Teachers at School a Were Given a Substance Abuse Knowledge

Teachers at School A were given a substance abuse knowledge test.During the next four months,the teachers attended training sessions in substance abuse.They were then given the knowledge test again.Teachers at School B were given the substance abuse knowledge test,then four months later were given the test again.What kind of design was used?

A) Pretest-posttest true experimental design
B) Non-equivalent control group pretest-posttest design
C) Interrupted time series design
D) One-group posttest-only design

Correct Answer:

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