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because we thought we would get a better representation of the average number of aggressive/unkind

behaviors in the class over a longer time interval. Each time a student participates in an aggressive/unkind

behavior, we will draw a tally on our data collection sheet. We will interpret this data by dividing the total

tally of aggressive/unkind behaviors by the number of students in the classroom. For example, if there are 13

students in the classroom and the total tally of aggressive/unkind behaviors is 14, we would interpret this as an

average of 1.08 aggressive/unkind behaviors per student every 30 minutes. On the following pages, you will

find the data sheet we created and used.

Example Pictures of First Grade’s Data Collection Sheet (Pre-PBIS)

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