BIOSTATISTICS Qualitative variable Categorical DESCRIPTIVE Quantitative variable Continuous

BIOSTATISTICS Qualitative variable (Categorical) DESCRIPTIVE Quantitative variable (Continuous) ANALYTIC INFERENTIAL

BIOSTATISTICS Proportion, Ratio Qualitative v. DESCRIPTIVE Quantitative v. ANALYTIC INFERENTIAL Prevalence, incidence

BIOSTATISTICS Proportion, Ratio Qualitative v. DESCRIPTIVE Quantitative v. Prevalence, incidence Min. Max. Range Normal Distribution ANALYTIC Average Deviation INFERENTIAL

BIOSTATISTICS Proportion, Ratio Qualitative v. DESCRIPTIVE Min. Max. Range Quantitative v. ANALYTIC INFERENTIAL Prevalence, incidence Normal Distribution Mean Average Median Mode Deviation

BIOSTATISTICS Proportion, Ratio Qualitative v. DESCRIPTIVE Min. Max. Range Quantitative v. ANALYTIC INFERENTIAL Prevalence, incidence Normal Distribution Mean Average Median Mode Deviation Standard deviation Inter-quartile range

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. Statistical Significance ANALYTIC Strength of Association INFERENTIAL

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. QL vs QL Statistical Significance ANALYTIC QN vs QN Strength of Association INFERENTIAL QN vs QL

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. QL vs QL Stat. Significance ANALYTIC Chi-square Fisher’s Exact Mc. Nemar 2 QN vs QL QN vs QN Strength of Association INFERENTIAL

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. Chi-square Fisher’s Exact Stat. Significance ANALYTIC QL vs QL Mc. Nemar 2 QN vs QL T-test Anova QN vs QN Mann-Whitney Kruskal-Wallis Strength of Association INFERENTIAL Wilcoxon Friedman

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. Stat. Significance ANALYTIC Chi-square Fisher’s Exact QL vs QL Mc. Nemar 2 QN vs QL T-test Anova QN vs QN Mann-Whitney Kruskal-Wallis Strength of Association INFERENTIAL Wilcoxon Friedman Correlation

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. Stat. Significance ANALYTIC Relative Risk Strength of Association Odds Ratio INFERENTIAL

BIOSTATISTICS Qualitative v. DESCRIPTIVE Quantitative v. Stat. Significance ANALYTIC Relative Risk Strength of Association Odds Ratio INFERENTIAL 95% Confidence Interval