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Research Design
Elements of Research Design
•   Sampling Design
•   Observational Design
•   Statistical Design
•   Operational Design
Concepts
•   Purpose of study
•   Type of investigation
•   Extent of researcher interference
•   The study setting
•   Unit of analysis
•   Time horizon
Purpose of Study
•   Exploratory
•   Descriptive
•   Case study analysis
•   Hypothesis testing
Exploratory Research Design
• More of Discovery

Technique
• Survey of concerning literature
• Experience survey
• Analysis of insight stimulating examples
Ex: A manager wants to learn about work
  ethic in communist ruled state
Descriptive or Diagnostic Research
               Design


• description of state of affairs as it exists
• researcher has NO control over the variables
• reports what has happened or what is happening
Ex: Study in a class in terms of percentage of members in
terms of gender, age groupings, number of semester, job
status, educational level etc
Hypothesis testing Research
               design
• Usually explains the nature of certain
  relationship, or establish the differences among
  groups and independence of two or more factors

• Ex: if advertising is increased, then sales will
  also go up
• More men are whistleblowers
• Working the night shift is related to whether one
  is married or not
Type of investigation
         casual/correlational
Casual: is done to establish definitive cause
 effect relationship
Does smoking cause cancer?

Correlational :Mere identification of
  important factor associated
Are smoking and cancer related?
Extent of Researcher Interference
• Casual ( high)
• Correlational (low)

Nurses and Stress and emotional support
MINIMAL
MODERATE
EXCESSIVE
Unit of Analysis
•   Individuals
•   Dyads
•   Groups
•   Organizations
•   Cultures
Study setting
       contrived/ noncontrived
• Field study
• Field experiment
• Lab experiment
Time horizon
• Cross sectional
• longitudinal
Exercise
• Scenario A
  Ms. Joyce Lynn, the owner of a small business (boutique) has
  invited a consultant to tell her how her business is different from
  similar small business within 60 mile radius w.r.t. use of the modern
  computer technology, sales volume, profit margin, and staff training.
• Scenario B
  Mr. Paul Hodge owner of several restaurants on the east cost, is
  concerned about the wide differences in their profit margins. He
  would like to try some incentive plan for increasing the efficiency
  levels of the restaurant those lag behind. But before he actually
  does this, he would like to be assured that the idea would work. He
  asks a researcher to help him on this issue.
• Scenario C
  A manager is intrigued why some people derive joy fro work and get
  energized by it, while others find it troublesome and frustrating.
War on cancer
• Dr. Larry Norton of Sloan cancer care
  predicts that cancer treatment will underga
  major changes. Several drugs are being
  developed to battle cancer without
  harming healthy tissues. It is a question of
  discovering which of these drug does the
  job best.
Experiment
• A pro-life group wanted to test the effectiveness
  of an abortion commercial. Two random
  samples , each of 250 respondents were
  recruited in Atlanta. One group was shown the
  antiabortion commercial. Attitudes towards
  abortion was measured for respondents in both
  groups.
• Identify the dependent and independent
  variables
• What type of design was used?
• What are the potential threats to internal and
  external validity in this experiment?

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Research design

  • 2. Elements of Research Design • Sampling Design • Observational Design • Statistical Design • Operational Design
  • 3. Concepts • Purpose of study • Type of investigation • Extent of researcher interference • The study setting • Unit of analysis • Time horizon
  • 4. Purpose of Study • Exploratory • Descriptive • Case study analysis • Hypothesis testing
  • 5. Exploratory Research Design • More of Discovery Technique • Survey of concerning literature • Experience survey • Analysis of insight stimulating examples Ex: A manager wants to learn about work ethic in communist ruled state
  • 6. Descriptive or Diagnostic Research Design • description of state of affairs as it exists • researcher has NO control over the variables • reports what has happened or what is happening Ex: Study in a class in terms of percentage of members in terms of gender, age groupings, number of semester, job status, educational level etc
  • 7. Hypothesis testing Research design • Usually explains the nature of certain relationship, or establish the differences among groups and independence of two or more factors • Ex: if advertising is increased, then sales will also go up • More men are whistleblowers • Working the night shift is related to whether one is married or not
  • 8. Type of investigation casual/correlational Casual: is done to establish definitive cause effect relationship Does smoking cause cancer? Correlational :Mere identification of important factor associated Are smoking and cancer related?
  • 9. Extent of Researcher Interference • Casual ( high) • Correlational (low) Nurses and Stress and emotional support MINIMAL MODERATE EXCESSIVE
  • 10. Unit of Analysis • Individuals • Dyads • Groups • Organizations • Cultures
  • 11. Study setting contrived/ noncontrived • Field study • Field experiment • Lab experiment
  • 12. Time horizon • Cross sectional • longitudinal
  • 13. Exercise • Scenario A Ms. Joyce Lynn, the owner of a small business (boutique) has invited a consultant to tell her how her business is different from similar small business within 60 mile radius w.r.t. use of the modern computer technology, sales volume, profit margin, and staff training. • Scenario B Mr. Paul Hodge owner of several restaurants on the east cost, is concerned about the wide differences in their profit margins. He would like to try some incentive plan for increasing the efficiency levels of the restaurant those lag behind. But before he actually does this, he would like to be assured that the idea would work. He asks a researcher to help him on this issue. • Scenario C A manager is intrigued why some people derive joy fro work and get energized by it, while others find it troublesome and frustrating.
  • 14. War on cancer • Dr. Larry Norton of Sloan cancer care predicts that cancer treatment will underga major changes. Several drugs are being developed to battle cancer without harming healthy tissues. It is a question of discovering which of these drug does the job best.
  • 15.
  • 16. Experiment • A pro-life group wanted to test the effectiveness of an abortion commercial. Two random samples , each of 250 respondents were recruited in Atlanta. One group was shown the antiabortion commercial. Attitudes towards abortion was measured for respondents in both groups. • Identify the dependent and independent variables • What type of design was used? • What are the potential threats to internal and external validity in this experiment?