The document defines nursing theories and models. A nursing theory is a set of concepts and relationships that explain or guide nursing actions, while a nursing model represents a way of thinking about nursing, clients, health, and environment. The goals of theoretical nursing models are to guide nursing practice, education, research, and care delivery. The Health Belief Model is then discussed as a psychological model for health behavior change. The model addresses the relationship between beliefs and behaviors. It helps understand factors influencing patients' perceptions, beliefs, and behaviors to plan effective care. The model involves perceptions of susceptibility, seriousness of illness, benefits and barriers to action, and cues to action that influence the likelihood of taking action.

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Nursing Theories
And Models
By
Mrs.Melba Sahaya Sweety.D
Child health nursing department
GIMSAR
Chinna Chadayan , Melba Sahaya Seety

2. Definition
Theory
Theory is defined as a set of interpretative assumption,
principles and proposition that help to explain or guide action.
- Young , Taylor and Repenning (2000)
Creative and rigorous structuring of ideas that project a
tentative purposeful and systematic view of
phenomena. - Chinn and Knammer(2003)
It is an organized , coherent set of concepts and their
relationship to each other that offers descriptions,
explanations and prediction about phenomena
– Parker (2001)
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3. Nursing models Definition
 A nursing model is a set of inter related
concepts that represents a particular way of
thinking about nursing , clients , health and
environment.
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4. GOALS OF THEORETICAL
NURSING MODELS
 Identify domain and goals of nursing
 Provide knowledge to improve nursing administration,
practice, education, and research
 Guide research to expand the knowledge base of nursing
 Identify research techniques and tools used to validate
nursing intervention
 Develop curriculum plan for nursing education
 Establish criteria for measuring quality of nursing care
education and research
 Guide development of nursing care delivery system
 Provide systematic structure and rationale for nursing
activities
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5. HEALTH BEIEF
MODEL
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6. HEALTH BELIEF MODEL
 The health belief model (HBM) is a psychological
health behavior change model was developed by
Rosenstoch’s (1974) and Bcker and Maiman’s (1975) It
addresses the Rlationship between a person’s belief
and behaviour.
 The health belief model (HBM)helps you to
understand factors influencing patients Prception,
beief, and behaviour to plan care that will most
effectively help patients maintain or restore health
and prevent illness.
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Individual
Perception
Modifying Factors Likelihood of
Action
* Demographic Variable(eg,
age, sex, race, ethicinity)
*Sociopsychological
variables (eg., Personality
social class, Peer and
reference group pressure
Perceived benefits of
Preventive Action
Minus
Perceived barriers of
Preventive action
Perceived threats
of disease X
*Perceived
Susceptibility to
disease X
*Perceived
seriousness to
disease X
Likelihood of
taking
recommended
preventive health
action
Cues to action
Mass media campaigns
Advice from others
Remainder postcard from physician and dentist
Illness of family members or friend
Newspaper or magazine articleChinna Chadayan , Melba Sahaya Seety

8.  The first component of this model involves an
individual’s perception of susceptibility to an illness.
For example, a patient needs to recognize the familial
link for coronary artery disease. After this link is
recognized , particularly hen on parent and two
siblings have died in their fourth decade from MI, the
patient may perceive the personal risk of heart disease.
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INDIVIDUAL PERCEPTION
Chinna Chadayan , Melba Sahaya Seety

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 The second component is an individual’s perception
of the seriousness of the illness. This prception is
influenced and modified by the modifying factors like
demographic and sociopsychological variables,
perceived threats of the illness & cues to action (e.g.,
mass media compaigns and advice from family ,
friends and mdical professionals).
MODIFYING FACTOR
Chinna Chadayan , Melba Sahaya Seety

10.  The Third component is the likelihood that a person
will take preventive action. This component results
from a person’s perception of benefits of and barriers
to taking action. Preventive actions include lifestyl
changes, increased adherence to medical therapies or a
search for medical advice or treatment.
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LIKELIHOOD OF ACTION
Chinna Chadayan , Melba Sahaya Seety

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