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Answer:b) naturalistic observation
Explanation:
Naturalistic observation is a technique under which observation of the subject is done in its natural environment.
Usually this technique is used when lab research will be unreasonable.
How Does Naturalistic Observation Work?
This technique may be used just because people's responses may be more effective when they are in their comfortable environment than when they are in a lab for research purposes.
Sometimes the result of the research are more effective when the behaviour is observed in an exactly moment when it happens. By watching how people respond to certain situations and stimuli in real-life, psychologists can get a better idea of how and why people react.
If a researcher studies the effectiveness of anti-drug commercials by comparing the self-reported frequency of drug use among teens six months before and six months after the commercial aired, she is using an Pretest/posttest design.
Answer: Option D
<u>Explanation:</u>
The pre-test is defined as a test carried out on a product or service before it is set to enter into the market for sale. It is usually done to check not only the effectiveness and efficiency of the product or service but also to check the safety of it too.
Sometimes a product or service is exposed to text after it enters the market. This is known as post-test as that is carried out after the product enters the market.
