sign test

Question 1

significance

Answer 1

to determine whether findings have occurred by chance or not

Question 2

sign test

Answer 2

A simple statistical test to test for a difference in nominal (categorical) data when the same participants have been tested in both conditions (repeated measures design).

Question 3

probability

Answer 3

The accepted level of probability in psychology is 5% (p = 0.05). Even if we find a significant difference or relationship within the data, there is still up to 5% probability that it could have occurred by chance.

Question 4

calculated value

Answer 4

Value produced by statistical test.

Question 5

critical value

Answer 5

Value to be achieved for significance. Found in table of critical values, we need to know N (the number of participants), the probability level (5%) and whether the test is one-tailed or two-tailed.

Question 6

s calculated value

Answer 6

For the sign test, the calculated value (S) has to be equal to or lower than the critical value to be significant.