Which one of the following conclusions can be drawn only from an experimental study?
A)Drugs administered during childbirth affect a child's early development.
B)Boys are more likely to show aggressive behavior than girls.
C)Children's muscular coordination improves as they grow older.
D)Children grow taller as they get older.

Question

Quizplus · Accepted Answer

An experimental study involves manipulating variables to establish cause-and-effect relationships. Conclusion A suggests a causal relationship, which can be drawn from an experimental study where the effect of drugs on development is tested.

Which One of the Following Conclusions Can Be Drawn Only