Statistics Flashcards

1
Q

What are the types of observational studies?

A
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2
Q

What is the only study that can calculate the incidence?

A

Screen Shot 2019-07-16 at 8.19.30 PM

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3
Q

what are the FDA stages of research?

A
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4
Q

Research levels of evidence?

A
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5
Q

Define Bias and Confounding

A
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6
Q

List some examples of before, during and after examples of Bias

A
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7
Q

what is detection bias?

A
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8
Q

what is assesor bias?

A
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9
Q

what is performance bias?

A
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10
Q

What is the Hawthore Effect?

A
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11
Q

What is a funnel plot?

A
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12
Q

Define INCIDENCE, PREVALENCE,RELATIVE RISK AND ODDS RATIO

A
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13
Q

Incidence and Prevalence Pool Analogy

A
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14
Q

What is the definition of INCIDENCE?

A
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15
Q

What is the definition of Prevalence?

A
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16
Q

Odds Ratio vs Relative Risk

A
17
Q

Can Relative risk be significant if CI crosses zero?

A

NO.

18
Q

How do ou differentiate between categorical and continous measurements?

A
19
Q

write the flowchart for statistical analysis based on study design

A
20
Q

what statisical analysis to use for categorical data for two or more small groups?

A
21
Q

what are the four variables for diagnostic performance?

A

Positive predictive value

Negative predictive value

sensitivity

Specificity

22
Q

Complete the table for Diagnostic Performance Measures:

specificitity

sensitivity

Positive Predictive Value

Negative Predictive Value

ie. SLAP tears on MRI

A
23
Q

Define Sensitivity:

A

ability to detect disease;

ability to detect true positives

24
Q

Define Specificity:

A

Ability to detect health:

ability to detect true Negatives

25
Q

Define Positive Predictive Value:

A

Probability that the person has the disease given a positive test result

Proportion of positive tests that are TRUE POSITIVES

26
Q

Define Negative Predictive Value

A

Probabiity that a person is healthy given a negative test result

Proportion of negative tests that are true negatives

27
Q

How do Type I and Type II errors relate to false positives and false negatives?

A