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Home Q & A Board Laboratory Help Referencing Help
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Cremeux Cremeux
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9 years ago
In the randomized, posttest-only, control-group design, external validity is protected by
A) random selection of the sample.
B) random assignment of participants to groups.
C) use of a control group.
D) None of the above
Textbook 
Research Methods: A Process of Inquiry

Research Methods: A Process of Inquiry


Edition: 8th
Authors:
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stylezstylez
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9 years ago
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Cremeux Author
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#2
9 years ago
I tried searching the textbook all over and couldn't find it. I'm really gracious for your answer, helped me out *a lot*. Problem solved.
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#3
9 years ago
Happy to help Slight Smile
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