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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
A serious weakness of the pretest-posttest, natural control-group design is that
A) the two groups may be statistically different from each other at the start of the study.
B) the two groups may be statistically equivalent at the start of the study.
C) experimenter effects cannot be prevented.
D) there is no control for effects due to history or maturation.
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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#1
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9 years ago
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Cremeux Author
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#2
9 years ago
Excellent, what I needed. Respect
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#3
9 years ago
A thumbs up would be nice Wink Face
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