Epidemiology Flashcards
National Clinical Trials (NCT) number
- unique ID # given by clinicaltrials.gov once research protocol is submitted prior to study initiation
Positive vs Negative Kurtosis
Positive - more cluster around mean
Negative - less cluster around mean
Type 1 error
NOT ACCEPTING null hypothesis when it was actually true, and you should have accepted it
Type 2 error
Accepting the null hypothesis when it is actually FALSE, and you should not have accepted it
p-value
probability of making a Type 1 error if the Null Hypothesis is rejected
Nominal, 2 groups, Independent
Pearsons Chi squared test
Fishers Exact
Nominal, 2 groups, Related
McNemar
Nominal 3+ groups, Independent
chi squared test of independence
Fishers Exact (less than 5 people)
Nominal 3+ groups Related
Cochran
Nominal Survival
Log Rank
Nominal Correlation
Contingency Coefficient
Nominal Prediction/Association (Regression)
Logistics Regression
Ordinal 2 groups Independent
Mann Whitney
Ordinal 2 groups Related
Wilcoxon Sign Rank
Ordinal 3+ groups Independent
Kruskal Wallis
Ordinal 3+ groups Related
Friedman
Ordinal Post-Hoc tests
Student Newman Keul
Dunnett
Dunn
Nominal Post-Hoc test
Bonferroni Correction
adjusts p value for # of comparisons being made
Ordinal Survival
Cox-Proportional Hazard
Survival Tests
compares proportion of events over time, or time-to events, between groups
Correlation tests
provides a quantitative measure of the strength and direction of a relationship between variables
Regression tests
predict the likelihood of some event
Ordinal Correlation
Spearman Correlation
Ordinal Regression
Multinominal Logistics Regression