Review discrete trial or task analysis data and calculate percent occurrence, compare with straight frequency data, and discuss which method is best utilized to make program decisions. : Review actual or hypothetical data and calculate percent occurrence when the opportunities to respond are the same and when they vary. Discuss the differences and where percent of occurrence is more meaningful. Date 1 2 3 4 5 6 7 8 9 10 % 1/17 - - - + + + - + + + 60 1/18 - - + + + + + + + + 80 1/19 + + + + + + + + + - 90 If you didn't run the trials that are shaded in, the percentages would be different: Date 1 2 3 4 5 6 7 8 9 10 % 1/17 - - - + + + - + + + 40 1/18 - - + + + + + + + + 71 1/19 + + + + + + + + + + 100