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Lumpoti Lumpoti
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7 years ago
Peg gives everyone participating in an experiment a pretest which measures attitudes toward the brand. When she examines this data, she notices problems with several of the questions. She revises these questions prior to their use on the post-test. This change could result in ________ threats to internal validity.
A) Testing
B) Researcher bias
C) Historical
D) Interaction
E) Instrumentation
Textbook 
Advertising Research: Theory and Practice

Advertising Research: Theory and Practice


Edition: 2nd
Author:
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6l46l4
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7 years ago
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Lumpoti Author
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#2
7 years ago
I wanted to say thank you earlier, but got busy.
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