Breaking down the question
The phrase — Cybernetic Hierarchy of Control — is a technical concept from Talcott Parsons's theory of action, and the examiner expects an analytical note that explains what it means, how it fits within his systems framework, and why it matters. Treat it as an instruction to write an analytical note on this specific device in Parsonian sociology.
The concept describes how the four subsystems of action are ordered in a hierarchy according to information and energy, and how the higher, information-rich subsystems control the lower, energy-rich ones. To explain it convincingly you must first sketch the AGIL scheme, then introduce the cybernetic idea borrowed from Norbert Wiener, and finally show how Parsons uses it to argue that culture, though poor in energy, governs the direction of social life.
How to approach it
Open by placing the concept within Parsons's structural functionalism and his four functional prerequisites — adaptation, goal attainment, integration and latency. Identify the four action subsystems that fulfil them: the behavioural organism, the personality, the social system and the cultural system. Then explain the cybernetic ordering, in which subsystems high in information regulate those high in energy.
Make the information–energy contrast the centre of the note, and draw out its substantive implication: values and norms steer society. The place of this idea within Parsons's larger architecture is elaborated in our notes on Parsons's social system and pattern variables.
Model answer
The cybernetic hierarchy of control is a central device in Talcott Parsons's later theory of action, through which he explains how the various subsystems of human action are related and how order is maintained. Parsons borrowed the language of cybernetics — the science of communication and control developed by Norbert Wiener — to argue that systems are governed not by brute force but by information, much as a thermostat, low in energy, regulates a powerful heating system through the information it transmits.
To grasp the hierarchy one must begin with Parsons's functional scheme. He held that every system of action must meet four functional prerequisites, summarised in the AGIL formula: adaptation, securing resources from the environment; goal attainment, mobilising resources towards collective ends; integration, coordinating the parts and maintaining solidarity; and latency or pattern maintenance, sustaining the motivational and cultural patterns that underlie action. These four functions are performed, at the level of the general action system, by four subsystems. Adaptation is the province of the behavioural organism, goal attainment of the personality system, integration of the social system, and latency of the cultural system. Within the social system itself the same four functions are met respectively by the economy, the polity, the societal community and the fiduciary institutions of culture and socialisation.
The cybernetic hierarchy arranges these subsystems along a single dimension defined by two inversely related resources: information and energy. At the top stands the cultural system, which is highest in information but lowest in energy; below it the social system; then the personality system; and at the base the behavioural organism, which is highest in energy but lowest in information. Parsons's decisive claim is that subsystems rich in information control those rich in energy, while subsystems rich in energy condition those rich in information. Control flows downward from the information-rich cultural level; the energy and conditions that make action possible flow upward from the organism.
The substantive meaning of this arrangement is that culture — values, beliefs, symbols and norms — occupies the commanding position in the ordering of action. Though culture possesses little energy of its own, it supplies the information, the goals and the standards that direct how energy is used at the lower levels. Values are institutionalised into the norms of the social system, internalised into the motivations of personalities, and expressed through the behaving organism. In this way Parsons grounds social order in a shared cultural framework: the higher, controlling levels give purpose and direction, while the lower, conditioning levels supply the means and the energy.
The concept has real analytical value. It allows Parsons to integrate culture, society, personality and organism into a single coherent architecture, and it expresses in disciplined terms his conviction that shared values, not coercion or material interest alone, are the ultimate basis of social integration. It also clarifies how change may be initiated either from the top, through shifts in values, or from below, through changes in material conditions.
Yet the model attracts familiar criticism. Its assumption that culture and consensus govern social life understates conflict, power and material interest, which conflict theorists place at the centre of explanation. The scheme is highly abstract and difficult to test empirically, and its neat ordering can appear to justify the existing order as functionally necessary. Despite these objections, the cybernetic hierarchy of control remains a powerful statement of the primacy of values in the regulation of human action.
Examiner's perspective
Examiners reward candidates who can locate this concept precisely within Parsons's system rather than describing it in isolation. A high-scoring note sets out the AGIL scheme and the four action subsystems, explains the inverse relation of information and energy, and states clearly the governing principle that information-rich systems control energy-rich ones, culminating in the primacy of culture.
The common failing is to reproduce AGIL without explaining the cybernetic ordering that the question actually asks about, or to invoke cybernetics without connecting it to information and control. Naming Wiener's influence, using the thermostat analogy, and closing with a brief, fair critique concerning conflict and testability demonstrate the command of theory that secures full marks.