Research Methods, Study Design, and Analytic Studies

1
Research Methods, Study Design, and Analytic
Studies

• Things we apply research designs to
• Mortality studies
• Morbidity studies
• Survey research
• Experimental design

2
Types of Epidemiological Studies

• Observational
• Experimental
• Community trials
• Clinical trials

3
Observational Studies

• No control over subjects, conditions and
  variables
• May be retrospective, cohort, cross-sectional,
  longitudinal or prospective

4
Terms associated with Observational Studies

• Subjects people or animals in the study
• Variables factors that may influence the
  outcomes
• Antecedent variable any factor that may
  influence the outcome before the activity occurs
• Quasi similar or almost, virtual

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Subjects and variables

• Cohort specifications for the group?
• Blind studies single, double, triple
• Antecedent variable things happen!
• Confounding variables examples?
• Dependent variable occur in both treatment and
  control groups
• Independent variable factor causing change in
  the experimental group

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Ethical Issues

• Human and animal research
• Use of human subjects informed consent
• Human subjects committees and policies
• Professional behavior