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📚 NURSING RESEARCH & STATISTICS

UNIT I: Research and Research Process

B.Sc Nursing - 7th Semester | RGUHS | INC 2020 Scheme

Exam Pattern: Theory = 75 marks (University) + 25 marks (Internal) = 100 total | Nursing Research = 55 marks, Statistics = 20 marks | Time = 3 hours

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SECTION 1: INTRODUCTION TO RESEARCH

1.1 What is Research?

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1.2 Definition of Nursing Research

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1.3 Why is Nursing Research Needed? (Need for Nursing Research)

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1.4 Areas of Nursing Research

AREAS OF NURSING RESEARCH
         |
    _____|_______
    |    |   |   |
  Practice Education Admin Research
    |
  - Patient care
  - Nursing procedures
  - Prevention
  - Rehabilitation
  - Community care

1. Nursing Practice - Clinical care, procedures, patient outcomes
2. Nursing Education - Teaching methods, curriculum, student learning
3. Nursing Administration/Management - Staffing, leadership, quality improvement
4. Community Health Nursing - Public health needs, health promotion
5. Nursing Theory - Development and testing of nursing theories
6. Health care delivery - Systems, policies, access to care

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SECTION 2: STEPS OF SCIENTIFIC METHOD

Steps of Scientific Method (7 Steps):

        [1] OBSERVATION
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        [2] PROBLEM IDENTIFICATION
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        [3] HYPOTHESIS FORMULATION
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        [4] DATA COLLECTION
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        [5] DATA ANALYSIS
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        [6] CONCLUSION / INTERPRETATION
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        [7] GENERALIZATION / PUBLICATION

• Scientific method = philosophical approach to knowledge generation
• Research process = practical step-by-step procedure

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SECTION 3: CHARACTERISTICS OF GOOD RESEARCH

Characteristics of Good Research (SOECO CRR):

Additional Characteristics:

• Valid - Measures what it intends to measure
• Reliable - Produces consistent results
• Generalizable - Findings can be applied to similar populations
• Ethical - Follows ethical principles; protects participants
• Relevant - Addresses significant and current problems

Mnemonic: "SOECR GER"

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SECTION 4: STEPS OF RESEARCH PROCESS (Overview)

Diagram: Steps of Research Process

PHASE 1: CONCEPTUAL PHASE
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   Step 1: Formulating the Research Problem
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   Step 2: Review of Related Literature
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   Step 3: Theoretical/Conceptual Framework
        |
   Step 4: Formulating Hypotheses
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PHASE 2: DESIGN & PLANNING PHASE
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   Step 5: Research Design
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   Step 6: Population & Sample
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   Step 7: Data Collection Methods & Tools
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   Step 8: Ethical Considerations
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   Step 9: Pilot Study
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PHASE 3: EMPIRICAL PHASE
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   Step 10: Data Collection
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PHASE 4: ANALYTICAL PHASE
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   Step 11: Data Analysis & Interpretation
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PHASE 5: DISSEMINATION PHASE
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   Step 12: Communication of Findings (Research Report)

Detailed Explanation of Each Step:

STEP 1: Formulating the Research Problem

• Identify the area of interest or problem in nursing practice
• Select a specific researchable problem
• State the problem clearly and precisely
• Problem statement = a declarative statement that identifies the variables and population
• Research question = an interrogative form of the problem

• Feasible - Can be conducted with available resources
• Interesting - Motivates the researcher
• Novel - Adds to existing knowledge
• Ethical - Can be conducted ethically
• Relevant - Important to nursing practice

STEP 2: Review of Related Literature (ROL)

• Systematic search of published and unpublished studies
• Sources: textbooks, journals, internet databases (CINAHL, COCHRANE, PubMed)
• Purpose: avoid duplication, build theoretical framework, refine problem

STEP 3: Theoretical/Conceptual Framework

• Provides a structure for the study
• Based on existing theories or concepts
• Guides the research design and interpretation

STEP 4: Formulating Hypotheses

• A hypothesis is a testable prediction about the relationship between variables
• Types: Null hypothesis (H₀), Research/Alternative hypothesis (H₁)
• Null hypothesis (H₀): States no relationship between variables
• Research hypothesis (H₁): States a relationship between variables

STEP 5: Research Design

• Blueprint/plan for the study
• Types: Descriptive, Exploratory, Experimental, Quasi-experimental
• Determines how data will be collected and analyzed

STEP 6: Population & Sample

• Population: All individuals who meet the study criteria
• Sample: A subset of the population selected for the study
• Sampling techniques: Probability and non-probability sampling

STEP 7: Data Collection Methods & Tools

• Methods: Interview, questionnaire, observation, records review
• Tools: Interview schedule, questionnaire, checklist, rating scale
• Tool must be valid and reliable

STEP 8: Ethical Considerations

• Informed consent from participants
• Anonymity and confidentiality
• Right to withdraw
• No harm to participants (beneficence, non-maleficence)
• Approval from Ethics Committee / IRB

STEP 9: Pilot Study

• A small-scale preliminary study
• Purpose: test the feasibility, identify problems with tools or methods
• Done before the main study

STEP 10: Data Collection

• Actual collection of data from the sample
• Follow the protocol strictly
• Document accurately

STEP 11: Data Analysis & Interpretation

• Organize, code, and tabulate data
• Apply statistical tests
• Interpret the results in relation to the hypothesis

STEP 12: Communication of Findings

• Write the research report
• Present findings verbally or in writing
• Publish in a journal or present at conferences

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SECTION 5: EVIDENCE BASED PRACTICE (EBP)

5.1 Definition of EBP

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5.2 Components / Pillars of EBP

                 EVIDENCE BASED PRACTICE
                          |
        __________________|___________________
        |                 |                  |
  Best Available    Clinical Expertise   Patient Values
    Evidence              |             & Preferences
        |           Knowledge, Skills,        |
  Research studies   Experience of       Patient's needs,
  Meta-analyses      the clinician       concerns, choices
  Systematic reviews

1. Best Available Research Evidence - Current, valid, relevant research
2. Clinical Expertise - Nurse's own knowledge, experience, and skills
3. Patient Values and Preferences - Individual patient's choice, culture, beliefs

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5.3 Purposes / Goals of EBP

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5.4 Steps of EBP Process (ACE Star Model / Iowa Model most commonly used)

STEP 1 --> ASK a clinical question (PICOT format)
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STEP 2 --> ACQUIRE the best evidence
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STEP 3 --> APPRAISE the evidence critically
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STEP 4 --> APPLY evidence in clinical practice
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STEP 5 --> ASSESS outcomes / EVALUATE

STEP 1: Ask a Clinical Question (PICOT Format)

STEP 2: Acquire the Best Evidence

• Search databases: PubMed, CINAHL, Cochrane Library, MEDLINE
• Use appropriate search terms / keywords
• Evidence hierarchy (strongest to weakest):

EVIDENCE HIERARCHY (Levels)
        Level I   --> Systematic Reviews & Meta-analyses (STRONGEST)
        Level II  --> Randomized Controlled Trials (RCTs)
        Level III --> Controlled trials without randomization
        Level IV  --> Case-control / Cohort studies
        Level V   --> Systematic review of qualitative studies
        Level VI  --> Single qualitative study / Descriptive study
        Level VII --> Expert Opinion (WEAKEST)

STEP 3: Appraise the Evidence (Critical Appraisal)

• Evaluate: Validity, Reliability, Applicability
• Check: Is the study well designed? Are the results accurate? Are findings applicable to my patient?
• Use tools: CASP (Critical Appraisal Skills Programme) checklist

STEP 4: Apply Evidence in Clinical Practice

• Integrate evidence with clinical expertise and patient values
• Develop or revise clinical guidelines and protocols
• Implement changes in practice

STEP 5: Assess Outcomes / Evaluate

• Monitor patient outcomes after implementation
• Evaluate effectiveness of the change
• Disseminate results to colleagues

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5.5 Barriers to EBP

Barriers Related to the Nurse (Individual Barriers):

Barriers Related to the Organization (Institutional Barriers):

Barriers Related to the Research Itself:

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SECTION 6: IMPORTANT DEFINITIONS (For Short Answer / MCQ)

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SECTION 7: COMPARISON TABLE (Exam Favorite)

Research Process vs. Scientific Method

Quantitative vs. Qualitative Research (Preview for Unit 4)

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SECTION 8: PREVIOUS YEAR EXAM-STYLE QUESTIONS & MODEL ANSWERS

Long Answer Questions (10-15 marks each):

Hint: Write definition (2 marks) + 5 needs with explanation (5 marks) + 3 areas (3 marks)

Hint: Draw the flowchart + explain all 12 steps in 3 phases

Hint: Definition + 3 components (pillars) diagram + 5 steps with PICOT + barriers table

Hint: Definition + 8-10 characteristics with one-line explanation each

Short Answer Questions (5 marks each):

• What is a hypothesis? What are the types? (5 marks)
• Define EBP. State its purposes. (5 marks)
• What are the steps of scientific method? (5 marks)
• List barriers to evidence based practice. (5 marks)
• What is a pilot study? State its purposes. (5 marks)

MCQ / Objective-Type Questions:

1. The "Gold Standard" of evidence in EBP is: (Systematic Review / Meta-analysis)
2. PICOT in EBP stands for: Population, Intervention, Comparison, Outcome, Time
3. The first step of the research process is: Formulating the research problem
4. A null hypothesis states: No relationship between variables
5. CINAHL stands for: Cumulative Index of Nursing and Allied Health Literature
6. The term EBP was popularized by: Sackett et al., 1996
7. Pilot study is done: Before the main study to test feasibility
8. Cochrane database contains mainly: Systematic Reviews
9. Reliability means: Consistency of measurement
10. The weakest level of evidence is: Expert Opinion

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SECTION 9: QUICK REVISION MNEMONICS

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SECTION 10: DIAGRAM BANK (Draw These in Exams)

Diagram 1: The Research Process Flowchart

+----------------------------------+
|       CONCEPTUAL PHASE           |
|  1. Formulate Research Problem   |
|  2. Review of Literature         |
|  3. Conceptual Framework         |
|  4. Formulate Hypothesis         |
+----------------------------------+
              |
+----------------------------------+
|     DESIGN & PLANNING PHASE      |
|  5. Research Design              |
|  6. Population & Sampling        |
|  7. Data Collection Tools        |
|  8. Ethical Considerations       |
|  9. Pilot Study                  |
+----------------------------------+
              |
+----------------------------------+
|        EMPIRICAL PHASE           |
| 10. Data Collection              |
+----------------------------------+
              |
+----------------------------------+
|       ANALYTICAL PHASE           |
| 11. Data Analysis & Interpretation|
+----------------------------------+
              |
+----------------------------------+
|     DISSEMINATION PHASE          |
| 12. Research Report / Publication|
+----------------------------------+

Diagram 2: Evidence Hierarchy (Pyramid)

        /\
       /  \
      / SR \      <-- Level I: Systematic Reviews & Meta-analyses
     /______\
    /        \
   /   RCT    \   <-- Level II: Randomized Controlled Trials
  /____________\
 /              \
/ Cohort/Case   \  <-- Level III & IV: Cohort, Case-control
\_______________/
 \             /
  \  Qual.    /   <-- Level V & VI: Qualitative / Descriptive
   \_________/
    \       /
     \ EO  /      <-- Level VII: Expert Opinion (Weakest)
      \___/

Diagram 3: Three Pillars of EBP

          BEST PATIENT CARE
               /\
              /  \
             /    \
            /  EBP \
           /________\
          /    |     \
         /     |      \
   Best       Clin.   Patient
  Research   Expertise  Values
  Evidence

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SECTION 11: IMPORTANT POINTS TO REMEMBER

Star Points for RGUHS Exams:

1. Nursing Research = 55 marks, Statistics = 20 marks in your University theory paper
2. The 5 phases of research process must be memorized along with the 12 steps
3. EBP is always asked - know definition, 3 components, 5 steps (PICOT), and barriers
4. Sackett et al. (1996) - key reference for EBP definition
5. CINAHL and COCHRANE are the key databases mentioned in your INC syllabus (Unit III also)
6. Meta-analysis and Systematic Review = strongest evidence (Level I)
7. Expert Opinion = weakest evidence (Level VII)
8. FINER criteria = for evaluating a good research problem
9. Null hypothesis (H₀) = no relationship; Alternative hypothesis (H₁) = relationship exists
10. Pilot study = done before the main study; tests feasibility and identifies problems with tools

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SECTION 12: CHAPTER SUMMARY TABLE

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Exam Strategy for Unit 1:

• For 10-mark questions: Always draw a diagram/flowchart + write in points (not paragraphs)
• For 5-mark questions: Give definition + 4-5 key points
• For MCQs: Focus on definitions, steps, levels of evidence, PICOT
• Always use bold headings and numbered points in your answer paper
• A diagram with labels always gets extra marks at RGUHS

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1. Introduction & Need for Nursing Research - Definition, 10 needs, areas of research
2. Steps of Scientific Method - 7 steps with a flowchart diagram
3. Characteristics of Good Research - SOECR GER mnemonic with 8-10 characteristics
4. Steps of Research Process - All 12 steps across 5 phases, with exam-ready flowchart
5. Evidence Based Practice (EBP) - Definition by Sackett, 3 pillars (diagram), 5 steps with PICOT format, Evidence Hierarchy pyramid, and all barriers

• Previous year type questions with answer hints
• RGUHS exam mark split (55 marks research, 20 marks stats)
• 10+ MCQs with answers
• Mnemonics for each subtopic
• Diagrams to draw in the exam hall
• Comparison tables
• Quick revision summary table