Statistical Testing

Question 1

When is statistical testing used?

Answer 1

To see if a difference or association is statistically significant.

Question 2

What does ‘significant’ mean?

Answer 2

Whether the result could have occurred by chance or if there is a real effect.

Question 3

What are the three criteria for choosing a statistical test?

Answer 3

1. Difference or correlation
2. Related or unrelated
3. level of measurement

Question 4

Name the two levels of measurements

Answer 4

1. Repeated measures

2. Matched pairs

Question 5

When can you tell if a test is independent groups?

Answer 5

It’s unrelated

Question 6

What is the anagram for the table?

Answer 6

Carrots Should Come Mashed With Swede Under Roast Potatoes

Question 7

Draw out the table

Answer 7

On paper

Question 8

What test should you use for unrelated nominal data?

Answer 8

Chi-squared

Question 9

What test should you use for related nominal data?

Answer 9

Sign test

Question 10

What test should you use for test of association nominal data?

Answer 10

Chi-squared

Question 11

What test should you use for unrelated ordinal data?

Answer 11

Mann-Whitney

Question 12

What test should you use for related ordinal data?

Answer 12

Wilcoxon

Question 13

What test should you use for test of association ordinal data?

Answer 13

Spearman’s rho

Question 14

What test should you use for unrelated interval data?

Answer 14

Unrelated T-test

Question 15

What test should you use for related interval data?

Answer 15

Related T-test

Question 16

What test should you use for test of association interval data?

Answer 16

Pearson’ r

Question 17

Name all of the parts of the table in order

Answer 17

Chi-squared
Sign test
Chi-squared
Mann-Whitney
Wilcoxon
Spearman's rho
Unrelated T-test
Related T-test
Pearson's r

Question 18

How can you tell if data is nominal?

Answer 18

It’s in categories

Question 19

How can you tell if data is ordinal?

Answer 19

It’s in order

Question 20

Name an example of nominal data

Answer 20

Someone naming their favourite food

Question 21

Name an example of ordinal data

Answer 21

Getting someone to rate how much they like something on a scale of 1-10

Question 22

Name an example of interval data

Answer 22

Studies include measuring time or temperature etc.

Question 23

Which data is better interval or ordinal?

Answer 23

Interval data due to more detail being preserved as scores are not converted into ranks.

Question 24

How to tell if it’s related data

Answer 24

Repeated measures and matched pairs

Question 25

How to tell if it’s unrelated data

Answer 25

Independent groups