Chi Squared Test - One And 2 Way

Question 1

When is one way chi squared test used

Answer 1

When there’s 1 variable

Question 2

What assumptions need to be met

Answer 2

Independent / mutually exclusive data
None of the expected counts are below 1, no more than 1/5 of the cells have an expected count less than 5

Question 3

When is 2 way chi squared test used

Answer 3

When there’s 2 variables

Question 4

When reading from SPSS where do we read from when the assumptions are met?

Answer 4

The Yates continuity correction

Question 5

And if the assumption is broken?

Answer 5

Fishers exact test

Question 6

APA format

Answer 6

A chi squared test (with Yates continuity correction) ….
x2(degrees of freedom, n = ) = value, p ,
Then results… e.g Males (20%) were
significantly more likely to use a mobile phone whilst driving than females (12%).