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Dr. Bloedorn is a health psychologist who researches nutrition. She is curious as to whether a new drink additive will help people consume fewer calories during a meal. The drink additive is a white, odorless, tasteless powder that a person can add to any drink. She collects a random sample of 63 overweight students on campus and measures the calories they eat during lunch using a bomb calorimeter. She then gives this additive to the same 63 participants to use at dinner and measures how many calories they eat (again using the bomb calorimeter) .
The addition of a control group that does not use the drink additive would help Dr. Bloedorn address which of the following threats to internal validity?
Discretionary Responsibility
The expectation for companies or individuals to make ethical decisions and contribute to societal well-being, beyond their economic and legal obligations.
Ethical Responsibility
The obligation to act in a manner that is morally correct, considering the welfare and rights of others and the larger community.
Ethical Behaviour
Acting in ways consistent with what society and individuals typically think are good values.
Ethical Standards
Codes of practice and morality that guide the behavior and decision-making of individuals and organizations.
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