- My question or hypothesis is: ____________________________________________
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- I have placed an X in the blank in front of four of the threats listed below that apply to my
study. I explain why I think each one is a problem and then explain how I would attempt to
control for the threat. Threats:
______ Subject characteristics ______ Mortality ______ Location
______ Instrumentation ______ Testing ______ History
______ Maturation Subject ______ Regression
______ Implementation ______ Attitude ______ Other
Threat 1: _______________ Why? ___________________________________________
________________________________________________________________________
I will control by __________________________________________________________
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Threat 2: _______________ Why? ___________________________________________
________________________________________________________________________
I will control by __________________________________________________________
________________________________________________________________________
Threat 3: _______________ Why? ___________________________________________
________________________________________________________________________
I will control by __________________________________________________________
________________________________________________________________________
Threat 4: _______________ Why? ___________________________________________
________________________________________________________________________
I will control by __________________________________________________________
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