Answer:
The manipulated variable is plant A listening to classical music.
The responding variable is plant B just there growing lol, its the control group.
Explanation:
He stated that United States should provide support to free people who are continuously resisting and showing oppressiveness against outside pressure or armed minorities.
<u>Explanation:</u>
President Harry S Truman provided 18 minute speech before joint session of congress on 12th March 1947.
Truman stated that U.S. should provide all aids (financial/political/military) to nations which are under threat from internal or external forces. Truman Doctrine marked change in U.S. international policy to containment from isolationism. As an immediate effect in 1947, his effort helped Greek and Turkish to fight against communist.
For a marketing research study to have validity, it must actually measure what it sets out to measure.
Explanation:
When it comes to research, we need to make sure that the measures we are using are reliable and valid.
Reliability refers to consistency across time, items, and researchers. Validity refers to what degree the results of the research reflect what they are intended to reflect (if the research actually measures what it has set out to measure). There are three main types of validity:
- face validity - the extent to which the research actually measures what it's supposed to measure;
- content validity - the extent to which a measure represents all aspects of the researched phenomenon;
- criterion validity - whether the results of the research correlate with other variables they are expected to be correlated with and not correlated with variables they are not expected to be correlated with.
Learn more about the use of databases in research: brainly.com/question/2735192
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