The Adaptation Model of Nursing was developed by Sister Callista Roy in 1976. After
working with Dorothy E. Johnson, Roy became convinced of the importance of describing
the nature of nursing as a service to society. This prompted her to begin developing
her model with the goal of nursing being to promote adaptation. She first began
organizing her theory of nursing as she developed course curriculum for nursing
students at Mount St. Mary's College. She introduced her ideas as a basis for
an integrated nursing curriculum.
The factors that influenced the development of the model included: family, education,
religious background, mentors, and clinical experience. Roy's model asks the questions:
Who is the focus of nursing care?
What is the target of nursing care?
When is nursing care indicated?
Roy explained that adaptation occurs when people respond positively to environmental
changes, and it is the process and outcome of individuals and groups who use conscious
awareness, self-reflection, and choice to create human and environmental integration.
The key concepts of Roy's Adaptation Model are made up of four components: person, health,
environment, and nursing.
According to Roy's model, a person is a bio-psycho-social being in constant interaction
with a changing environment. He or she uses innate and acquired mechanisms to adapt.
The model includes people as individuals, as well as in groups such as families,
organizations, and communities. This also includes society as a whole.
The Adaptation Model states that health is an inevitable dimension of a person's
life, and is represented by a health-illness continuum. Health is also described
as a state and process of being and becoming integrated and whole.
The environment has three components: focal, which is internal or external and
immediately confronts the person; contextual, which is all stimuli present in
the situation that all contribute to the effect of the focal stimulus; and residual,
whose effects in the current situation are unclear. All conditions, circumstances,
and influences surrounding and affecting the development and behavior of people and
groups with particular consideration of mutuality of person and earth resources,
including focal, contextual, and residual stimuli.
The model includes two subsystems, as well. The cognator subsystem is a major coping
process involving four cognitive-emotive channels: perceptual and information processing,
learning, judgment, and emotion. The regulator subsystem is a basic type of adaptive
process that responds automatically through neural, chemical, and endocrine coping channels.
The Adaptive Model makes ten explicit assumptions:
The person is a bio-psycho-social being.
The person is in constant interaction with a changing environment.
To cope with a changing world, a person uses coping mechanisms, both innate and acquired, which are biological, psychological, and social in origin.
Health and illness are inevitable dimensions of a person's life.
In order to respond positively to environmental changes, a person must adapt.
A person's adaptation is a function of the stimulus he is exposed to and his adaptation level.
The person's adaptation level is such that it comprises a zone indicating the range of stimulation that will lead to a positive response.
The person has four modes of adaptation: physiologic needs, self-concept, role function, and interdependence.
Nursing accepts the humanistic approach of valuing others' opinions and perspectives. Interpersonal relations are an integral part of nursing.
There is a dynamic objective for existence with the ultimate goal of achieving dignity and integrity.
There are also four implicit assumptions which state:
A person can be reduced to parts for study and care.
Nursing is based on causality.
A patient's values and opinions should be considered and respected.
A state of adaptation frees a person's energy to respond to other stimuli.
The goal of nursing is to promote adaptation in the four adaptive modes. Nurses
also promote adaptation for individuals and groups in the four adaptive modes,
thus contributing to health, quality of life, and dying with dignity by assessing
behaviors and factors that influence adaptive abilities and by intervening to
enhance environmental interactions. The Four Adaptive Modes of Roy's Adaptation
Model are physiologic needs, self-concept, role function, and interdependence.
The Adaptation Model includes a six-step nursing process.
The first level of assessment, which addresses the patient's behavior
The second level of assessment, which addresses the patient's stimuli
Diagnosis of the patient
Setting goals for the patient's health
Intervention to take actions in order to meet those goals
Evaluation of the result to determine if goals were met
Throughout the nursing process, the nurse and other health care professionals
should make adaptations to the nursing care plan based on the patient's progress toward health.