1. Scenario
A study investigates whether a new teaching method improves students’ English speaking scores.
Students take a speaking test before and after a 6-week course ...
1. Scenario
A study investigates whether a new teaching method improves students’ English speaking scores.
Students take a speaking test before and after a 6-week course using the new method.
2. Groups Involved
Two sets of scores:
Pre-test scores
Post-test scores
→ These are two related measurements
3. Type of Participants
Data are collected from the same group of students
Each participant provides two scores (before and after)
4. Test Choice
Paired samples t-test
5. Reasoning
The two sets of data come from the same participants
The goal is to compare changes over time within one group
A paired samples t-test is appropriate because it measures the difference between two related conditions