Chi Square

Chi square

• Used when independent measures design and nominal data
• Chi squared answer has to be smaller than the critical value

• O = observed frequency
• E = expected frequency
• Ignore minuses throughout working out

Step 1: Calculate the totals of the table

• Total of each row
• Total of each column
• Add the totals of each column together

Step 2: Label each original cell with letters 

Step 3: Calculate the expected frequency

Total of a row from named cell X Total…