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Communication and
Research Skills (C&RS)
Syllabus
                of
       Research Methodology
5.   Introduction to Research and
     Research Design
6.   Measurement and Scaling, Data
     Source and Data Collection
7.   Data Analysis and Presentation
8.   Technical Writing
Research methodology
 Research may be define as a documented
  prose work.
 Documented prose work means organized
  analysis of the subject based on borrowed
  material with suitable acknowledgement
  and consultation in the main body of the
  paper.
Meaning Research
   Research       has    been
    defined     by      various
    authors in different ways.
    It always begins with a
    question or a problem. Its
    purpose is to find answer
    to question through the
    application of systematic
    and scientific methods.
    Thus, research is the
    systematic        approach
    towards          purposeful
    investigation.
Objective of Research
   To obtain familiarity of a
    phenomenon.
   To determine the
    association or
    independence of an
    activity.
   To determine the
    characteristics of an
    individual or a group of
    activities and the
    frequency of its
    occurrence.
Features of good research
                study
   Objectivity
   Control
   Generalisability
   Free from personal
    bias
   Systematic
   Reproducible
Types of research studies
   Fundamental
    research
   Applied research
   Descriptive research
   Historical research
   Exploratory research
   Experimental
    research
   Ex-post-facto
    research
   Case study approach
Role of research in
         business/industry
 Marketing research
 Govt. policies and economic system
 Solving various operation and planning
  problems in business
 Social relationship
Research process

1.   Defining the research problem and reviewing
     the literature
2.   Formulation of hypothesis
3.   Research design
4.   Collecting data
5.   Analyzing data and testing hypothesis
6.   Preparation of report and preliminary analysis
7.   Interpreting and reporting the findings
Research process
  Defining the research problem:-
Formulation of problem:
How problem can be formulate
1. Statement of the problem in a
   general way
2. Understanding the nature of the
   problem
3. Surveying the available literature
4. Developing the idea through
   discussion.
5. Rephrasing the research problem
   into a working proposition.
Formulation of Hypothesis
   Concept of hypothesis:
    – A hypothesis is a proposition-a tentative assumption
       which a researcher wants to test for its logical or
       empirical consequences.
    – Hypothesis are generally concerned with the causes
       of a certain phenomenon or a realtion ship between
       two or more variables under investigation.
    – HYPOTHESIS TESTING:-
    1. formulate a hypothesis.
    2. Set up a suitable significance level. (type-I &II error)
    3. Choose a test criterion.
    4. Compute the statistics.
    5. Make decision.
Hypothesis testing
Type of errors
 Type I error: an error made in rejecting the
  null hypothesis, when in fact it is true.
 Tyep II error: an error made in accepting
  the null hypothesis when in fact it is
  untrue.
Research Design
 A research design is the arrangement of
  condition for collection and analysis of
  data in a manner that aims to combine
  relevance to the research purpose with
  economy in procedure.
 Research design is in fact the conceptual
  structure within the research is conducted.
 Research design as a “Blue print for the
  collection, measurement and analysis of
  data”
Types of research design
 Exploratory research studies
 Descriptive research studies
 Hypothesis testing studies
Exploratory research studies
 “to explore a subject”
 Features:
  –   The small sample size.
  –   Non probability sampling design.
  –   Data requirements are vague.
  –   Objective is general rather than specific.
  –   No recommendation are made.
Descriptive studies
 Features:
  –   Study describes the phenomena.
  –   Collected data are related to demographic or
      behavioural respondents.
  –   For specific objective
  –   Use large sample
  –   Probability sampling design
  –   Recommendation are provided.
Casual research studies
 Used to provide a stronger     basis for the
  existence.
 Create relation between variables.
 Control influence of variables.
 If not possible to control variable, its call
  confounded variables.
Difference between research
                   design
RESEARCH DESIGN        EXPLORATORY         DESCRIPTIVE


Sampling design        Non probability     Probability


Statistical design     No pre planned      Pre-planned


Observational design   Unstructured        Structured


Operational design     No fixed decision   Advance decision


Overall design         Flexible            Rigid
What is experimentation?
 Experiments are studies involving
  intervention by the researcher beyond,
  measurement.
 There is one (IV) and (DV) in a casual
  relationship.
 Correlation of IV and DV, the time order of
  occurrence of variables must be
  considered. They may occur almost
  simultaneously.
What is experimentation?
 Controls are important, further precaution
 are needed so that the results achieved
 reflect the influence of the IV alone on the
 DV
Formal types of experiments
Conducting Experiment
1.   Select relevant variables
2.   Specify the level of treatment
3.   Control the experimental design
4.   Choose the experimental design
5.   Select and assign the subjects
6.   Pilot-test, revise and test
7.   Analyze the data.
Thank you

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Chapter1

  • 2. Syllabus of Research Methodology 5. Introduction to Research and Research Design 6. Measurement and Scaling, Data Source and Data Collection 7. Data Analysis and Presentation 8. Technical Writing
  • 3. Research methodology  Research may be define as a documented prose work.  Documented prose work means organized analysis of the subject based on borrowed material with suitable acknowledgement and consultation in the main body of the paper.
  • 4. Meaning Research  Research has been defined by various authors in different ways. It always begins with a question or a problem. Its purpose is to find answer to question through the application of systematic and scientific methods. Thus, research is the systematic approach towards purposeful investigation.
  • 5. Objective of Research  To obtain familiarity of a phenomenon.  To determine the association or independence of an activity.  To determine the characteristics of an individual or a group of activities and the frequency of its occurrence.
  • 6. Features of good research study  Objectivity  Control  Generalisability  Free from personal bias  Systematic  Reproducible
  • 7. Types of research studies  Fundamental research  Applied research  Descriptive research  Historical research  Exploratory research  Experimental research  Ex-post-facto research  Case study approach
  • 8. Role of research in business/industry  Marketing research  Govt. policies and economic system  Solving various operation and planning problems in business  Social relationship
  • 9. Research process 1. Defining the research problem and reviewing the literature 2. Formulation of hypothesis 3. Research design 4. Collecting data 5. Analyzing data and testing hypothesis 6. Preparation of report and preliminary analysis 7. Interpreting and reporting the findings
  • 10. Research process  Defining the research problem:- Formulation of problem: How problem can be formulate 1. Statement of the problem in a general way 2. Understanding the nature of the problem 3. Surveying the available literature 4. Developing the idea through discussion. 5. Rephrasing the research problem into a working proposition.
  • 11. Formulation of Hypothesis  Concept of hypothesis: – A hypothesis is a proposition-a tentative assumption which a researcher wants to test for its logical or empirical consequences. – Hypothesis are generally concerned with the causes of a certain phenomenon or a realtion ship between two or more variables under investigation. – HYPOTHESIS TESTING:- 1. formulate a hypothesis. 2. Set up a suitable significance level. (type-I &II error) 3. Choose a test criterion. 4. Compute the statistics. 5. Make decision.
  • 13. Type of errors  Type I error: an error made in rejecting the null hypothesis, when in fact it is true.  Tyep II error: an error made in accepting the null hypothesis when in fact it is untrue.
  • 14.
  • 15. Research Design  A research design is the arrangement of condition for collection and analysis of data in a manner that aims to combine relevance to the research purpose with economy in procedure.  Research design is in fact the conceptual structure within the research is conducted.  Research design as a “Blue print for the collection, measurement and analysis of data”
  • 16. Types of research design  Exploratory research studies  Descriptive research studies  Hypothesis testing studies
  • 17. Exploratory research studies  “to explore a subject”  Features: – The small sample size. – Non probability sampling design. – Data requirements are vague. – Objective is general rather than specific. – No recommendation are made.
  • 18. Descriptive studies  Features: – Study describes the phenomena. – Collected data are related to demographic or behavioural respondents. – For specific objective – Use large sample – Probability sampling design – Recommendation are provided.
  • 19. Casual research studies  Used to provide a stronger basis for the existence.  Create relation between variables.  Control influence of variables.  If not possible to control variable, its call confounded variables.
  • 20. Difference between research design RESEARCH DESIGN EXPLORATORY DESCRIPTIVE Sampling design Non probability Probability Statistical design No pre planned Pre-planned Observational design Unstructured Structured Operational design No fixed decision Advance decision Overall design Flexible Rigid
  • 21. What is experimentation?  Experiments are studies involving intervention by the researcher beyond, measurement.  There is one (IV) and (DV) in a casual relationship.  Correlation of IV and DV, the time order of occurrence of variables must be considered. They may occur almost simultaneously.
  • 22. What is experimentation?  Controls are important, further precaution are needed so that the results achieved reflect the influence of the IV alone on the DV
  • 23. Formal types of experiments
  • 24. Conducting Experiment 1. Select relevant variables 2. Specify the level of treatment 3. Control the experimental design 4. Choose the experimental design 5. Select and assign the subjects 6. Pilot-test, revise and test 7. Analyze the data.