Calculating the Sign Test

Question 1

When do you use a Sign Test?

Answer 1

-Nominal data
-Checking for differences
-Repeated Measures
(OR)
-Matched Pairs

Question 2

How to calculate the Sign Test?

Answer 2

1) State the alternative + null hypotheses
2) Give each pair of data a (+) or (-)
3) Work out the value of S
4) Look up the critical value of S
5) Compare the values + check the rule

Question 3

What must you know in order to complete a Sign Test?

Answer 3

1) Calculated Value of S
(S = number of times the least frequent sign occurs)

2) Critical Value of S

3) N (total number of scores- not 0)

4) Is hypothesis one-tailed (directional) or two-tailed (non-directional)?

Question 4

How do you report a conclusion?

Answer 4

If the calculated value is equal or less than the critical value, the result is significant.