: male/female) design. Victims showing approach (vs. avoidance) coping were considered to be more self-reliant and less responsible for the continuation of the mobbing, and they elicited less anger. Continuation responsibility and self-reliance mediated the relationship between the victim’s coping behavior and bystanders’ helping intentions. Female (vs. male) participants reported more sympathy for the victim and greater willingness to help, and female (vs. male) victims elicited less anger. Theoretical and practical implications of the findings are discussed.