Stats Tests

Question 1

When do you use Wilcoxon Signed Rank Test?

Answer 1

1. When there is a difference in variables
2. When it produces ordinal data
3. When it uses repeated measures design
   - The observed value has to be less than or equal to the critical value.

Question 2

When do you use Spearman’s Rho?

Answer 2

1. When there’s a relationship between co-variables
2. Minimum of ordinal or interval data
   - The observed value has to be greater than or equal to the critical value.

Question 3

When do you use Mann Whitney-U?

Answer 3

1. When there is a difference in variables
2. When it produces ordinal or interval data
3. When it uses independent measures design
   - The observed value has to be less than or equal to the critical value.

Question 4

When do you use Chi Squared?

Answer 4

1. Difference in variables
2. When the data is nominal
3. When it is an independent measures design
   - The observed value has to be greater than or equal to the critical value.

Question 5

When do you use Binomial Sign Test?

Answer 5

1. When there is a difference between variables
2. When it produces nominal (or ordinal and interval) data
3. When it uses repeated measures design

Question 6

Standard Deviation

Answer 6

• shows how varied each piece of data is compared to the rest
• how far away from the mean the data is and how skewed the distribution curve would be