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Home Q & A Board Science-Related Homework Help Psychology
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Bisla Bisla
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9 years ago
Which of the following threats to internal validity is present in a one-group pretest-posttest design?
a. maturation
b. history
c. testing effect
d. none of the above
e. all of the above
Textbook 
Introduction to Behavioral Research Methods

Introduction to Behavioral Research Methods


Edition: 6th
Author:
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sulmaeatersulmaeater
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9 years ago
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Bisla Author
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#2
9 years ago
Very good, appreciate the help.
wrote...
#3
9 years ago
No worries Slight Smile
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