The state of knowledge regarding delivering behavior change techniques via short text messages is already quite advanced: A response to "Can behavior change techniques be delivered via short text messages?"

ABSTRACT

Dogru et al. recent study reported developing text messages that attempted to capture each of 93 behavior change techniques (BCTs) in a standardized taxonomy. They found that a panel of experts identified the majority of the messages developed as having good fidelity to the intended BCTs. While this work has clear merit, we do not believe it accurately reflects the large body of existing research in this area. A process of producing text messages to address BCTs that yielded high fidelity has previously been reported. Furthermore, this work showed that messages developed for one behavior can be modified to address another behavior with similarly good fidelity. Importantly, these messages have been shown to successfully change target constructs in an experimental study and are being used in a randomized trial that has recently completed recruitment of over 1000 people with Type 2 diabetes.

Dogru et al. developed a list of text messages to deliver behavior change techniques (BCTs). BCTs are methods for changing behavior and a standardized taxonomy has described 93 such BCTs. The authors found that of 93 messages addressing these 93 BCTs, 66 of the messages were agreed by experts to deliver the intended BCT. According to the authors, the next step would be to analyze the effectiveness of the messages. This work has clear merit, however, the suggested process does not accurately represent the work that has already been done in this area. A body of work has developed text messages to target adherence to medication in people with Type 2 diabetes. These messages were rated by experts as delivering the intended BCTs and were rated as acceptable by people with Type 2 diabetes. Furthermore, these messages have been successfully modified to address other behaviors such as diet and physical activity with experts rating these messages as delivering the intended BCTs. These messages have been found to change constructs such as intention when delivered in an experimental study and are now being used in a randomized controlled trial that has completed recruitment of over 1000 people with Type 2 diabetes.