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Defusing Statistics Tracey Minzenmayer SCC/MLA 2007
The Basics ,[object Object],[object Object],[object Object]
Discrete & Continuous Variables ,[object Object],6 lb  <  8 lb  <  10 lb
Assessment: Discrete &  Continuous Variables ,[object Object],[object Object],[object Object],[object Object]
Independent & Dependent Variables ,[object Object],[object Object],[object Object],[object Object],[object Object]
Independent & Dependent Variables ,[object Object],[object Object],[object Object],[object Object]
The Normal Curve
Over half the values are within one standard deviation of the mean
Outlier- a value far away from the  rest of the values
Standard Deviation ,[object Object]
Different Standard Deviations
Assessment: Variables & Standard Deviation  ,[object Object],[object Object]
Statistical Analysis ,[object Object],[object Object]
A Word About Trends. . .
Any Questions? Join us on Ning:  http://libassess.ning.com
Photo Credits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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SCC 2007 Defusing Statistics

Notas del editor

  1. It’s time to cover what to do when we’re finally ready to take all that information we’ve gathered and do something with it. . .And this is where a lot of us start having second thoughts about this whole assessment thing. This means the dreaded S word—statistics. It’s enough to make ordinarily brave librarians quake in their sensible shoes. Since statistics can be a little overwhelming at times, we’re going to make this as simplistic and non-threatening as possible.