In my previous entry, I highlighted some of the most successful healthy diet campaigns delivered so far by social marketers. The question now becomes, what lessons can be learned from these case studies? What are the key components of a successful dietary health message?
Several commonalities quickly emerge from a casual examination of the campaigns. First and foremost, every campaign conveyed a very simple message. The taglines ‘1% or Less’ and ‘Go for 2&5’ are succinct, catchy and highly memorable - increased awareness is virtually guaranteed with this approach. Secondly and more importantly, the messages were specific and actionable - they instructed the audience to change a particular dietary habit, rather than vaguely saying, ‘eat better.’ This is consistent with previous studies that continually demonstrate that a persuasive social marketing message with an explicit conclusion or recommendation is more successful than one which does not [1].
Another identifiable theme is that of message exposure; specifically, disseminating a message for a substantial period of time. Each of the successful Australian fruit and veg campaigns ran for three whole years, and evaluation of the Victorian 2 Fruit and 5 Veg Every Day campaign even revealed that audience awareness levels closely paralleled the budget being spent on advertising at any one time [2]. And, although the relatively brief 1% or Less campaign was clearly effective at instigating short-term behavioural change, evaluations of a replication of the campaign done in Hawaii recommended booster sessions in order for the effect to last [3].
Case studies aside, according to studies done on the topic there are several other message tactics that social marketers should employ, including:
- · Segmenting the population and tailoring messages to each segment, rather than using a mass, ‘one size fits all’ approach [4], [5], [6]
- · Employing a positive, rather than a negative appeal [4]
- · Using a credible, and preferably also a likeable and attractive message source [1]
- · Communicating the campaign message on multiple levels/channels [7], [8]
Now let’s delve a little deeper. Marketing theory is central to all social marketing campaigns, and while its application in social marketing campaigns may not be obvious initially, you can rest assured that social marketers base every one of their decisions upon it.
Take the example of behavioural change theory. Being that the core objective of social marketing is to change a population’s behaviour, it stands to reason that social marketers will be familiar with the relevant theory in order to recognise and predict the potential influences upon them. Social Cognitive Theory, the Social Ecological Model, the Theory of Reasoned Action, the Theory of Planned Behaviour and the Health Belief Model are all examples of behavioural change theories that have shaped the implementation of past health campaigns [7]. The 1% or Less campaign, for example, was founded upon the Theory of Reasoned Action. This theory, developed by Ajzen (1985) focuses on the influence of intention on any potential change in behaviour, which is in turn influenced by personal attitude and social norms [9].
Even the most simple and unsophisticated elements of a social marketing campaign are in fact rooted in marketing theory. Take, for example, the basic commonalities I pointed out earlier, such as having a concise message with a call to action. These tactics are actually grounded in message effects theory, which focuses on how formats, structure, and features of messages influence audience perceptions about health and health behaviours [7].
To wrap up, we have a sound understanding of the elements that a social marketing campaign designed to improve Australians’ dietary health should have. However, the challenges faced by social marketers in this field are enormous in both size and complexity, and any benchmarks of success need to be realistic. Obesity is a multi-pronged issue requiring a multi-pronged solution, but social marketing will certainly have an important role to play as authorities strive for a fitter and healthier Australia.