Table 2: Statistical test based on dependent variables.

Type of Dependent Variable

Example

Type of Analysis

Statistical Test(s) Used

Continuous Dependent Variable

Measuring a Blood pressure

Comparing 2 groups

Using t-test

Continuous Dependent Variable

Measuring a Heart rate

Comparing more than 2 groups

Using ANOVA Test

Continuous Dependent Variable

Measuring a Weight gain

Association dependent Variable with another variable

Using Pearson or Spearman correlation test

Categorical (Nominal) Dependent Variable

(Yes/No) Disease status

Comparing proportions among groups

Using the Chi-square test, Fisher’s exact test

Binary Dependent Variable

Survival status

Association dependent variable with predictors

Using a Logistic regression test

Ordinal Dependent Variable

Measuring a Pain severity

Comparing ordered categories variable

Using Ordinal regression, the Wilcoxon rank-sum test

Count Dependent Variable

Measuring a No. infections

Frameworking count outcomes

Using Poisson regression test