Manual Event (Session ID,DateTime,Event) = te1qjge2avb32m21n4dpog4u0v 20240420052815 /communities/what-is-the-attrition-effect-that-may-threaten-internal-validity/

What is “attrition”? How does it affect internal validity?

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Leon 100

2 May 2020

What is “attrition”? How does it affect internal validity?

What is “attrition”? How does it affect internal validity?

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Tsz Ching

5 May 2020

Welcome! =]

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Leon 100

5 May 2020

Thank you.

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Tsz Ching

5 May 2020

It refers to the loss of participants owing to dropping out. It can lead to attrition bias and impact the correlation between the variables. Attrition bias can skew a well-designed experiment’s results, making variables show suspicious correlations when they are not and vice versa.

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