Answer:
Random assignment;
Random selection
Explanation:
Random assignment is a technique for placing subject into the different groups so that the characterstics of the sample can be equally distributed while Random Selection is how we select individuals from the population to participate in study.
Answer:
Nothing
Explanation:
nationality doesn't change
Answer:
Conditioned stimulus
Explanation:
The conditioned stimulus is the neutral stimulus of classical conditioning before conditioning. It becomes associated with the unconditional stimulus, which will eventually trigger the conditional response. Ivan Pavlov has been proposed classical conditioning. In classical conditioning there are
- Conditional stimulus
- Unconditional stimulus
- Conditioned response
- Conditional stimulus.
Thus in the above experiment, The conditional stimulus was the unconditional response.
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.
In the carbon cycle, producers take in the following form of carbon from the atmosphere to perform photosynthesis:
B. CO2 ( Carbon Dioxide)
