The Audience-Channel-Message-Evaluation (ACME) framework provides integrated guidance for effective health communication campaign design, implementation, and evaluation. The ACME framework suggests four principles to follow when developing a health communication campaign: 1) audience segmentation, 2) channel selection, 3) theory-based message design, and 4) outcome evaluation. The four principles are interconnected in guiding every decision point over the course of health campaign development. For instance, audience segmentation implies channel selection, message design, and evaluation plans. Message design additionally determines channel selection and vice versa. Evaluation is carried out through the whole campaign development and implementation rather than a one-time, separate assessment.
Audience (Who?) The first principle to consider when developing an effective campaign is to identify the target audience. The procedure is also known as
audience segmentation, which refers to a step narrowing down a homogenous audience to a heterogenous audience that shares similar patterns of beliefs, behaviors, and values. Segmentation strategies could be as broad as focusing on demographic or geographic characteristics such as gender and location. Yet it could also be as specific as dividing groups based on shared attitudes toward a given object (e.g., positive attitudes toward a promoted health behavior) or similar behaviors (e.g., performing healthy eating behaviors). For instance, guided by the Risk Perception Attitude (RPA) framework, people can be segmented into four attitudinal groups based on their
risk perception and
self-efficacy, including responsive group (high risk, high efficacy), avoidance group (high risk, low efficacy), proactive group (low risk, high efficacy), and indifference group (low risk, low efficacy). Putting into a health promotion context aiming for increasing young adults' use of
genetic tests, young adults can be further segmented into four groups based on their genetic risk and efficacy beliefs. Those who have a high-risk perception toward genetic diseases and believe in engaging in self-protective health behaviors can protect their genes belong to the group of activists (i.e., responsive group in RPA). Those who have a high-risk perception toward genetic diseases but do not believe they have the ability to protect their genes by engaging in health behaviors belong to the threatened group (i.e., avoidance group in RPA). Those who believe in the positive impact of health behaviors on genes but do not feel at risk of genetic diseases belong to the group of controllers (i.e., proactive group in RPA). Lastly, those who are not aware of the risk of genetic diseases nor the benefit of health behaviors belong to the group of skeptics (i.e., indifferent group in RPA). Depending on how the audience is segmented, campaign designers can tailor more specific messages and deliver the messages via the most appropriate channel to the targeted group.
Channel (How?) The principle of channel selection determines the effectiveness of campaign implementation. With wide choices of channel selection, multi-channel dissemination can be more desirable and effective than single channel. The length of delivery time on the chosen channels is another decision needed to be considered in this process. Messages thus can be designed to elicit individuals' perceptions of threat and efficacy. Putting into an
AIDS education context, messages can embody a threat by emphasizing the severity of HIV infection, such as showing graphic photographs of late-stage AIDS victims and vividly describing the health consequences. To elicit perceived efficacy, messages can highlight the effectiveness of using condoms to reduce the risk of HIV transmission and the ease of using condoms.
Evaluation (Did it work?) The principle of evaluation in the ACME framework emphasizes conducting a set of assessments, rather than a one-time, separate process. It refers to three aspects of evaluation: 1) formative evaluation, 2) process evaluation, and 3) outcome evaluation. Formative evaluation focuses on evaluating the initial campaign design, examining whether audience segmentation, channel selection, and message design are clear and interconnected. Process evaluation concerns the effectiveness of campaign implementation, ensuring the campaign's reach and exposure to the intended audiences. Outcome evaluation examines the success of a campaign in achieving intended effects while ruling out unintended effects. == See also ==