Monthly video: Interpreting p values

Currently, one of the most frequent requests we receive is around, "what is a p value? what does it mean?".

The following videos have been selected to answer the following questions; 

1. what is a p-value?
2. when and where are thy used?
3. what do they show?

The videos use lots of terminology, a key one to remember, is "Null hypothesis, refers to a general statement or default position that there is no relationship between two measured phenomena." If we reject the Null hypothesis, (indicated by a low p-value) we can accept the alternate hypothesis"

Video 1:


Video 2: Looks at it from the perspective of the hypothesis


More YouTube explanations are available from: https://www.youtube.com/results?search_query=interpreting+p+values 

If you have any questions, please email learningservices@ucs.ac.uk

If you are using Google Sheets, there is a template to allow you to calculate a Z and T Test, which produces the p values. For more information, see

• https://drive.google.com/previewtemplate?id=0As3tAuweYU9QcHlVM3hrY2tocEkzUjZwcDFmd2xTRXc&mode=public 

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Thanks - Image Source - http://upload.wikimedia.org/wikipedia/en/0/00/P-value_Graph.png