tshepi4068 tshepi4068

26-10-2017
Social Studies

contestada

Why do we need to conduct an experiment to determine if therapy is effective?
a. different people say different things in a survey.
b. the correlation is too close to zero.
c. some people prefer some therapies and other people prefer different therapies.
d. conducting an experiment is the only way to determine causality?

Respuesta :

colen8644 colen8644

26-10-2017

I believe C is the answer.

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