The Sign Test (RM)

Question 1

What can the sign test be used for?

Answer 1

To test the data from experiments with a repeated measures design experiment to check that the results are not the result of chance

Question 2

What is an inferential test?

Answer 2

Tests of significance that tells us the probability that the results of the analysis could have occurred by chance

Question 3

What is significance?

Answer 3

When the results of analysis is significant it means that you can say with some degree of confidence that the results are not due to chance

Question 4

What is step one of the sign test?

Answer 4

Subtract each participant value from the experimental column from their value in the control column, recording its sign (if two scores are equal, insert a 0)

Question 5

What is step 2 of the sign test?

Answer 5

Count the number of time the less frequent sign occurs (this gives us ‘S’)

Question 6

What is step 3 of the sign test?

Answer 6

Count the total number of pluses and minuses (this gives us ‘N’)

Question 7

What is step 4 of the sign test?

Answer 7

Decide if the hypothesis is one tailed or two tailed

Question 8

What is step 5 of the sign test?

Answer 8

Need to use the table of critical values for the sign test
Go down the N column until you come to the number for N
Then to across to the column headed 0.05
The rule states that S must be equal or less than the critical value to be significant

Question 9

What is step 6 of the sign test?

Answer 9

State the conclusion