Reasoned action approach
An updated synthesis of reasoned-action and planned-behavior theory: intention drives behavior, fed by attitudes, norms, and perceived control.
What it means
The Reasoned Action Approach is Fishbein and Ajzen's integrative successor to the Theory of Reasoned Action and the Theory of Planned Behaviour. It models behavior as flowing from intention, which is determined by three components, each split in two: attitude (instrumental and experiential), perceived norm (injunctive and descriptive), and perceived behavioral control (capacity and autonomy). These in turn rest on underlying behavioral, normative, and control beliefs, and actual control plus skills moderate whether intention becomes action. The refinement matters because earlier versions blurred descriptive norms and self-efficacy; RAA separates them, sharpening prediction and intervention targeting. Its limitation is the persistent intention-behavior gap and its relatively thin treatment of habit, emotion, and environment. It matters as the most rigorously specified expectancy-value account of deliberate behavior and a template for belief-based message design.
Examples
To raise vaccination intent, RAA says target the specific beliefs behind attitude ('it's effective'), norms ('my doctor and peers do it'), and control ('I can get an appointment').
A cycle-to-work campaign that only shouts 'cycling is healthy' works on attitude alone; RAA says also tackle the belief that nobody else does it and the sense that there is nowhere to shower.
Staff intend to report near-misses, think it matters, and see colleagues doing it — but the form takes fifteen minutes, so it is actual control, not intention, where the behaviour dies.
First described in Martin Fishbein & Icek Ajzen (2010).