Frequency testing Flashcards
1
Q
What statistical test is used for categorical data?
A
Chi squared
2
Q
When is a goodness of fit chi square test used?
A
When frequencies are assigned to a single set of categories e.g. Sex - male or female
3
Q
What are the differences called when using Chi square?
A
Observed frequencies compared to expected frequencies
4
Q
What do you use when reporting Chi square results?
A
x2, ratio between frequencies, df and P-value
5
Q
When is a two-way classification chi squared test used?
A
2 sets of categories i.e. questionnaires - Male/Female and Yes/No
