Chi-squared

Question 1

What is the criteria for chi-square?

Answer 1

1.Difference
2.Indepent measures
3. Nominal data

Question 2

How do you calculate chi-square?

Answer 2

1.Add the totals for each column and row
2.Calculate the expected frequency for each cell of the table.
3.Use the formula for chi-square.
4. Calculate degrees of freedom
5. Use critical value table using degrees of freedom

Question 3

What is the equation for degrees of freedom?

Answer 3

(Number of rows-1) x (Number of columns -1)

Question 4

What is the equation for expected frequency?

Answer 4

Row total x column total / Overall total

Question 5

What is an easy mistake when finding overall total for chi-square?

Answer 5

Adding up all the numbers- only add up row totals.