Multiple Choice
The key question in a trend study is
A) whether maturation has invalidated the results.
B) whether the measurements following the experimental treatment are a continuation of earlier patterns or mark a decisive change.
C) whether a single random sample or a succession of samples has been used.
D) how the behavior and attitudes of one respondent differ from those of another.
E) all of these.
Correct Answer:

Verified
Correct Answer:
Verified
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