Part 2: Categorical Data: Chi-Square

Question 1

What are the two types of chi-square analyses?

Answer 1

Goodness of Fit test (1 IV)
Contingency Table (2+ IV's)

Question 2

What should we do if our expected frequencies are smaller than 5?

Answer 2

Apply Yates Correction

Question 3

What formula should we apply if our expected frequencies are smaller than 5, causing our observed frequencies to be larger than our expected frequencies?

Answer 3

Observed frequency - 0.5

Question 4

What formula should we apply if our expected frequencies are smaller than 5, causing our observed frequencies to be smaller than our expected frequencies?

Answer 4

Observed frequencies + 0.5

Question 5

If we wish to perform chi-square to see if two variables are related, but we don’t have different groups for each variable (the data is not independent), what test do we use?

Answer 5

McNemars Test of Change