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Frequency Finder

Page history last edited by Regina Claypool-Frey 14 years, 3 months ago

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TABLE OF CONTENTS




Pictures of commercially available Frequency and Celeration Finders

Click on a picture to jump to where you can purchase the frequency and celeration finders; while large for purposes of illustration, they are not to full-size scale.



EEU Rate Finder Celeration finder
EEU Rate Finder* CT-CFM-4 Celeration finder, BRCo.

 

* EEU = Experimental Education Unit, University of Washington.

 

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Manuals and other descriptions of use

 

The Finder Book for the Standard Celeration Chart (2.96Mb. pdf), 20pp.

Owen R. White University of Washington, Autumn, 2003

This manual shows how to make and use frequency finders to convert data for charting based on record floor, and other uses. Practice problems given and there is a page of finder templates that can be quick-copied onto transparency film.

 

$ Making Charting Easy: The Frequency Finder, Ch 6, pp. 33-36, and Rapid Plotting with the frequency finder, Ch. 7, pp. 37-38. In, Pennypacker, H.S., Gutierrez, A., Lindsley, O.R. (2003). Handbook of the standard celeration chart, Deluxe edition. Concord, MA: Cambridge Center for Behavioral Studies.

Also available at Cambridge Center for Behavioral Studies

Similar to the White text; also includes instructions on a paper DIY frequency finder made by cutting up a count per minute per day standard celeration chart.

 

In Appreciation of the Frequency Finder

John W. Eshleman, Blogpost 3/24/06 

 

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Example of easy math to do in your head

 

To convert data to counts per minute (however you need to note the actual record floor in your charted data because even though the purpose is to equalize the data for comparison purposes, it is important to know the actual measurement interval and because it cannot be assumed that a frequency measurement at, say, 10 seconds will be that obtained in a one-minute timing).

 

Convert 10 second timing data to counts per minute (i.e., 60 seconds), multiply by 6

Convert 20 second timing data to counts per minute, multiply by 3

Convert 2 minutes timing data to count per minute, multiply by 1/2

Convert 3 minutes timing data to count per minute, multiply by 1/3

ETC.

 

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Using a calculator

 

(60 sec/actual number of seconds)= multiplication factor.

Multiplication factor x counts=frequency to chart

Example: 1 min 17sec recording = 77 seconds; 40 correct and 3 "Learning Opportunities"

(60/77)x 40 = corrects/min to chart = 31 corrects/min

(60/77)x 3 = L.O/min to chart = 2 corrects/min

(Don't forget to chart the record floor so that you will know the actual measurement interval)

 

That said, if you study the pictures of the frequency and celeration finders you can find that they are useful tools for a quick way to view magnitude of celeration, and serve as an additional visual aid for where to drop dots on the chart. The listed manuals also describe other functions that can be performed with frequency finders.

 

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DISCLAIMER: The information on this site is presented on an "as is" basis, and does not claim to present definitive information, make recommendation or to represent such official bodies such as the Standard Celeration Society. Users of this site agree that the owner of the site or authors of pages and articles are indemnified against legal liability.

Fair Use Clause

These pages may contain copyrighted (© ) material and is made available under the "fair use" clause for purposes such as criticism, comment, news reporting, teaching, scholarship, or research, etc. In accordance with Title 17 U.S.C. Section 107, this material is distributed without profit to those who have expressed a prior general interest in receiving similar information for research and educational purposes. For more information go to: http://www.law.cornell.edu/uscode/17/107.shtml. If you wish to use copyrighted material for purposes of your own that go beyond 'fair use', you must obtain permission from the copyright owner.


2/8/08

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