<span>Experiments</span>
An experimental research entails a
controlled test of a cause-and-effect relationship that researchers suspect
exists. Experiments involve a researcher directly controlling or manipulating
changes in the independent variable by exposing participants to the treatment
conditions. It is undertaken to make a discovery or test a hypothesis
Answer:
I think it is A. Secretary of Defense
Explanation:
Answer:
4
Explanation:
I think the correct answer is number 4 which is the teacher.
Answer: About 6%
Explanation: Over the course of a decade, about ten million Americans changed the way they identify themselves ethnically or racially. That is the main conclusion of a study that compared the information that 168 million people filled in the 2000 and 2010 censuses. Some reason why Americans did this changes were, mainly, personal decisions or government benefits.
