parametric test - unrelated

Question 1

why use unrelated test

Answer 1

-difference between data
-interval data
-independent group designs

Question 2

what is step 1 ? table of data

Answer 2

-calc sum of scores for group A and B scores
-square each value in grpA and calc sum of all squared values
-repeat for group B

Question 3

what is step 2- work out value of T

Answer 3

(use formula- revision folder)

Question 4

step 3 the calculated and critical values

Answer 4

• if yu find negative value group b us bigger than grp A
• when checking critical values table ignore the negative sign
  -critical value table= type of test,0.05, degrees of freedom?

Question 5

step 4 - the significance ?

Answer 5

-if calculated value is less than the critical value the result is not significant
- accept null hypothesis

Question 6

look at revision folder - diagrams