This tutorial introduces 9 sources of threat to internal vailidity and asks the user to classify hypothetical experiments as either internally valid or invalid and identify the source of threat if invalid.
Source:
Email Address:
Source Code Available:
Source Code Not Available
Intended User Role:
Learner, Teacher
Material Type:
Resource Type:
Statistical Topic:
Copyrights:
Yes, No
Cost:
Free for All
Format:
Math Level: