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Crossover Jaws

Page history last edited by Regina Claypool-Frey 11 years, 11 months ago

 

Crossover Jaws Learning Picture

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Learning Picture Name = Crossover Jaws.

Frequency of Correct Responses = Accelerating toward correct frequency aim.

Frequency of Error Responses = Decelerating toward error frequency aim.

Accuracy Ratio = Increasing.

Change to Make = Plan the next step.


Situation Report

Metaphor: Children back in the 1970s named this learning picture "jaws" because the right half of it resembles the jaws of an open mouth, as with that of a shark. Pat All reported on the learning pictures and their names (All, 1977). Likewise, that same year Dr. Ogden R. Lindsley (1977) presented learning pictures to the MABA convention. The blockbuster motion picture "Jaws" was current back then. The "jaws" learning picture becomes a "crossover jaws" when, early on, the frequency of error responses exceeds the frequency of corrects. The corrects accelerate. The errors decelerate. At some point the two celerations meet, and then crossover each other. Hence, the "crossover."

Description: "Crossover jaws" represents a desired learning picture, typically. It shows improvement in both correct and error learning. The corrects accelerate up toward some correct frequency aim. The errors decelerate down toward an error frequency aim, usually below the Record Floor. So, there is both correct learning and error learning.

Decision: If a "crossover jaws" learning picture emerges, monitor progress. Chart and notice whether the correct and error celerations "stay on course." If they do, then probably nothing needs to be changed. Given that the corrects and errors are heading toward and reaching their respective aim goals, the decision to make is to plan the next step in the curriculum.

Notes: The Record Floor represents the amount of time spent recording the behavior of interest. We define it as 1/number of minutes spent recording. On the chart we use a dashes to show it. If the Record Floor stays the same every day, then a dashed line (as shown above) can be used. "Zero" per minute is shown by frequencies plotted just below the Record Floor. All standard celeration charts should have a Record Floor.


Click here to view an animation of Crossover Jaws!


References

All, P. (1977). From get truckin' to jaws, students improve their learning picture. Unpublished master's thesis, University of Kansas.

Lindsley, O.R. (1977). What we know that ain't so. Invited Address presented at the Third Annual meeting of the Midwestern Association of Behavior Analysis, Chicago, IL, May.


Notices

The chart shown above represents a likeness only of a standard celeration chart. The chart shown above is also a "stylized" chart. That means that I constructed it for teaching and illustrative purposes only. It does not show real data. The celeration lines range through more chart cycles than one typically finds.

Dr. Ogden R. Lindsley invented the Standard Celeration Chart, founded Behavior Research Company, and has been the main proponent and developer of both Precision Teaching and standard celeration charting.

Actual Standard Celeration Charts can be purchased from the Behavior Research Company, Box 3351, Kansas City, KS 66103. FAX: 913 362-5900.


The information on this page is for noncommercial educational reference and illustrative purposes only.


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John W. Eshleman, Ed.D. June 2002

 

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