The effects of interpersonal communication style on task performance and well being (A Thesis submitted for the degree of Doctor of Philosophy)

This thesis is based around five studies examining the psychology of interpersonal communication applied to organizational settings. The studies are designed to examine the question of how the way that people in positions of power in organizations communicate with subordinates, affects various measures of health, well-being and productivity. It is impossible to study modern organisational communication without recognising the importance of electronic communication. The use of e-mail and other forms of text messaging is now ubiquitous in all areas of communication. The studies in this thesis include the use of e-mail as a medium of communication and examine some of the potential effects of electronic versus face-to-face and verbal communication. The findings of the studies support the basic hypothesis that: it is not what is said that matters but how it is said. The results showed that an unsupportive, formal, authoritarian style of verbal or written communication is likely to have a negative effect on health, well-being and productivity compared with a supportive, informal and egalitarian style. There are also indications that the effects of damaging communications may not be confined to the initial recipient of the message. Organizational communication does not take place in a vacuum. Any negative consequences are likely to be transmitted by the recipient, either back to the sender or on to other colleagues with implications for the wider organisational climate. These findings are based on communications that would not necessarily be immediately recognised as obviously offensive or bullying, or even uncivil. The effects of these relatively mild but unsupportive communications may have implications for the selection and training of managers. In the final section of the thesis there is a discussion of how examples of various electronically recorded messages might be used as training material