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PH3300 Exam 2 Study Guide Questions with Correct Answers
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PH3300 Exam 2 Study Guide Questions with Correct Answers
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PH3300 Exam 2 Study Guide Questions with CorrectAnswers
Random Error Correct Answer-Results of fluctuations around a value
because of sampling variability
Selection Bias Correct Answer-Misleading associations arising from
procedures used to select subjects and from factors that influence
participation in the study
Misclassification Bias Correct Answer-Misleading associations arising
from systematic error in measurement of exposure or disease
Confounding Bias Correct Answer-Misleading associations arising when
the estimate of the effect of exposure of interest is distorted because it is
mixed with the effect of an extraneous factor
Effect Modification Correct Answer-A situation in which the
relationship between the exposure and the disease varies with the level
of a third variable
Internal Validity Correct Answer-Refers to the degree in which a study
has used methodologically sound procedures and the strength of the
process of making inferences about the subjects under study
External Validity Correct Answer-Refers to the strength of the process
of generalizing the findings of a study to the population from which the
, study sample was drawn, or even beyond that population to an external
population
Ecologic Fallacy Correct Answer-An erroneous inference about
associations at the aggregate level based upon associations overused at
the individual level; the associations at the aggregate level do not
necessarily truly represent the individual-level association
A case-control study is good for studying: Correct Answer-A. Multiple
Exposures associated with a single outcome
B. Rare Diseases
C. Multiple Health outcomes Associated with a single exposure
D. Rare Exposure
E. A and B---
F. C and D
G. None of the above
A cohort study us good for studying: Correct Answer-A. Multiple
Exposures associated with a single outcome
B. Rare Diseases
C. Multiple Health outcomes Associated with a single exposure
D. Rare Exposure
E. A and B
F. C and D ---
G. None of the above
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