Testing for Differences

Question 1

Parametric tests

Answer 1

Make certain assumptions about the parameters (properties) of the sampled populations

Question 2

Non-parametric tests

Answer 2

Make no such assumptions about distribution

Question 3

The significance of a difference depends on…

Answer 3

the variability in the data and the size of the sample

Question 4

When to use independent sample t-test?

Answer 4

When comparing two different groups

Question 5

When to use paired-sampled t-test?

Answer 5

When comparing the same subject on two different treatment conditions