bioethics lesson 6 elements of research. structures of research types of research systematic...
TRANSCRIPT
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Bioethics Lesson 6Elements of Research
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Structures of Research
Types of Research Systematic Observation Controlled experiment Field study Models Simulations
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Systematic Observation
Descriptive
No Independent Variable at beginning of investigation
Purpose to identify possible IV/DV relationships for further testing
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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
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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
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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
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Simulations
Combination Models Controlled experiment
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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
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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?
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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)