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www.psychlotron.org.uk
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Name of resource: Correlationizer
Submitted by: Aidan Sammons
Specification details: All
Other specifications: All
Guidance: Requires Microsoft Excel.  Draws scattergraph and calculates correlation coefficient as data pairs are 
entered via an on-screen keypad.  Displays best in 'full screen' mode.  Requires macros to be enabled.

I use this for class demonstrations e.g. stress/illness - get them to complete a measure of each and then enter their 
own data via the IWB.  Good for showing how changes in the data can affect the coefficient etc.