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Bioethics Lesson 6 Elements of Research

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Page 1: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Bioethics Lesson 6Elements of Research

Page 2: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Structures of Research

Types of Research Systematic Observation Controlled experiment Field study Models Simulations

Page 3: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Systematic Observation

Descriptive

No Independent Variable at beginning of investigation

Purpose to identify possible IV/DV relationships for further testing

Page 4: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Controlled experiment

Question

Hypothesis ( Independent Variable/Dependent Variable)

Isolation of Independent Variable (IV) Control other variables (CV)

Measurement of Dependent Variable (DV)

Reliability ( Can this experiment be reproduced?)

Validity ( Did the IV cause the change in the DV) Control Group

Page 5: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Field Study

Similar to Controlled experiment

In real world – more variables can interfere

May change the IV, or look for differences in IV already present in the environment

Page 6: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Models

Use of models when the real thing is “not possible” Expense Ethical concerns To many variables to control Time Magnitude (Global)

Problems with models Different from reality ( not as complex) Changes may not reflect reality

Page 7: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Simulations

Combination Models Controlled experiment

Page 8: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Analysis of an experiment

Read “Low glucose relates to greater aggression in married couples” Identify in the text:

Investigative Question Independent Variable Dependent Variable Controlled Variables Method for measuring Dependent Variable The authors’ conclusive statement Evidence the authors used to justify their conclusion

Page 9: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Evaluate the model

Describe the model used to determine aggressive impulses How is this model different from reality? Why might data collected from this model not

accurately reflect the authors’ conclusion?

Describe the model used to measure aggression How is this model different from reality? Why might data collected from this model not

accurately reflect the authors’ conclusion?

Page 10: Bioethics Lesson 6 Elements of Research. Structures of Research  Types of Research  Systematic Observation  Controlled experiment  Field study  Models

Skill Check

Develop a plan to investigate the following question (Class participation)

Would starting school at 9 am increase student test scores? Include :

Hypothesis ( Independent Variable/Dependent Variable) Isolation of Independent Variable (IV)

Control other variables (CV) Measurement of Dependent Variable (DV) Reliability ( Can this experiment be reproduced?) Validity ( Did the IV cause the change in the DV)