Question

1. A control group differs from an experimental group:
A. in the number of test organisms used.
B. by the independent variable.
C. in several ways.
D. in no way.

is it A


2. A theory and a hypothesis are different in that:
A. you must have a theory before you can form a hypothesis.
B. a theory is developed as a result of broad agreement among scientists and a hypothesis is a much less substantiated idea.
C. a theory is much easier to disprove than a hypothesis.
D. a theory can never be disproved while a hypothesis can.



is it B

Answer 1

Neither is correct.

Answer 2

1. The <B>experimental group</B> receives the independent variable.

The <B>control group</B> is similar to experimental, except it does not receive the independent variable. Extraneous variables are balanced between experimental and control groups.

2. http://www.google.com/search?client=safari&rls=en&q=theory+hypothesis+difference&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.