Unrelated t-test

Question 1

When would a psychologist use a unrelated T-test?

Answer 1

Data comes from research that uses independent groups design
Data is normally distributed
Interval data

Question 2

How do you calculate the degrees of freedom to use in unrelated t-test?

Answer 2

N1 (number in 1st sample) + N2 (number in 2nd sample) - 2

Question 3

What do you do once you have the t value in unrelated t-test?

Answer 3

Look at the table along at the right Df at p=0.05 depending on whether its two tailed or one tailed

Question 4

What conclusions can you draw if the t value is equal to or greater than the critical value in unrelated t-test?

Answer 4

The results are significant
Reject the null hypothesis
Accept the alternative hypothesis

Question 5

what conclusions can you draw if the T value is less than the critical value in unrelated t-test?

Answer 5

The results are not statistically significant
Accept the null hypothesis
Reject the alternative hypothesis