Be able to calculate IOA using the frequency ratio method, Point-by-PointAgreement Ratio method (scoring agreements as occurrences and non-occurrences), andfrequency-within-interval method.
FREQ RATIO - smaller total/larger total X 100
Point By Point - Agreements/agreements +Disagreements X 100
Freq within interval (Disagreements-Total intervals)+(sum of all agreements when small agreement/large agreement)/total intervals x 100