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www.psychlotron.org.uk
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Name of resource: Sampling: main concepts
Submitted by: Aidan Sammons
Specification details: AQA-A
Other specifications: All
Guidance: Powerpoint slides with a nice little animation to illustrate the concepts of
general population, target population, sample.  This was nowhere near worthwhile the 
time I spent making it.  Also covers some important sampling techniques.

Animation should work with PowerPoint XP, 2003 or later but not with earlier versions.