0.18. The Sign Test

Question 1

What are inferential statistics tests used for?

Answer 1

To work out if a study is significant

Question 2

What is nominal data?

Answer 2

Collected from categories (dream types, music genre, smoker/non-smoker)

Question 3

What is ordinal data?

Answer 3

Data is a score/measure that is subjective

Question 4

What is interval data?

Answer 4

Data uses universal (objectives) units of measure (time, distance, temp, scores) -> from one interval to the next is the same measure

Question 5

When should the sign test be used?

Answer 5

• Nominal data
• Experimental design
• Test of difference

Question 6

How do you calculate the value of “s”?

Answer 6

1. Take column A from column B ( or B from A, it doesn’t matter)
2. State the sign of the answer, either + or -
3. Any “0”, eliminate that from data sample -> this changes your “n” number
4. Add up how many “+” signs you have
5. Add up how many “-“ signs you have
6. S = the number of the least frequent sign

Question 7

How do you work out if your study is significant?

Answer 7

Get the calculated value of “s” -> you must work this out