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Formulating hypothesis 
Maria Carmela L. Domocmat, MSN, RN 
Assistant Professor, Northern Luzon Adventist College
Hypothesis 
 is your prediction of the relationship you expect to find. 
A tentative prediction about the relationship b...
Hypothesis 
Translates a research question into a prediction of expected outcomes. 
research question identifies the var...
Example 
Does history of sexual abuse in childhood affect the development of irritable bowel syndrome in women? 
Hypothes...
What is the importance of hypothesis 
The use of hypotheses in quantitative studies tends to induce critical thinking and...
Characteristics 
1.A good hypothesis is researchable 
2.Should be stated in declarative form 
3.Should state, in definite ...
Hypothesis and theory 
Hypotheses sometimes follow directly from a theoretical framework 
Remember: the validity of a th...
Hypothesis and theory 
Ex: theory of reinforcement 
behavior that is positively reinforced (rewarded) tends to be learne...
Example 
Elderly patients who are praised (reinforced) by nursing personnel for self-feeding require less assistance in f...
How should the hypothesis be stated? 
Hypothesis can be stated as 
Directional or nondirectional 
Simple or complex 
R...
Simple hypothesis 
Statement of causal relationship one independent variable and one dependent variable. 
Complex hypot...
Directional hypothesis 
Specifies not only the existence but also the expected direction of the relationship between the...
Which of the following is directional and nondirectional hypothesis? 
1. Older patients are more at risk of experiencing a...
Research hypothesis 
also referred to as substantive, declarative, or scientific hypotheses 
Are statements of expected...
Research or Null hypothesis? 
“Patients’ age is unrelated to their risk of falling” 
“Older patients are just as likely ...
References 
Galero-tejero, E. (2011). A simplified approach to thesis and dissertation writing. Quezon City: National Boo...
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Formulating hypothesis in nursing research

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Formulating Hypothesis in Nursing Research

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Formulating hypothesis in nursing research

  1. 1. Formulating hypothesis Maria Carmela L. Domocmat, MSN, RN Assistant Professor, Northern Luzon Adventist College
  2. 2. Hypothesis  is your prediction of the relationship you expect to find. A tentative prediction about the relationship between two or more variables. 10/2/2014 Maria Carmela L. Domocmat, RN, MSN
  3. 3. Hypothesis Translates a research question into a prediction of expected outcomes. research question identifies the variables/concepts under investigation and asks how the concepts might be related hypothesis is the predicted answer.
  4. 4. Example Does history of sexual abuse in childhood affect the development of irritable bowel syndrome in women? Hypothesis Women who were sexually abused in childhood have a higher incidence of irritable bowel syndrome than women who were not.
  5. 5. What is the importance of hypothesis The use of hypotheses in quantitative studies tends to induce critical thinking and to facilitate understanding and interpretation of the data.
  6. 6. Characteristics 1.A good hypothesis is researchable 2.Should be stated in declarative form 3.Should state, in definite terms, the relationship between variables 4.Should be testable 5.Should follow the findings of previous studies 6.Should be related to a body of theory
  7. 7. Hypothesis and theory Hypotheses sometimes follow directly from a theoretical framework Remember: the validity of a theory is never examined directly. It is through hypothesis testing that the worth of a theory can be evaluated.
  8. 8. Hypothesis and theory Ex: theory of reinforcement behavior that is positively reinforced (rewarded) tends to be learned or repeated. The theory itself is too abstract to be put to an empirical test, but if the theory is valid, it should be possible to make predictions about certain kinds of behavior.
  9. 9. Example Elderly patients who are praised (reinforced) by nursing personnel for self-feeding require less assistance in feeding than patients who are not praised. Pediatric patients who are given a reward (e.g.,a balloon or permission to watch television)when they cooperate during nursing procedures tend to be more obliging during those procedures than nonrewarded peers.
  10. 10. How should the hypothesis be stated? Hypothesis can be stated as Directional or nondirectional Simple or complex Research or Null
  11. 11. Simple hypothesis Statement of causal relationship one independent variable and one dependent variable. Complex hypothesis Statement of causal or associative relationship between two or more independent variables and/or two or more dependent variables.
  12. 12. Directional hypothesis Specifies not only the existence but also the expected direction of the relationship between the dependent and the independent variables. Nondirectional hypothesis Does not specify the direction of the relationship between the dependent and the independent variables.
  13. 13. Which of the following is directional and nondirectional hypothesis? 1. Older patients are more at risk of experiencing a fall than younger patients. 2. There is a relationship between the age of a patient and the risk of falling. 3. The older the patient, the greater the risk that she or he will fall. 4. Older patients differ from younger ones with respect to their risk of falling. 5. Younger patients tend to be less at risk of a fall than older patients. 6. The risk of falling increases with the age of the patient.
  14. 14. Research hypothesis also referred to as substantive, declarative, or scientific hypotheses Are statements of expected relationships between variables. Null hypothesis or statistical hypotheses state that there is no relationship between the independent and dependent variables.
  15. 15. Research or Null hypothesis? “Patients’ age is unrelated to their risk of falling” “Older patients are just as likely as younger patients to fall.”
  16. 16. References Galero-tejero, E. (2011). A simplified approach to thesis and dissertation writing. Quezon City: National Bookstore. Talbot, L.A. (1995). Principles and practice of nursing research. USA: Mosby Year Book,Inc. Polit D.E. & Beck, CT. (2008). Nursing research: Generating and assessing evidence for nursing practice [8th ed]. Philadelphia: Wolster Kluwer, Lippincott Williams & Wilkins. Nieswiadomy, R.M. (2008). Foundations of Nursing Research [5th ed]. Singapore: Pearson Education South Asia Pte Ltd.

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