Chemistry
Chemistry, 27.11.2019 05:31, kyusra2008

•describe the various types of testing done to ensure the effectiveness of ads and discuss the rationale for each of these tests. understand the various types of pretests and posttest including lab tests, field studies, starch tests, day after recall, concept tests, etc. • what is the difference between a lab test and field test?

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•describe the various types of testing done to ensure the effectiveness of ads and discuss the ratio...

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