On day 9 he only completes one module on day 10 he

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On day 9, he only completes one module. On day 10, he does not complete a module.
What do we know? Not much, just yet. Looking at the data from another student may help. Look at the graph on page 62.
Examining Student 2 s Graph This student shows the same dip in work completion on days 9 and 10. The data also shows that Student 2 could not be working on the same modules as Student 1 because he completed more modules on days 1-8.
A possibility Given that both students demonstrated a drop in module completion on the same days, it is a possibility that something was happening on those days to influence their work. Looking at the two graphs and seeing the similarities gives clues.
Interpreting the Data Frequency graphs make it _____________ to see trends. If the amount of work completed increases or decreases over time, it is easier to see when the data are graphed. ESPECIALLY if the change is _____________________. See the 2nd graph on page 62.
A few observations The graph on page 62 shows a more gradual increase a lot more ________________ in the number of modules completed each day
Cumulative Frequency Graphs Definition a graph in which each data point indicates the ____________ number of times the behavior has occurred up to that point.
Cumulative Frequency Graph Shows the total number of times the behavior has occurred during that _______________________ periods.
An Example Let s look at the graph on page 64 of your text. It s the same data from the previous graphs.
Same Data/Two Graphs Simple frequency - shows how much was completed on a specific day Cumulative frequency - shows the ________________ amount of work completed as of a specific day
Days 9 & 10 - Simple Frequency Graph Remember from simple frequency graphs: On days 9 and 10, the student completed one/no modules. On the graph, it shows up as a dip/_______________ slope of the line.
Days 9 & 10 - Cumulative Graph There is ________ dip/downward slope. The line progresses slightly upward and then levels off (stays straight). A horizontal line on a CG means the behavior did not occur at all. A straight line that trends upward means the behavior is occurring at a steady rate.
And if the line goes down? It means someone made a ____________. With a CG, the line can ___________ go down, because you are always adding the current day s data to the previous data. Example: The student cannot complete minus two modules.
The Beauty of Graphs Allows us to see the effects of variables on behavior. For example, if you are trying to solve a behavior problem and you implement a plan, you can see if the rate goes up or down over time. It s a more _________________ way to evaluate the intervention.
Evaluating Interventions It s different in ABA. Many psychological studies involve comparing two or more groups of people. Each group is exposed to a different condition.

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