Quantitative And Statistical Research Methods :... May 2026

Rejecting a true null hypothesis (a "false positive").

Failing to reject a false null hypothesis (a "false negative"). Quantitative and statistical research methods :...

Compares means from the same group at different times (e.g., Pre-test vs. Post-test). Rejecting a true null hypothesis (a "false positive")

Uses random assignment and controlled variables to establish direct cause-and-effect. The Statistical Research Process Quantitative and statistical research methods :...

Compares the means of two independent groups (e.g., Men vs. Women).

The number of participants; larger samples generally increase the Statistical Power of a study.

Evaluates the association between two categorical variables.