sign test

Question 1

What is the sign test used for

Answer 1

To determined whether the significance we have found in our research is significant

Question 2

What must the researchers ensure so they can use the sign test

Answer 2

• Test of difference (to see if the scores increase or decrease)
• Repeated measures design
• Nominal data (can be organised into categories +,-,0)

Question 3

what is the accepted level of significance in psychology

Answer 3

less than or equal to 0.05 or 5%

Question 4

What is the
S
N
and critical value

Answer 4

S value - calculated value (+/-) lower number
N value - number of participants - any 0s
Critical value - From the table of critical values

Question 5

what type of tailed hypothesis is a directional and non directional

Answer 5

Directional - one tailed
non-directional - 2 tailed

Question 6

How do you tell if the results are significant

Answer 6

The S value must be less than or equal to critical value for the results to be significant