Table 6: Mean scores of pre and post responses of knowledge and confidence about apprenticeships
Paired t-test explanation
A paired t-test is a statistical method used to compare the means of two related groups to determine if there is a significant difference between them. It is commonly used when measuring the same subjects before and after an intervention( e. g., pre- and post-workshop scores).
Key Components of a Paired t-test Result:
• Mean( M): The average score before and after the intervention.
• t-value: A measure of how large the difference is relative to the variation in the data.
• p-value: The probability that the observed difference occurred by chance( typically, p < 0.05 is considered significant). Page 17 of 35